Add sdnr wt devicemanager-openroadm

Add complete sdnr wireless transport device manager for openroadm devices

Issue-ID: CCSDK-2578
Signed-off-by: shabs2020 <shabnam.sultana@highstreet-technologies.com>
Change-Id: Ib09364c44b2a815993fb1182210dad48b681e61f
Signed-off-by: Michael Dürre <michael.duerre@highstreet-technologies.com>

45 files changed, 13382 insertions, 0 deletions

diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/DeviceManagerOpenroadmImpl.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/DeviceManagerOpenroadmImpl.java
new file mode 100644
index 000000000..efda889b9
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/DeviceManagerOpenroadmImpl.java
@@ -0,0 +1,103 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import org.onap.ccsdk.features.sdnr.wt.common.database.HtDatabaseClient;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.factory.FactoryRegistration;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.NetconfNetworkElementService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Class to initialize the OpenRoadm Device Manager
+ **/
+public class DeviceManagerOpenroadmImpl implements AutoCloseable {
+
+    // variables
+    private static final Logger LOG = LoggerFactory.getLogger(DeviceManagerOpenroadmImpl.class);
+    private static final String APPLICATION_NAME = "DeviceManagerOpenRoadm";
+    @SuppressWarnings("unused")
+    private static final String CONFIGURATIONFILE = "etc/devicemanager-opeenroadm.properties";
+    private NetconfNetworkElementService netconfNetworkElementService;
+    private HtDatabaseClient htDatabaseClient;
+    private Boolean devicemanagerInitializationOk = false;
+    private FactoryRegistration<OpenroadmNetworkElementFactory> resOpenRoadm;
+    // end of variables
+
+    // Blueprint begin
+    // constructors
+    public DeviceManagerOpenroadmImpl() {
+        LOG.info("Creating provider for {}", APPLICATION_NAME);
+        resOpenRoadm = null;
+    }
+    // end of constructors
+
+    // public methods
+    public void setNetconfNetworkElementService(NetconfNetworkElementService netconfNetworkElementService) {
+        this.netconfNetworkElementService = netconfNetworkElementService;
+    }
+
+    public void init() throws Exception {
+
+        LOG.info("Session Initiated start {}", APPLICATION_NAME);
+
+        resOpenRoadm = netconfNetworkElementService.registerNetworkElementFactory(new OpenroadmNetworkElementFactory());
+
+
+        netconfNetworkElementService.writeToEventLog(APPLICATION_NAME, "startup", "done");
+        this.devicemanagerInitializationOk = true;
+
+        LOG.info("Session Initiated end. Initialization done {}", devicemanagerInitializationOk);
+    }
+    // Blueprint end
+
+    @Override
+    public void close() throws Exception {
+        LOG.info("closing ...");
+        close(htDatabaseClient);
+        close(resOpenRoadm);
+        LOG.info("closing done");
+    }
+    // end of public methods
+
+    /**
+     * Used to close all Services, that should support AutoCloseable Pattern
+     *
+     * @param toClose
+     * @throws Exception
+     */
+    // private methods
+    private void close(AutoCloseable... toCloseList) {
+        for (AutoCloseable element : toCloseList) {
+            if (element != null) {
+                try {
+                    element.close();
+                } catch (Exception e) {
+                    LOG.warn("Fail during close: ", e);
+                }
+            }
+        }
+    }
+    // end of private methods
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/InitialDeviceAlarmReader.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/InitialDeviceAlarmReader.java
new file mode 100644
index 000000000..70bbfa5c0
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/InitialDeviceAlarmReader.java
@@ -0,0 +1,154 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import java.util.List;
+import org.eclipse.jdt.annotation.NonNull;
+import org.onap.ccsdk.features.sdnr.wt.dataprovider.model.DataProvider;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.DeviceManagerServiceProvider;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.FaultService;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.types.FaultData;
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.ActiveAlarmList;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.OrgOpenroadmAlarmListener;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.Severity;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.active.alarm.list.ActiveAlarms;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.Faultlog;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.SeverityType;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Class to read the initial alarms at the time of device registration
+ *
+ **/
+
+public class InitialDeviceAlarmReader {
+    // variables
+    private Integer count = 1;
+    private static final Logger log = LoggerFactory.getLogger(OrgOpenroadmAlarmListener.class);
+    private final NetconfAccessor netConfAccesor;
+    private final @NonNull FaultService faultEventListener;
+    private final DataProvider dataProvider;
+    // end of variables
+
+    // constructors
+    public InitialDeviceAlarmReader(NetconfAccessor accessor, DeviceManagerServiceProvider serviceProvider) {
+        this.netConfAccesor = accessor;
+        this.faultEventListener = serviceProvider.getFaultService();
+        this.dataProvider = serviceProvider.getDataProvider();
+    }
+    // end of constructors
+
+    // protected methods
+    // Mapping the alarm data with the fault data
+    protected FaultData writeFaultData() {
+        FaultData faultData = new FaultData();
+        if (this.getActiveAlarmList(this.netConfAccesor).getActiveAlarms() != null) {
+            List<ActiveAlarms> activeAlarms = this.getActiveAlarmList(this.netConfAccesor).getActiveAlarms();
+            if (!activeAlarms.isEmpty()) {
+                for (ActiveAlarms activeAlarm : activeAlarms) {
+                    faultData.add(this.netConfAccesor.getNodeId(), this.count, activeAlarm.getRaiseTime(),
+                            activeAlarm.getResource().getDevice().getNodeId().getValue(),
+                            activeAlarm.getProbableCause().getCause().getName(),
+                            checkSeverityValue(activeAlarm.getSeverity()));
+                    count = count + 1;
+                }
+                return faultData;
+            }
+        }
+        return faultData;
+    }
+
+    // Write into the FaultLog
+    protected void writeAlarmLog(FaultData faultData) {
+        if (faultData != null) {
+            List<Faultlog> faultLog = faultData.getProblemList();
+            for (Faultlog fe : faultLog) {
+                this.dataProvider.writeFaultLog(fe);
+            }
+        }
+    }
+
+    // Use the FaultService for Alarm notifications
+    protected void faultService() {
+        this.faultEventListener.initCurrentProblemStatus(this.netConfAccesor.getNodeId(), writeFaultData());
+        writeAlarmLog(writeFaultData());
+    }
+    // end of protected methods
+
+    // private methods
+
+    // Read Alarm Data
+    private ActiveAlarmList getActiveAlarmList(NetconfAccessor accessor) {
+        final Class<ActiveAlarmList> classAlarm = ActiveAlarmList.class;
+        log.info("Get Alarm data for element {}", accessor.getNodeId().getValue());
+        InstanceIdentifier<ActiveAlarmList> alarmDataIid = InstanceIdentifier.builder(classAlarm).build();
+
+        ActiveAlarmList alarmData = accessor.getTransactionUtils().readData(accessor.getDataBroker(),
+                LogicalDatastoreType.OPERATIONAL, alarmDataIid);
+
+        log.info("AlarmData {}", alarmData.toString());
+        return alarmData;
+    }
+
+    // Mapping Severity of AlarmNotification to SeverityType of FaultLog
+    private SeverityType checkSeverityValue(Severity severity) {
+        SeverityType severityType = null;
+        log.info("Device Severity: {}", severity.getName());
+
+        switch (severity.getName()) {
+            case ("warning"):
+                severityType = SeverityType.Warning;
+                break;
+            case ("major"):
+                severityType = SeverityType.Major;
+                break;
+            case ("minor"):
+                severityType = SeverityType.Minor;
+                break;
+            case ("clear"):
+                severityType = SeverityType.NonAlarmed;
+                break;
+            case ("critical"):
+                severityType = SeverityType.Critical;
+                break;
+            case ("indeterminate"):
+                severityType = SeverityType.Critical;
+                break;
+            default:
+                severityType = SeverityType.Critical;
+                break;
+
+        }
+        return severityType;
+
+    }
+    // end of private methods
+
+
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmChangeNotificationListener.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmChangeNotificationListener.java
new file mode 100644
index 000000000..1ba7e990c
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmChangeNotificationListener.java
@@ -0,0 +1,144 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import java.util.List;
+import org.eclipse.jdt.annotation.NonNull;
+import org.onap.ccsdk.features.sdnr.wt.dataprovider.model.DataProvider;
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.ChangeNotification;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.IetfNetconfNotificationsListener;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfCapabilityChange;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfConfigChange;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfConfirmedCommit;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfSessionEnd;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfSessionStart;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.netconf.config.change.Edit;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.EventlogBuilder;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Listener for change notifications
+ *
+ **/
+public class OpenroadmChangeNotificationListener implements IetfNetconfNotificationsListener {
+
+    // variables
+    private static final Logger log = LoggerFactory.getLogger(OpenroadmChangeNotificationListener.class);
+    private final NetconfAccessor netconfAccessor;
+    private final DataProvider databaseService;
+    // end of variables
+
+    // constructors
+    public OpenroadmChangeNotificationListener(NetconfAccessor netconfAccessor, DataProvider databaseService) {
+        this.netconfAccessor = netconfAccessor;
+        this.databaseService = databaseService;
+    }
+    // end of constructors
+
+    // public methods
+    @Override
+    public void onNetconfConfirmedCommit(NetconfConfirmedCommit notification) {
+        log.info("onNetconfConfirmedCommit ", notification);
+    }
+
+    @Override
+    public void onNetconfSessionStart(NetconfSessionStart notification) {
+        log.info("onNetconfSessionStart ", notification);
+    }
+
+    @Override
+    public void onNetconfSessionEnd(NetconfSessionEnd notification) {
+        log.info("onNetconfSessionEnd ", notification);
+    }
+
+    @Override
+    public void onNetconfCapabilityChange(NetconfCapabilityChange notification) {
+        log.info("onNetconfCapabilityChange ", notification);
+    }
+
+    @Override
+    public void onNetconfConfigChange(NetconfConfigChange notification) {
+        log.info("onNetconfConfigChange (1) {}", notification);
+        StringBuffer sb = new StringBuffer();
+        List<Edit> editList = notification.nonnullEdit();
+        for (Edit edit : editList) {
+            if (sb.length() > 0) {
+                sb.append(", ");
+            }
+            sb.append(edit);
+
+            EventlogBuilder eventlogBuilder = new EventlogBuilder();
+
+            InstanceIdentifier<?> target = edit.getTarget();
+            if (target != null) {
+                eventlogBuilder.setObjectId(target.toString());
+                log.info("TARGET: {} {}", target.getClass(), target.getTargetType());
+                for (PathArgument pa : target.getPathArguments()) {
+                    log.info("PathArgument {}", pa);
+                }
+            }
+            eventlogBuilder.setNodeId(netconfAccessor.getNodeId().getValue());
+            eventlogBuilder.setNewValue(String.valueOf(edit.getOperation()));
+            databaseService.writeEventLog(eventlogBuilder.build());
+        }
+        log.info("onNetconfConfigChange (2) {}", sb);
+    }
+
+    public void onDeviceConfigChange(ChangeNotification notification) {
+        log.info("onDeviceConfigChange(1){}", notification);
+        StringBuffer sb = new StringBuffer();
+        @NonNull
+        List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.change.notification.Edit> editList =
+                notification.nonnullEdit();
+        for (org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.change.notification.Edit edit : editList) {
+            if (sb.length() > 0) {
+                sb.append(", ");
+            }
+            sb.append(edit);
+
+            EventlogBuilder eventlogBuilder = new EventlogBuilder();
+
+            InstanceIdentifier<?> target = edit.getTarget();
+            if (target != null) {
+                eventlogBuilder.setObjectId(target.toString());
+                log.info("TARGET: {} {}", target.getClass(), target.getTargetType());
+                for (PathArgument pa : target.getPathArguments()) {
+                    log.info("PathArgument {}", pa);
+                }
+            }
+            eventlogBuilder.setNodeId(netconfAccessor.getNodeId().getValue());
+            eventlogBuilder.setNewValue(String.valueOf(edit.getOperation()));
+            databaseService.writeEventLog(eventlogBuilder.build());
+
+        }
+        log.info("onDeviceConfigChange (2) {}", sb);
+    }
+    // end of public methods
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmDeviceChangeNotificationListener.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmDeviceChangeNotificationListener.java
new file mode 100644
index 000000000..32f8cb0cb
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmDeviceChangeNotificationListener.java
@@ -0,0 +1,122 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import java.util.List;
+import org.eclipse.jdt.annotation.NonNull;
+import org.onap.ccsdk.features.sdnr.wt.dataprovider.model.DataProvider;
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.OrgOpenroadmAlarmListener;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.ChangeNotification;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.CreateTechInfoNotification;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.OrgOpenroadmDeviceListener;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.OtdrScanResult;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.change.notification.Edit;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.EventlogBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.SourceType;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Listener for Open roadm device specific change notifications
+ **/
+
+public class OpenroadmDeviceChangeNotificationListener implements OrgOpenroadmDeviceListener {
+    // variables
+    private static final Logger log = LoggerFactory.getLogger(OrgOpenroadmAlarmListener.class);
+    private Integer counter = 1;
+    private final NetconfAccessor netconfAccessor;
+    private final DataProvider databaseProvider;
+    // end of variables
+
+    // constructors
+    public OpenroadmDeviceChangeNotificationListener(NetconfAccessor netconfAccessor, DataProvider databaseService) {
+        this.netconfAccessor = netconfAccessor;
+        this.databaseProvider = databaseService;
+    }
+    // end of constructors
+
+    // public methods
+    @Override
+    public void onOtdrScanResult(OtdrScanResult notification) {
+        // TODO Auto-generated method stub
+
+    }
+
+    @Override
+    public void onChangeNotification(ChangeNotification notification) {
+        log.info("onDeviceConfigChange(1){}", notification);
+        StringBuffer sb = new StringBuffer();
+
+        @NonNull
+        List<Edit> editList = notification.nonnullEdit();
+        for (Edit edit : editList) {
+            if (sb.length() > 0) {
+                sb.append(", ");
+            }
+            sb.append(edit);
+
+            EventlogBuilder eventlogBuilder = new EventlogBuilder();
+
+            InstanceIdentifier<?> target = edit.getTarget();
+            if (target != null) {
+                eventlogBuilder.setObjectId(target.getPathArguments().toString());
+                log.info("TARGET: {} {}", target.getClass(), target.getTargetType());
+                for (PathArgument pa : target.getPathArguments()) {
+                    log.info("PathArgument {}", pa);
+                }
+                eventlogBuilder.setAttributeName(target.getTargetType().getName());
+            }
+            eventlogBuilder.setNodeId(netconfAccessor.getNodeId().getValue());
+
+            eventlogBuilder.setNewValue(String.valueOf(edit.getOperation()));
+            eventlogBuilder.setTimestamp(notification.getChangeTime());
+            eventlogBuilder.setCounter(counter);
+            eventlogBuilder.setSourceType(SourceType.Netconf);
+            databaseProvider.writeEventLog(eventlogBuilder.build());
+
+            log.info("onDeviceConfigChange (2) {}", sb);
+            counter++;
+        }
+    }
+
+    @Override
+    public void onCreateTechInfoNotification(CreateTechInfoNotification notification) {
+        // TODO Auto-generated method stub
+        log.info("onCreateTechInfoNotification(1){}", notification);
+
+        EventlogBuilder eventlogBuilder = new EventlogBuilder();
+        eventlogBuilder.setId(notification.getShelfId()).setAttributeName(notification.getShelfId())
+                .setObjectId(notification.getShelfId()).setNodeId(this.netconfAccessor.getNodeId().getValue())
+                .setCounter(counter).setNewValue(notification.getStatus().getName()).setSourceType(SourceType.Netconf);
+        databaseProvider.writeEventLog(eventlogBuilder.build());
+        log.info("Create-techInfo Notification written ");
+        counter++;
+
+    }
+    // end of public methods
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmFaultNotificationListener.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmFaultNotificationListener.java
new file mode 100644
index 000000000..69d0af350
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmFaultNotificationListener.java
@@ -0,0 +1,110 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+
+import org.eclipse.jdt.annotation.NonNull;
+//import org.onap.ccsdk.features.sdnr.wt.dataprovider.model.DataProvider;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.DeviceManagerServiceProvider;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.FaultService;
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.AlarmNotification;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.OrgOpenroadmAlarmListener;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.alarm.rev191129.Severity;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.FaultlogBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.FaultlogEntity;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.SeverityType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Listener for Open roadm device specific alarm notifications
+ **/
+public class OpenroadmFaultNotificationListener implements OrgOpenroadmAlarmListener {
+    private static final Logger log = LoggerFactory.getLogger(OrgOpenroadmAlarmListener.class);
+    //private final NetconfAccessor accesor;
+    //private final DataProvider databaseProvider;
+    private final @NonNull FaultService faultEventListener;
+    private Integer count = 1;
+
+    public OpenroadmFaultNotificationListener(NetconfAccessor netConfAccessor,
+            DeviceManagerServiceProvider serviceProvider) {
+        //this.databaseProvider = serviceProvider.getDataProvider();
+        //this.accesor = netConfAccessor;
+        this.faultEventListener = serviceProvider.getFaultService();
+
+    }
+
+    @Override
+    public void onAlarmNotification(AlarmNotification notification) {
+
+        log.info("AlarmNotification {} \t {}", notification.getId(), notification.getAdditionalDetail());
+
+        FaultlogEntity faultAlarm = new FaultlogBuilder().setObjectId(notification.getCircuitId())
+                .setProblem(notification.getProbableCause().getCause().getName())
+                .setTimestamp(notification.getRaiseTime()).setId(notification.getId())
+                .setNodeId(notification.getResource().getDevice().getNodeId().getValue())
+                .setSeverity(checkSeverityValue(notification.getSeverity())).setCounter(count).build();
+
+        //this.databaseProvider.writeFaultLog(faultAlarm);
+        this.faultEventListener.faultNotification(faultAlarm);
+        count++;
+        log.info("Notification is written into the database {}", faultAlarm.getObjectId());
+
+    }
+
+
+    // Mapping Severity of AlarmNotification to SeverityType of FaultLog
+    private SeverityType checkSeverityValue(Severity severity) {
+        SeverityType severityType = null;
+        log.info("Device Severity: {}", severity.getName());
+
+        switch (severity.getName()) {
+            case ("warning"):
+                severityType = SeverityType.Warning;
+                break;
+            case ("major"):
+                severityType = SeverityType.Major;
+                break;
+            case ("minor"):
+                severityType = SeverityType.Minor;
+                break;
+            case ("clear"):
+                severityType = SeverityType.NonAlarmed;
+                break;
+            case ("critical"):
+                severityType = SeverityType.Critical;
+                break;
+            case ("indeterminate"):
+                severityType = SeverityType.Critical;
+                break;
+            default:
+                severityType = SeverityType.Critical;
+                break;
+        }
+        return severityType;
+
+    }
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmInventoryInput.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmInventoryInput.java
new file mode 100644
index 000000000..be79c7ba7
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmInventoryInput.java
@@ -0,0 +1,147 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.OrgOpenroadmDevice;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.circuit.packs.CircuitPacks;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.interfaces.grp.Interface;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.org.openroadm.device.Xponder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.shelves.Shelves;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.Inventory;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.InventoryBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Reading the inventory data of an open roadm device
+ *
+ **/
+public class OpenroadmInventoryInput {
+    // variable
+    private static final Logger log = LoggerFactory.getLogger(OpenroadmInventoryInput.class);
+    private OrgOpenroadmDevice openRoadmDevice;
+    private final NetconfAccessor accessor;
+    // end of variables
+
+    /**
+     * @param netconfAccessor
+     * @param readDevice
+     */
+
+    // constructors
+    public OpenroadmInventoryInput(NetconfAccessor netconfAccessor, OrgOpenroadmDevice readDevice) {
+        this.openRoadmDevice = readDevice;
+        this.accessor = netconfAccessor;
+    }
+    // end of constructors
+
+    // public methods
+    public Inventory getInventoryData(long treeLevel) {
+        InventoryBuilder inventoryBuilder = new InventoryBuilder();
+        inventoryBuilder.setNodeId(this.accessor.getNodeId().getValue())
+                .setUuid(this.openRoadmDevice.getInfo().getNodeId().getValue())
+                .setDate(this.openRoadmDevice.getInfo().getCurrentDatetime().getValue())
+                .setId(this.openRoadmDevice.getInfo().getNodeId().getValue())
+                .setManufacturerIdentifier(this.openRoadmDevice.getInfo().getVendor())
+                .setModelIdentifier(this.openRoadmDevice.getInfo().getModel())
+                .setSerial(this.openRoadmDevice.getInfo().getSerialId()).setTreeLevel(treeLevel)
+                .setVersion(this.openRoadmDevice.getInfo().getOpenroadmVersion().getName())
+                .setDescription("org-openroadm-device").setParentUuid("None")
+                .setTypeName(this.openRoadmDevice.getInfo().getNodeType().getName()).setPartTypeId("device");
+        log.info("Inventory data written for device {}", this.openRoadmDevice.getInfo().getNodeId().getValue());
+        return inventoryBuilder.build();
+    }
+
+    public Inventory getShelvesInventory(Shelves shelf, long treeLevel) {
+        InventoryBuilder inventoryBuilder = new InventoryBuilder();
+        inventoryBuilder.setNodeId(this.accessor.getNodeId().getValue()).setId(shelf.getShelfName())
+                .setDescription((shelf.getUserDescription() == null)
+                        ? ("Position: " + shelf.getShelfPosition() + "\nState: " + shelf.getOperationalState())
+                        : (shelf.getUserDescription()) + "\nPosition: " + shelf.getShelfPosition() + "\nState: "
+                                + shelf.getOperationalState())
+                .setSerial(shelf.getSerialId()).setUuid(shelf.getShelfName())
+                .setParentUuid(this.openRoadmDevice.getInfo().getNodeId().getValue()).setTreeLevel(treeLevel)
+                .setTypeName(shelf.getShelfType()).setPartTypeId(shelf.getClei())
+                .setManufacturerIdentifier(shelf.getVendor()).setModelIdentifier(shelf.getModel())
+                .setVersion(shelf.getHardwareVersion()).setDate(shelf.getManufactureDate().getValue());
+        log.info("Inventory data written for Shelf {}", shelf.getShelfName());
+        return inventoryBuilder.build();
+    }
+
+    public Inventory getInterfacesInventory(Interface deviceInterface, long treeLevel) {
+        InventoryBuilder inventoryBuilder = new InventoryBuilder();
+        inventoryBuilder.setNodeId(this.accessor.getNodeId().getValue()).setId(deviceInterface.getName())
+                .setDescription((deviceInterface.getDescription() == null) ? "N/A" : deviceInterface.getDescription())
+                .setUuid(deviceInterface.getName()).setSerial(deviceInterface.getName())
+                .setParentUuid(deviceInterface.getSupportingCircuitPackName()).setTreeLevel(treeLevel)
+                .setTypeName((deviceInterface.getType() == null) ? "Interface"
+                        : deviceInterface.getType().getName().substring(69,
+                                deviceInterface.getType().getName().length()))
+                .setPartTypeId("Interface").setManufacturerIdentifier(this.openRoadmDevice.getInfo().getVendor())
+                .setModelIdentifier(this.openRoadmDevice.getInfo().getModel()).setVersion("N/A")
+                .setDate(this.openRoadmDevice.getInfo().getCurrentDatetime().getValue());
+        log.info("Inventory data written for Interface {}", deviceInterface.getName());
+
+        return inventoryBuilder.build();
+    }
+
+    public Inventory getCircuitPackInventory(CircuitPacks circuitPack, long treeLevel) {
+        InventoryBuilder inventoryBuilder = new InventoryBuilder();
+        inventoryBuilder.setNodeId(this.accessor.getNodeId().getValue()).setUuid(circuitPack.getCircuitPackName())
+                .setDate((circuitPack.getManufactureDate() == null) ? "N/A"
+                        : circuitPack.getManufactureDate().getValue().substring(0, 19))
+                .setId(circuitPack.getCircuitPackName()).setManufacturerIdentifier(circuitPack.getVendor())
+                .setModelIdentifier(circuitPack.getModel()).setSerial(circuitPack.getSerialId()).setTreeLevel(treeLevel)
+                .setVersion(circuitPack.getHardwareVersion())
+                .setDescription("ProductCode: " + circuitPack.getProductCode() + "  " + "Mode: "
+                        + circuitPack.getCircuitPackMode())
+                .setTypeName((circuitPack.getType() == null) ? circuitPack.getCircuitPackType() : circuitPack.getType())
+                .setPartTypeId((circuitPack.getClei() == null) ? circuitPack.getType() : circuitPack.getClei())
+                .setParentUuid((circuitPack.getParentCircuitPack() != null)
+                        ? circuitPack.getParentCircuitPack().getCircuitPackName()
+                        : (circuitPack.getShelf() != null) ? circuitPack.getShelf()
+                                : this.openRoadmDevice.getInfo().getNodeId().getValue());
+        log.info("Inventory data written for CircuitPack {}", circuitPack.getCircuitPackName());
+
+        return inventoryBuilder.build();
+    }
+
+    public Inventory getXponderInventory(Xponder xpdr, long treeLevel) {
+        InventoryBuilder inventoryBuilder = new InventoryBuilder();
+        inventoryBuilder.setNodeId(this.accessor.getNodeId().getValue()).setId(xpdr.getXpdrNumber().toString())
+                .setDescription("Xponder\nLifecycleState: " + xpdr.getLifecycleState().getName())
+                .setUuid(xpdr.getXpdrNumber().toString()).setSerial(xpdr.getXpdrNumber().toString())
+                .setParentUuid(this.openRoadmDevice.getInfo().getNodeId().getValue()).setTreeLevel(treeLevel)
+                .setTypeName(xpdr.getXpdrType().getName()).setPartTypeId(xpdr.getXpdrType().getName())
+                .setManufacturerIdentifier(this.openRoadmDevice.getInfo().getVendor())
+                .setModelIdentifier(this.openRoadmDevice.getInfo().getModel())
+                .setVersion(this.openRoadmDevice.getInfo().getOpenroadmVersion().getName())
+                .setDate(this.openRoadmDevice.getInfo().getCurrentDatetime().getValue());
+        log.info("Inventory data written for Xponder{}", xpdr.getXpdrNumber());
+
+        return inventoryBuilder.build();
+    }
+    // end of public methods
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmNetworkElement.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmNetworkElement.java
new file mode 100644
index 000000000..98e5e4659
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmNetworkElement.java
@@ -0,0 +1,325 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import java.util.ArrayList;
+import java.util.Hashtable;
+import java.util.List;
+import java.util.Optional;
+import org.eclipse.jdt.annotation.NonNull;
+import org.onap.ccsdk.features.sdnr.wt.dataprovider.model.DataProvider;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.service.NetworkElement;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.service.NetworkElementService;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.DeviceManagerServiceProvider;
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.OrgOpenroadmDevice;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.circuit.packs.CircuitPacks;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.interfaces.grp.Interface;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.org.openroadm.device.Xponder;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.shelf.Slots;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.shelves.Shelves;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.xponder.XpdrPort;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.NetworkElementDeviceType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.PmdataEntity;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.NotificationListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Creating the openroadm device as an optical network element and writing inventory, fault, pm data to elastic
+ *         search db
+ *
+ **/
+public class OpenroadmNetworkElement implements NetworkElement {
+
+    // variables
+    private final long equipmentLevel = 0;
+    private static final Logger log = LoggerFactory.getLogger(OpenroadmNetworkElement.class);
+    private final NetconfAccessor netconfAccessor;
+    private final DataProvider databaseService;
+    private Hashtable<String, Long> circuitPacksRecord;
+    private Hashtable<String, Long> shelfProvisionedcircuitPacks;
+    private ListenerRegistration<NotificationListener> openRdmListenerRegistrationResult;
+    private @NonNull final OpenroadmChangeNotificationListener openRdmListener;
+    private ListenerRegistration<NotificationListener> opnRdmFaultListenerRegistrationResult;
+    private @NonNull OpenroadmFaultNotificationListener opnRdmFaultListener;
+    private ListenerRegistration<NotificationListener> opnRdmDeviceListenerRegistrationResult;
+    private OpenroadmDeviceChangeNotificationListener opnRdmDeviceListener;
+    private OpenroadmInventoryInput opnRdmInventoryInput;
+    private PmDataBuilderOpenRoadm openRoadmPmData;
+    private InitialDeviceAlarmReader initialAlarmReader;
+    private List<PmdataEntity> pmDataEntity = new ArrayList<PmdataEntity>();
+    // end of variables
+
+    // constructors
+    public OpenroadmNetworkElement(NetconfAccessor netconfAccess, DeviceManagerServiceProvider serviceProvider) {
+
+        log.info("Create {}", OpenroadmNetworkElement.class.getSimpleName());
+        this.netconfAccessor = netconfAccess;
+        this.databaseService = serviceProvider.getDataProvider();
+        this.openRdmListenerRegistrationResult = null;
+        this.openRdmListener = new OpenroadmChangeNotificationListener(netconfAccessor, databaseService);
+        this.opnRdmFaultListenerRegistrationResult = null;
+        this.opnRdmFaultListener = new OpenroadmFaultNotificationListener(netconfAccessor, serviceProvider);
+        this.opnRdmDeviceListenerRegistrationResult = null;
+        this.opnRdmDeviceListener = new OpenroadmDeviceChangeNotificationListener(netconfAccessor, databaseService);
+        this.opnRdmInventoryInput = new OpenroadmInventoryInput(netconfAccess, readDevice(netconfAccess));
+        this.circuitPacksRecord = new Hashtable<String, Long>();
+        this.shelfProvisionedcircuitPacks = new Hashtable<String, Long>();
+        this.openRoadmPmData = new PmDataBuilderOpenRoadm(this.netconfAccessor);
+        this.initialAlarmReader = new InitialDeviceAlarmReader(this.netconfAccessor, serviceProvider);
+        log.info("NodeId {}", this.netconfAccessor.getNodeId().getValue());
+        log.info("oScaMapper details{}", this.opnRdmInventoryInput.getClass().getName());
+
+    }
+    // end of constructors
+
+    // public methods
+    public void initialReadFromNetworkElement() {
+        OrgOpenroadmDevice device = readDevice(this.netconfAccessor);
+        databaseService.writeInventory(this.opnRdmInventoryInput.getInventoryData(equipmentLevel));
+
+        readShelvesData(device);
+        readXpndrData(device);
+        readCircuitPacketData(device);
+        readInterfaceData(device);
+        // Writing initial alarms at the time of device registration
+        initialAlarmReader.faultService();
+        // faultEventListener.initCurrentProblemStatus(this.netconfAccessor.getNodeId(),
+        // oScaFaultListener.writeFaultData(this.sequenceNumber));
+        // oScaFaultListener.writeAlarmLog(oScaFaultListener.writeFaultData(this.sequenceNumber));
+        // this.sequenceNumber = this.sequenceNumber + 1;
+
+        pmDataEntity = this.openRoadmPmData.buildPmDataEntity(this.openRoadmPmData.getPmData(this.netconfAccessor));
+        if (!pmDataEntity.isEmpty()) {
+            this.databaseService.doWritePerformanceData(pmDataEntity);
+            log.info("PmDatEntity is written with size {}", pmDataEntity.size());
+            for (PmdataEntity ent : pmDataEntity) {
+                log.info("GetNode: {}, granPeriod: {}", ent.getNodeName(), ent.getGranularityPeriod().getName());
+            }
+        } else {
+            log.info("PmDatEntity is empty");
+        }
+
+    }
+
+    @Override
+    public NetworkElementDeviceType getDeviceType() {
+        return NetworkElementDeviceType.OROADM;
+    }
+
+    @Override
+    public void register() {
+        initialReadFromNetworkElement();
+
+        this.openRdmListenerRegistrationResult = netconfAccessor.doRegisterNotificationListener(openRdmListener);
+        this.opnRdmFaultListenerRegistrationResult =
+                netconfAccessor.doRegisterNotificationListener(opnRdmFaultListener);
+        this.opnRdmDeviceListenerRegistrationResult =
+                netconfAccessor.doRegisterNotificationListener(opnRdmDeviceListener);
+        // Register netconf stream
+        netconfAccessor.registerNotificationsStream(NetconfAccessor.DefaultNotificationsStream);
+
+    }
+
+    @Override
+    public void deregister() {
+        if (openRdmListenerRegistrationResult != null) {
+            this.openRdmListenerRegistrationResult.close();
+        }
+        if (opnRdmFaultListenerRegistrationResult != null) {
+            this.opnRdmFaultListenerRegistrationResult.close();
+        }
+        if (opnRdmDeviceListenerRegistrationResult != null) {
+            this.opnRdmDeviceListenerRegistrationResult.close();
+        }
+    }
+
+    @Override
+    public NodeId getNodeId() {
+        return netconfAccessor.getNodeId();
+    }
+
+    @Override
+    public <L extends NetworkElementService> Optional<L> getService(Class<L> clazz) {
+        return Optional.empty();
+    }
+
+    @Override
+    public void warmstart() {}
+
+    @Override
+    public Optional<NetconfAccessor> getAcessor() {
+        return Optional.of(netconfAccessor);
+    }
+    // end of public methods
+
+    // private methods
+    private void readShelvesData(OrgOpenroadmDevice device) {
+        List<Shelves> shelves = device.getShelves();
+        if (shelves != null) {
+            for (Shelves shelf : shelves) {
+                log.info(
+                        "Shelf Name: {}, \n Serial Id:{}, \n Product Code;{}, \n Position:{}, \n EquipmetState: {}, \n Hardware version: {}"
+                                + "\n ShelfType:{}, \n Vendor: {}, \n LifecycleState: {} ",
+                        shelf.getShelfName(), shelf.getSerialId(), shelf.getProductCode(), shelf.getShelfPosition(),
+                        shelf.getEquipmentState(), shelf.getHardwareVersion(), shelf.getShelfType(), shelf.getVendor(),
+                        shelf.getLifecycleState());
+                databaseService
+                        .writeInventory(this.opnRdmInventoryInput.getShelvesInventory(shelf, equipmentLevel + 1));
+                List<Slots> slotList = shelf.getSlots();
+                if (slotList != null) {
+                    for (Slots slot : slotList) {
+                        if (!slot.getProvisionedCircuitPack().isEmpty()) {
+                            this.shelfProvisionedcircuitPacks.put(slot.getProvisionedCircuitPack(), equipmentLevel + 2);
+                        }
+                        log.info("Slots for the shelf: {}", shelf.getShelfName());
+                        log.info("\n Slot Name: {}, \n Status: {}, \n Slot label: {} ", slot.getSlotName(),
+                                slot.getSlotStatus(), slot.getLabel());
+                    }
+                }
+                log.info("size of shelfProvisionedcircuitPacks: {} ", shelfProvisionedcircuitPacks.size());
+
+            }
+
+        }
+    }
+
+    private void readXpndrData(OrgOpenroadmDevice device) {
+        List<Xponder> xponderList = device.getXponder();
+        if (xponderList != null) {
+            for (Xponder xponder : xponderList) {
+                databaseService
+                        .writeInventory(this.opnRdmInventoryInput.getXponderInventory(xponder, equipmentLevel + 1));
+                log.info("Xponders: No.: {} , \n Port: {} ,\n Type: {}", xponder.getXpdrNumber(), xponder.getXpdrPort(),
+                        xponder.getXpdrType());
+                List<XpdrPort> xpdrportlist = xponder.getXpdrPort();
+                if (xpdrportlist != null) {
+                    for (XpdrPort xpdrport : xpdrportlist)
+                        if (!xpdrport.getCircuitPackName().isEmpty()) {
+                            this.shelfProvisionedcircuitPacks.put(xpdrport.getCircuitPackName(), equipmentLevel + 2);
+                            log.info("Size of dict{}", this.shelfProvisionedcircuitPacks.size());
+                        }
+
+
+                }
+            }
+
+        }
+    }
+
+    private void readCircuitPacketData(OrgOpenroadmDevice device) {
+        List<CircuitPacks> circuitpacklist = device.getCircuitPacks();
+
+        if (circuitpacklist != null) {
+            for (CircuitPacks cp : circuitpacklist) {
+                log.info("CP Name:{}", cp.getCircuitPackName());
+                if (!this.shelfProvisionedcircuitPacks.isEmpty()
+                        && this.shelfProvisionedcircuitPacks.containsKey(cp.getCircuitPackName())) {
+
+                    this.circuitPacksRecord.put(cp.getCircuitPackName(), (equipmentLevel + 2));
+                    databaseService.writeInventory(this.opnRdmInventoryInput.getCircuitPackInventory(cp,
+                            this.shelfProvisionedcircuitPacks.get(cp.getCircuitPackName())));
+                    log.info("shelf has circuit pack");
+                } else {
+                    if (cp.getParentCircuitPack() == null) {
+                        this.circuitPacksRecord.put(cp.getCircuitPackName(), (equipmentLevel + 1));
+                        databaseService.writeInventory(
+                                this.opnRdmInventoryInput.getCircuitPackInventory(cp, equipmentLevel + 1));
+                        log.info("Cp has no parent circuit pack and no shelf");
+
+                    } else {
+                        if (this.shelfProvisionedcircuitPacks
+                                .containsKey(cp.getParentCircuitPack().getCircuitPackName())) {
+                            this.circuitPacksRecord.put(cp.getCircuitPackName(), (equipmentLevel + 3));
+                            databaseService.writeInventory(
+                                    this.opnRdmInventoryInput.getCircuitPackInventory(cp, equipmentLevel + 3));
+                            log.info("Cp {} has parent circuit pack and shelf", cp.getCircuitPackName());
+                        } else {
+                            this.circuitPacksRecord.put(cp.getCircuitPackName(), (equipmentLevel + 2));
+                            databaseService.writeInventory(
+                                    this.opnRdmInventoryInput.getCircuitPackInventory(cp, equipmentLevel + 2));
+                            log.info("Cp {} has parent circuit pack but no shelf", cp.getCircuitPackName());
+
+                        }
+
+
+                    }
+                }
+
+
+            }
+
+        }
+
+    }
+
+    private void readInterfaceData(OrgOpenroadmDevice device) {
+        List<Interface> interfaceList = device.getInterface();
+        if (interfaceList != null) {
+            for (Interface deviceInterface : interfaceList) {
+
+                log.info("\n InterfaceName: {}", deviceInterface.getName());
+                log.info("Supporting CP {}", this.circuitPacksRecord.size());
+                for (String s : this.circuitPacksRecord.keySet()) {
+                    log.info("{} value {}", s, this.circuitPacksRecord.get(s));
+                }
+                log.info("Interface {} and their supporting CP {}", deviceInterface.getName(),
+                        deviceInterface.getSupportingCircuitPackName());
+
+
+                if (deviceInterface.getSupportingCircuitPackName() != null) {
+                    if (this.circuitPacksRecord.containsKey(deviceInterface.getSupportingCircuitPackName())) {
+                        databaseService.writeInventory(this.opnRdmInventoryInput.getInterfacesInventory(deviceInterface,
+                                this.circuitPacksRecord.get(deviceInterface.getSupportingCircuitPackName()) + 1));
+                    }
+
+                } else {
+                    databaseService.writeInventory(
+                            this.opnRdmInventoryInput.getInterfacesInventory(deviceInterface, equipmentLevel + 1));
+                }
+            }
+        }
+
+    }
+
+    private OrgOpenroadmDevice readDevice(NetconfAccessor accessor) {
+
+        final Class<OrgOpenroadmDevice> openRoadmDev = OrgOpenroadmDevice.class;
+        InstanceIdentifier<OrgOpenroadmDevice> deviceId = InstanceIdentifier.builder(openRoadmDev).build();
+
+        OrgOpenroadmDevice device = accessor.getTransactionUtils().readData(accessor.getDataBroker(),
+                LogicalDatastoreType.OPERATIONAL, deviceId);
+
+        return device;
+
+    }
+    // end of private methods
+
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmNetworkElementFactory.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmNetworkElementFactory.java
new file mode 100644
index 000000000..f19d2b2f4
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/OpenroadmNetworkElementFactory.java
@@ -0,0 +1,65 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import java.util.List;
+import java.util.Optional;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.factory.NetworkElementFactory;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.service.NetworkElement;
+import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.DeviceManagerServiceProvider;
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev191129.OrgOpenroadmDevice;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Shabnam Sultana
+ *
+ *         Register the openroadm device as an optical network element
+ *
+ **/
+
+public class OpenroadmNetworkElementFactory implements NetworkElementFactory {
+
+    // variables
+    private static final Logger log = LoggerFactory.getLogger(OpenroadmNetworkElementFactory.class);
+    // end of variables
+
+    // public methods
+    @Override
+    public Optional<NetworkElement> create(NetconfAccessor acessor, DeviceManagerServiceProvider serviceProvider) {
+        List<String> capabilities = acessor.getCapabilites().getCapabilities();
+
+        capabilities.forEach(capability -> log.info("Capabilities for element are :{}", capability));
+        if (acessor.getCapabilites().isSupportingNamespace(OrgOpenroadmDevice.QNAME)) {
+            log.info("Create OpenRoadm device {} ", OpenroadmNetworkElement.class.getName());
+            log.info("Node Id read by Acessor {}:", acessor.getNodeId().getValue());
+
+            return Optional.of(new OpenroadmNetworkElement(acessor, serviceProvider));
+        } else {
+            return Optional.empty();
+        }
+    }
+    // end of public methods
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/PmDataBuilderOpenRoadm.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/PmDataBuilderOpenRoadm.java
new file mode 100644
index 000000000..755f8ed9f
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/onap/ccsdk/features/sdnr/wt/devicemanager/openroadm/impl/PmDataBuilderOpenRoadm.java
@@ -0,0 +1,139 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2020 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.onap.ccsdk.features.sdnr.wt.netconfnodestateservice.NetconfAccessor;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.pm.rev191129.HistoricalPmList;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.pm.rev191129.historical.pm.group.HistoricalPm;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.pm.rev191129.historical.pm.list.HistoricalPmEntry;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.pm.rev191129.historical.pm.val.group.Measurement;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.pm.types.rev191129.PmGranularity;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.GranularityPeriodType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.PmdataEntity;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.PmdataEntityBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.pmdata.entity.PerformanceData;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.data.provider.rev190801.pmdata.entity.PerformanceDataBuilder;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author shabnam
+ *
+ *         Reading Openroadm PM data and returning as PmDataEntitiy data
+ */
+public class PmDataBuilderOpenRoadm {
+    // variables
+    private static final Logger log = LoggerFactory.getLogger(OpenroadmNetworkElement.class);
+    private PmdataEntityBuilder pmDataBuilder;
+
+    // end of variables
+    // constructors
+    public PmDataBuilderOpenRoadm(NetconfAccessor accessor) {
+        this.pmDataBuilder = new PmdataEntityBuilder();
+        this.pmDataBuilder.setNodeName(accessor.getNodeId().getValue());
+    }
+
+    // end of constructors
+    // public methods
+    // Read PM data
+    public HistoricalPmList getPmData(NetconfAccessor accessor) {
+        final Class<HistoricalPmList> pmDataClass = HistoricalPmList.class;
+        log.info("Get PM data for element {}", accessor.getNodeId().getValue());
+        InstanceIdentifier<HistoricalPmList> pmDataIid = InstanceIdentifier.builder(pmDataClass).build();
+        return accessor.getTransactionUtils().readData(accessor.getDataBroker(), LogicalDatastoreType.OPERATIONAL,
+                pmDataIid);
+
+    }
+
+    // Build PM entity for writing into the database
+    public List<PmdataEntity> buildPmDataEntity(HistoricalPmList historicalPmEnitityList) {
+        List<PmdataEntity> pmEntitiyList = new ArrayList<>();
+        List<HistoricalPmEntry> pmDataEntryList = historicalPmEnitityList.getHistoricalPmEntry();
+        for (HistoricalPmEntry pmDataEntry : pmDataEntryList) {
+            pmDataBuilder.setUuidInterface(pmDataEntry.getPmResourceType().getName());
+            List<HistoricalPm> historicalPmList = pmDataEntry.getHistoricalPm();
+            for (HistoricalPm historicalPm : historicalPmList) {
+                log.info("PmName:{}", historicalPm.getType());
+                this.pmDataBuilder.setScannerId(historicalPm.getType().getName());
+                writeperformanceData(historicalPm);
+                log.info("NodeName: {}, Scanner Id:{}, Period: {}", this.pmDataBuilder.getNodeName(),
+                        this.pmDataBuilder.getScannerId(), this.pmDataBuilder.getGranularityPeriod().getName());
+                pmEntitiyList.add(this.pmDataBuilder.build());
+                log.info("PmListSize before db writing: {}", pmEntitiyList.size());
+            }
+            log.info("PmListSize before db writing: {}", pmEntitiyList.size());
+        }
+        return pmEntitiyList;
+    }
+    // end of public methods
+
+    // private methods
+    private void writeperformanceData(HistoricalPm historicalPm) {
+        List<Measurement> measurementList = historicalPm.getMeasurement();
+
+        for (Measurement measurementData : measurementList) {
+            this.pmDataBuilder.setGranularityPeriod(mapGranularityPeriod(measurementData.getGranularity()))
+                    .setPerformanceData(getPerformancedata(measurementData))
+                    .setTimeStamp(measurementData.getCompletionTime());
+            if (measurementData.getValidity().getName().equals("suspect")) {
+                this.pmDataBuilder.setSuspectIntervalFlag(true);
+            }
+            log.info("Time:d{}, \n Scannerid: {}, \n UUID: {}", this.pmDataBuilder.getGranularityPeriod().getName(),
+                    this.pmDataBuilder.getScannerId(), this.pmDataBuilder.getUuidInterface());
+        }
+    }
+
+    //Map Performance data of PmDataEntity with  MeasurmentData-HistoricalPm
+    private PerformanceData getPerformancedata(Measurement measurementData) {
+        PerformanceData performanceData;
+        PerformanceDataBuilder performanceDataBuilder = new PerformanceDataBuilder();
+        performanceData = performanceDataBuilder.setCses(measurementData.getBinNumber())
+                .setSes(measurementData.getPmParameterValue().getUint64().intValue()).build();
+        return performanceData;
+    }
+
+    // Mapping Granularity period of PmDataEntity with PmGranularity of MeasurmentData-HistoricalPm
+    private GranularityPeriodType mapGranularityPeriod(PmGranularity pmGranularity) {
+
+        GranularityPeriodType granPeriod = null;
+        switch (pmGranularity.getName()) {
+            case ("notApplicable"):
+                granPeriod = GranularityPeriodType.Unknown;
+                break;
+            case ("15min"):
+                granPeriod = GranularityPeriodType.Period15Min;
+                break;
+            case ("24Hour"):
+                granPeriod = GranularityPeriodType.Period24Hours;
+                break;
+            default:
+                granPeriod = GranularityPeriodType.Period15Min;
+                break;
+        }
+        return granPeriod;
+    }
+    // end of private methods
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/http/org/openroadm/pm/types/rev191129/PmDataTypeBuilder.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/http/org/openroadm/pm/types/rev191129/PmDataTypeBuilder.java
new file mode 100644
index 000000000..249da71fb
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/http/org/openroadm/pm/types/rev191129/PmDataTypeBuilder.java
@@ -0,0 +1,21 @@
+package org.opendaylight.yang.gen.v1.http.org.openroadm.pm.types.rev191129;
+
+/**
+ * The purpose of generated class in src/main/java for Union types is to create new instances of unions from a string
+ * representation. In some cases it is very difficult to automate it since there can be unions such as (uint32 -
+ * uint16), or (string - uint32).
+ *
+ * The reason behind putting it under src/main/java is: This class is generated in form of a stub and needs to be
+ * finished by the user. This class is generated only once to prevent loss of user code.
+ *
+ */
+public class PmDataTypeBuilder {
+    private PmDataTypeBuilder() {
+        //Exists only to defeat instantiation.
+    }
+
+    public static PmDataType getDefaultInstance(String defaultValue) {
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/OperatorStateBuilder.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/OperatorStateBuilder.java
new file mode 100644
index 000000000..30a55a203
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/OperatorStateBuilder.java
@@ -0,0 +1,21 @@
+package org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.alarms.rev190911;
+
+/**
+ * The purpose of generated class in src/main/java for Union types is to create new instances of unions from a string
+ * representation. In some cases it is very difficult to automate it since there can be unions such as (uint32 -
+ * uint16), or (string - uint32).
+ *
+ * The reason behind putting it under src/main/java is: This class is generated in form of a stub and needs to be
+ * finished by the user. This class is generated only once to prevent loss of user code.
+ *
+ */
+public class OperatorStateBuilder {
+    private OperatorStateBuilder() {
+        //Exists only to defeat instantiation.
+    }
+
+    public static OperatorState getDefaultInstance(String defaultValue) {
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/ResourceBuilder.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/ResourceBuilder.java
new file mode 100644
index 000000000..a803bae97
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/ResourceBuilder.java
@@ -0,0 +1,21 @@
+package org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.alarms.rev190911;
+
+/**
+ * The purpose of generated class in src/main/java for Union types is to create new instances of unions from a string
+ * representation. In some cases it is very difficult to automate it since there can be unions such as (uint32 -
+ * uint16), or (string - uint32).
+ *
+ * The reason behind putting it under src/main/java is: This class is generated in form of a stub and needs to be
+ * finished by the user. This class is generated only once to prevent loss of user code.
+ *
+ */
+public class ResourceBuilder {
+    private ResourceBuilder() {
+        //Exists only to defeat instantiation.
+    }
+
+    public static Resource getDefaultInstance(String defaultValue) {
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/ResourceMatchBuilder.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/ResourceMatchBuilder.java
new file mode 100644
index 000000000..bbfa37f40
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/ResourceMatchBuilder.java
@@ -0,0 +1,21 @@
+package org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.alarms.rev190911;
+
+/**
+ * The purpose of generated class in src/main/java for Union types is to create new instances of unions from a string
+ * representation. In some cases it is very difficult to automate it since there can be unions such as (uint32 -
+ * uint16), or (string - uint32).
+ *
+ * The reason behind putting it under src/main/java is: This class is generated in form of a stub and needs to be
+ * finished by the user. This class is generated only once to prevent loss of user code.
+ *
+ */
+public class ResourceMatchBuilder {
+    private ResourceMatchBuilder() {
+        //Exists only to defeat instantiation.
+    }
+
+    public static ResourceMatch getDefaultInstance(String defaultValue) {
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/SeverityWithClearBuilder.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/SeverityWithClearBuilder.java
new file mode 100644
index 000000000..9fb90b438
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/SeverityWithClearBuilder.java
@@ -0,0 +1,21 @@
+package org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.alarms.rev190911;
+
+/**
+ * The purpose of generated class in src/main/java for Union types is to create new instances of unions from a string
+ * representation. In some cases it is very difficult to automate it since there can be unions such as (uint32 -
+ * uint16), or (string - uint32).
+ *
+ * The reason behind putting it under src/main/java is: This class is generated in form of a stub and needs to be
+ * finished by the user. This class is generated only once to prevent loss of user code.
+ *
+ */
+public class SeverityWithClearBuilder {
+    private SeverityWithClearBuilder() {
+        //Exists only to defeat instantiation.
+    }
+
+    public static SeverityWithClear getDefaultInstance(String defaultValue) {
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/alarms/ControlMaxAlarmStatusChangesBuilder.java b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/alarms/ControlMaxAlarmStatusChangesBuilder.java
new file mode 100644
index 000000000..2b8e8af57
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/java/org/opendaylight/yang/gen/v1/urn/ietf/params/xml/ns/yang/ietf/alarms/rev190911/alarms/ControlMaxAlarmStatusChangesBuilder.java
@@ -0,0 +1,21 @@
+package org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.alarms.rev190911.alarms;
+
+/**
+ * The purpose of generated class in src/main/java for Union types is to create new instances of unions from a string
+ * representation. In some cases it is very difficult to automate it since there can be unions such as (uint32 -
+ * uint16), or (string - uint32).
+ *
+ * The reason behind putting it under src/main/java is: This class is generated in form of a stub and needs to be
+ * finished by the user. This class is generated only once to prevent loss of user code.
+ *
+ */
+public class ControlMaxAlarmStatusChangesBuilder {
+    private ControlMaxAlarmStatusChangesBuilder() {
+        //Exists only to defeat instantiation.
+    }
+
+    public static Control.MaxAlarmStatusChanges getDefaultInstance(String defaultValue) {
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/resources/org/opendaylight/blueprint/impl-blueprint.xml b/sdnr/wt/devicemanager-openroadm/provider/src/main/resources/org/opendaylight/blueprint/impl-blueprint.xml
new file mode 100644
index 000000000..ff3e6a72d
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/resources/org/opendaylight/blueprint/impl-blueprint.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ ============LICENSE_START=======================================================
+  ~ ONAP : ccsdk features
+  ~ ================================================================================
+  ~ Copyright (C) 2019 highstreet technologies GmbH Intellectual Property.
+  ~ All rights reserved.
+  ~ ================================================================================
+  ~ Update Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+  ~ ================================================================================
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  ~ ============LICENSE_END=======================================================
+  ~
+  -->
+
+<blueprint xmlns:odl="http://opendaylight.org/xmlns/blueprint/v1.0.0"
+           xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0" odl:use-default-for-reference-types="true">
+
+    <reference id="netconfNetworkElementService"
+               availability="mandatory" activation="eager"
+               interface="org.onap.ccsdk.features.sdnr.wt.devicemanager.service.NetconfNetworkElementService"/>
+
+    <bean id="provider"
+          class="org.onap.ccsdk.features.sdnr.wt.devicemanager.openroadm.impl.DeviceManagerOpenroadmImpl"
+          init-method="init" destroy-method="close">
+        <property name="netconfNetworkElementService" ref="netconfNetworkElementService"/>
+    </bean>
+</blueprint>
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/resources/version.properties b/sdnr/wt/devicemanager-openroadm/provider/src/main/resources/version.properties
new file mode 100644
index 000000000..6638c04f9
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/resources/version.properties
@@ -0,0 +1,24 @@
+#
+# ============LICENSE_START=======================================================
+# ONAP : ccsdk features
+# ================================================================================
+# Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============LICENSE_END=======================================================
+#
+#
+
+# Properties filled in by maven during build process
+version = ${project.version}
+build = ${buildtime}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/iana-hardware.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/iana-hardware.yang
new file mode 100755
index 000000000..52bcaf3a0
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/iana-hardware.yang
@@ -0,0 +1,180 @@
+module iana-hardware {
+yang-version 1.1;
+namespace "urn:ietf:params:xml:ns:yang:iana-hardware";
+prefix ianahw;
+
+organization "IANA";
+contact
+  "        Internet Assigned Numbers Authority
+   Postal: ICANN
+           12025 Waterfront Drive, Suite 300
+           Los Angeles, CA  90094-2536
+           United States of America
+   Tel:    +1 310 301 5800
+   E-Mail: iana@iana.org>";
+
+description
+  "IANA-defined identities for hardware class.
+   The latest revision of this YANG module can be obtained from
+   the IANA website.
+   Requests for new values should be made to IANA via
+   email (iana@iana.org).
+   Copyright (c) 2018 IETF Trust and the persons identified as
+   authors of the code.  All rights reserved.
+   Redistribution and use in source and binary forms, with or
+   without modification, is permitted pursuant to, and subject
+   to the license terms contained in, the Simplified BSD License
+   set forth in Section 4.c of the IETF Trust's Legal Provisions
+   Relating to IETF Documents
+   (https://trustee.ietf.org/license-info).
+   The initial version of this YANG module is part of RFC 8348;
+   see the RFC itself for full legal notices.";
+reference
+  "https://www.iana.org/assignments/yang-parameters";
+
+revision 2018-03-13 {
+  description
+    "Initial revision.";
+  reference
+    "RFC 8348: A YANG Data Model for Hardware Management";
+}
+
+/*
+ * Identities
+ */
+
+identity hardware-class {
+  description
+    "This identity is the base for all hardware class
+     identifiers.";
+}
+
+identity unknown {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is unknown
+     to the server.";
+}
+
+identity chassis {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is an
+     overall container for networking equipment.  Any class of
+     physical component, except a stack, may be contained within a
+     chassis; a chassis may only be contained within a stack.";
+}
+
+identity backplane {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of device for aggregating and forwarding networking traffic,
+     such as a shared backplane in a modular ethernet switch.  Note
+     that an implementation may model a backplane as a single
+     physical component, which is actually implemented as multiple
+     discrete physical components (within a chassis or stack).";
+}
+
+identity container {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is capable
+     of containing one or more removable physical entities,
+     possibly of different types.  For example, each (empty or
+     full) slot in a chassis will be modeled as a container.  Note
+     that all removable physical components should be modeled
+     within a container component, such as field-replaceable
+     modules, fans, or power supplies.  Note that all known
+     containers should be modeled by the agent, including empty
+     containers.";
+}
+
+identity power-supply {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is a
+     power-supplying component.";
+}
+
+identity fan {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is a fan or
+     other heat-reduction component.";
+}
+
+identity sensor {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of sensor, such as a temperature sensor within a router
+     chassis.";
+}
+
+identity module {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of self-contained sub-system.  If a module component is
+     removable, then it should be modeled within a container
+     component; otherwise, it should be modeled directly within
+     another physical component (e.g., a chassis or another
+     module).";
+}
+
+identity port {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of networking port capable of receiving and/or transmitting
+     networking traffic.";
+}
+
+identity stack {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of super-container (possibly virtual) intended to group
+     together multiple chassis entities.  A stack may be realized
+     by a virtual cable, a real interconnect cable attached to
+     multiple chassis, or multiple interconnect cables.  A stack
+     should not be modeled within any other physical components,
+     but a stack may be contained within another stack.  Only
+     chassis components should be contained within a stack.";
+}
+
+identity cpu {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of central processing unit.";
+}
+
+identity energy-object {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of energy object, i.e., it is a piece of equipment that is
+     part of or attached to a communications network that is
+     monitored, it is controlled, or it aids in the management of
+     another device for Energy Management.";
+}
+
+identity battery {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of battery.";
+}
+
+identity storage-drive {
+  base ianahw:hardware-class;
+  description
+    "This identity is applicable if the hardware class is some sort
+     of component with data storage capability as its main
+     functionality, e.g., hard disk drive (HDD), solid-state device
+     (SSD), solid-state hybrid drive (SSHD), object storage device
+     (OSD), or other.";
+}
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-alarms.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-alarms.yang
new file mode 100644
index 000000000..856320b64
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-alarms.yang
@@ -0,0 +1,1526 @@
+module ietf-alarms {
+  yang-version 1.1;
+  namespace "urn:ietf:params:xml:ns:yang:ietf-alarms";
+  prefix al;
+
+  import ietf-yang-types {
+    prefix yang;
+    reference
+      "RFC 6991: Common YANG Data Types.";
+  }
+
+  organization
+    "IETF CCAMP Working Group";
+  contact
+    "WG Web:   <https://trac.ietf.org/trac/ccamp>
+     WG List:  <mailto:ccamp@ietf.org>
+
+     Editor:   Stefan Vallin
+               <mailto:stefan@wallan.se>
+
+     Editor:   Martin Bjorklund
+               <mailto:mbj@tail-f.com>";
+  description
+    "This module defines an interface for managing alarms.  Main
+     inputs to the module design are the 3GPP Alarm Integration
+     Reference Point (IRP), ITU-T X.733, and ANSI/ISA-18.2 alarm
+     standards.
+     Main features of this module include:
+
+       * Alarm list:
+                 A list of all alarms.  Cleared alarms stay in
+                 the list until explicitly purged.
+
+       * Operator actions on alarms:
+                 Acknowledging and closing alarms.
+
+       * Administrative actions on alarms:
+                 Purging alarms from the list according to specific
+                 criteria.
+
+       * Alarm inventory:
+                 A management application can read all
+                 alarm types implemented by the system.
+
+       * Alarm shelving:
+                 Shelving (blocking) alarms according
+                 to specific criteria.
+
+       * Alarm profiles:
+                 A management system can attach further
+                 information to alarm types, for example,
+                 overriding system-default severity
+                 levels.
+
+     This module uses a stateful view on alarms.  An alarm is a state
+     for a specific resource (note that an alarm is not a
+     notification).  An alarm type is a possible alarm state for a
+     resource.  For example, the tuple:
+
+       ('link-alarm', 'GigabitEthernet0/25')
+
+     is an alarm of type 'link-alarm' on the resource
+     'GigabitEthernet0/25'.
+
+     Alarm types are identified using YANG identities and an optional
+     string-based qualifier.  The string-based qualifier allows for
+     dynamic extension of the statically defined alarm types.  Alarm
+     types identify a possible alarm state and not the individual
+     notifications.  For example, the traditional 'link-down' and
+     'link-up' notifications are two notifications referring to the
+     same alarm type 'link-alarm'.
+
+     With this design, there is no ambiguity about how alarm and
+     alarm clear correlation should be performed; notifications that
+     report the same resource and alarm type are considered updates
+     of the same alarm, e.g., clearing an active alarm or changing
+     the severity of an alarm.  The instrumentation can update the
+     severity and alarm text on an existing alarm.  The above alarm
+     example can therefore look like the following:
+
+       (('link-alarm', 'GigabitEthernet0/25'),
+        warning,
+        'interface down while interface admin state is up')
+
+     There is a clear separation between updates on the alarm from
+     the underlying resource, like clear, and updates from an
+     operator, like acknowledging or closing an alarm:
+
+       (('link-alarm', 'GigabitEthernet0/25'),
+        warning,
+        'interface down while interface admin state is up',
+        cleared,
+        closed)
+
+     Administrative actions like removing closed alarms older than a
+     given time is supported.
+
+     This YANG module does not define how the underlying
+     instrumentation detects and clears the specific alarms.  That
+     belongs to the Standards Development Organization (SDO) or
+     enterprise that owns that specific technology.
+
+     The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
+     NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED',
+     'MAY', and 'OPTIONAL' in this document are to be interpreted as
+     described in BCP 14 (RFC 2119) (RFC 8174) when, and only when,
+     they appear in all capitals, as shown here.
+
+     Copyright (c) 2019 IETF Trust and the persons identified as
+     authors of the code.  All rights reserved.
+
+     Redistribution and use in source and binary forms, with or
+     without modification, is permitted pursuant to, and subject to
+     the license terms contained in, the Simplified BSD License set
+     forth in Section 4.c of the IETF Trust's Legal Provisions
+     Relating to IETF Documents
+     (https://trustee.ietf.org/license-info).
+
+     This version of this YANG module is part of RFC 8632; see
+     the RFC itself for full legal notices.";
+
+  revision 2019-09-11 {
+    description
+      "Initial revision.";
+    reference
+      "RFC 8632: A YANG Data Model for Alarm Management";
+  }
+
+  /*
+   * Features
+   */
+
+  feature operator-actions {
+    description
+      "This feature indicates that the system supports operator
+       states on alarms.";
+  }
+
+  feature alarm-shelving {
+    description
+      "This feature indicates that the system supports shelving
+       (blocking) alarms.
+
+       Alarm shelving may have an impact on server processing
+       resources in order to match alarms against shelf
+       criteria.";
+  }
+
+  feature alarm-history {
+    description
+      "This feature indicates that the server maintains a history
+       of state changes for each alarm.  For example, if an alarm
+       toggles between cleared and active 10 times, these state
+       changes are present in a separate list in the alarm.
+
+       Keeping the alarm history may have an impact on server
+       memory resources.";
+  }
+
+  feature alarm-summary {
+    description
+      "This feature indicates that the server summarizes the number
+       of alarms per severity and operator state.";
+  }
+
+  feature alarm-profile {
+    description
+      "The system enables clients to configure further information
+       to each alarm type.";
+  }
+
+  feature severity-assignment {
+    description
+      "The system supports configurable alarm severity levels.";
+    reference
+      "ITU-T Recommendation M.3100:
+         Generic network information model
+       ITU-T Recommendation M.3160:
+         Generic, protocol-neutral management information model";
+  }
+
+  feature root-cause-analysis {
+    description
+      "The system supports identifying candidate root-cause
+       resources for an alarm, for example, a disk partition
+       root cause for a logger failure alarm.";
+  }
+
+  feature service-impact-analysis {
+    description
+      "The system supports identifying candidate-impacted
+       resources for an alarm, for example, an interface state change
+       resulting in a link alarm, which can refer to a link as being
+       impacted.";
+  }
+
+  feature alarm-correlation {
+    description
+      "The system supports correlating/grouping alarms
+       that belong together.";
+  }
+
+  /*
+   * Identities
+   */
+
+  identity alarm-type-id {
+    description
+      "Base identity for alarm types.  A unique identification of
+       the alarm, not including the resource.  Different resources
+       can share alarm types.  If the resource reports the same
+       alarm type, it is considered to be the same alarm.  The alarm
+       type is a simplification of the different X.733 and 3GPP Alarm
+       IRP correlation mechanisms, and it allows for
+       hierarchical extensions.
+
+       A string-based qualifier can be used in addition to the
+       identity in order to have different alarm types based on
+       information not known at design time, such as values in
+       textual SNMP Notification varbinds.
+
+       Standards and vendors can define sub-identities to clearly
+       identify specific alarm types.
+
+       This identity is abstract and MUST NOT be used for alarms.";
+  }
+
+  /*
+   * Common types
+   */
+
+  typedef resource {
+    type union {
+      type instance-identifier {
+        require-instance false;
+      }
+      type yang:object-identifier;
+      type string;
+      type yang:uuid;
+    }
+    description
+      "This is an identification of the alarming resource, such as an
+       interface.  It should be as fine-grained as possible to both
+       guide the operator and guarantee uniqueness of the alarms.
+
+       If the alarming resource is modeled in YANG, this type will
+       be an instance-identifier.
+
+       If the resource is an SNMP object, the type will be an
+       'object-identifier'.
+
+       If the resource is anything else, for example, a distinguished
+       name or a Common Information Model (CIM) path, this type will
+       be a string.
+
+       If the alarming object is identified by a Universally Unique
+       Identifier (UUID), use the uuid type.  Be cautious when using
+       this type, since a UUID is hard to use for an operator.
+
+       If the server supports several models, the precedence should
+       be in the order as given in the union definition.";
+  }
+
+  typedef resource-match {
+    type union {
+      type yang:xpath1.0;
+      type yang:object-identifier;
+      type string;
+    }
+    description
+      "This type is used to match resources of type 'resource'.
+       Since the type 'resource' is a union of different types, the
+       'resource-match' type is also a union of corresponding types.
+
+       If the type is given as an XPath 1.0 expression, a resource
+       of type 'instance-identifier' matches if the instance is part
+       of the node set that is the result of evaluating the XPath 1.0
+       expression.  For example, the XPath 1.0 expression:
+
+        /ietf-interfaces:interfaces/ietf-interfaces:interface
+            [ietf-interfaces:type='ianaift:ethernetCsmacd']
+
+       would match the resource instance-identifier:
+
+        /if:interfaces/if:interface[if:name='eth1'],
+
+       assuming that the interface 'eth1' is of type
+       'ianaift:ethernetCsmacd'.
+
+       If the type is given as an object identifier, a resource of
+       type 'object-identifier' matches if the match object
+       identifier is a prefix of the resource's object identifier.
+       For example, the value:
+
+        1.3.6.1.2.1.2.2
+
+       would match the resource object identifier:
+
+        1.3.6.1.2.1.2.2.1.1.5
+
+       If the type is given as an UUID or a string, it is interpreted
+       as an XML Schema regular expression, which matches a resource
+       of type 'yang:uuid' or 'string' if the given regular
+       expression matches the resource string.
+
+       If the type is given as an XPath expression, it is evaluated
+       in the following XPath context:
+
+         o  The set of namespace declarations is the set of prefix
+            and namespace pairs for all YANG modules implemented by
+            the server, where the prefix is the YANG module name and
+            the namespace is as defined by the 'namespace' statement
+            in the YANG module.
+
+            If a leaf of this type is encoded in XML, all namespace
+            declarations in scope on the leaf element are added to
+            the set of namespace declarations.  If a prefix found in
+            the XML is already present in the set of namespace
+            declarations, the namespace in the XML is used.
+
+         o  The set of variable bindings is empty.
+
+         o  The function library is the core function library, and
+            the functions are defined in Section 10 of RFC 7950.
+
+         o  The context node is the root node in the data tree.";
+    reference
+      "XML Schema Part 2: Datatypes Second Edition,
+         World Wide Web Consortium Recommendation
+         REC-xmlschema-2-20041028";
+  }
+
+  typedef alarm-text {
+    type string;
+    description
+      "The string used to inform operators about the alarm.  This
+       MUST contain enough information for an operator to be able to
+       understand the problem and how to resolve it.  If this string
+       contains structure, this format should be clearly documented
+       for programs to be able to parse that information.";
+  }
+
+  typedef severity {
+    type enumeration {
+      enum indeterminate {
+        value 2;
+        description
+          "Indicates that the severity level could not be
+           determined.  This level SHOULD be avoided.";
+      }
+      enum warning {
+        value 3;
+        description
+          "The 'warning' severity level indicates the detection of a
+           potential or impending service-affecting fault, before any
+           significant effects have been felt.  Action should be
+           taken to further diagnose (if necessary) and correct the
+           problem in order to prevent it from becoming a more
+           serious service-affecting fault.";
+      }
+      enum minor {
+        value 4;
+        description
+          "The 'minor' severity level indicates the existence of a
+           non-service-affecting fault condition and that corrective
+           action should be taken in order to prevent a more serious
+           (for example, service-affecting) fault.  Such a severity
+           can be reported, for example, when the detected alarm
+           condition is not currently degrading the capacity of the
+           resource.";
+      }
+      enum major {
+        value 5;
+        description
+          "The 'major' severity level indicates that a service-
+           affecting condition has developed and an urgent corrective
+           action is required.  Such a severity can be reported, for
+           example, when there is a severe degradation in the
+           capability of the resource and its full capability must be
+           restored.";
+      }
+      enum critical {
+        value 6;
+        description
+          "The 'critical' severity level indicates that a service-
+           affecting condition has occurred and an immediate
+           corrective action is required.  Such a severity can be
+           reported, for example, when a resource becomes totally out
+           of service and its capability must be restored.";
+      }
+    }
+    description
+      "The severity level of the alarm.  Note well that the value
+       'clear' is not included.  Whether or not an alarm is cleared
+       is a separate boolean flag.";
+    reference
+      "ITU-T Recommendation X.733: Information Technology
+         - Open Systems Interconnection
+         - System Management: Alarm Reporting Function";
+  }
+
+  typedef severity-with-clear {
+    type union {
+      type enumeration {
+        enum cleared {
+          value 1;
+          description
+            "The alarm is cleared by the instrumentation.";
+        }
+      }
+      type severity;
+    }
+    description
+      "The severity level of the alarm including clear.  This is used
+       only in notifications reporting state changes for an alarm.";
+  }
+
+  typedef writable-operator-state {
+    type enumeration {
+      enum none {
+        value 1;
+        description
+          "The alarm is not being taken care of.";
+      }
+      enum ack {
+        value 2;
+        description
+          "The alarm is being taken care of.  Corrective action not
+           taken yet or has failed";
+      }
+      enum closed {
+        value 3;
+        description
+          "Corrective action taken successfully.";
+      }
+    }
+    description
+      "Operator states on an alarm.  The 'closed' state indicates
+       that an operator considers the alarm being resolved.  This is
+       separate from the alarm's 'is-cleared' leaf.";
+  }
+
+  typedef operator-state {
+    type union {
+      type writable-operator-state;
+      type enumeration {
+        enum shelved {
+          value 4;
+          description
+            "The alarm is shelved.  Alarms in /alarms/shelved-alarms/
+             MUST be assigned this operator state by the server as
+             the last entry in the 'operator-state-change' list.  The
+             text for that entry SHOULD include the shelf name.";
+        }
+        enum un-shelved {
+          value 5;
+          description
+            "The alarm is moved back to 'alarm-list' from a shelf.
+             Alarms that are moved from /alarms/shelved-alarms/ to
+             /alarms/alarm-list MUST be assigned this state by the
+             server as the last entry in the 'operator-state-change'
+             list.  The text for that entry SHOULD include the shelf
+             name.";
+        }
+      }
+    }
+    description
+      "Operator states on an alarm.  The 'closed' state indicates
+       that an operator considers the alarm being resolved.  This is
+       separate from the alarm's 'is-cleared' leaf.";
+  }
+
+  /* Alarm type */
+
+  typedef alarm-type-id {
+    type identityref {
+      base alarm-type-id;
+    }
+    description
+      "Identifies an alarm type.  The description of the alarm type
+       id MUST indicate whether or not the alarm type is abstract.
+       An abstract alarm type is used as a base for other alarm type
+       ids and will not be used as a value for an alarm or be present
+       in the alarm inventory.";
+  }
+
+  typedef alarm-type-qualifier {
+    type string;
+    description
+      "If an alarm type cannot be fully specified at design time by
+       'alarm-type-id', this string qualifier is used in addition to
+       fully define a unique alarm type.
+
+       The definition of alarm qualifiers is considered to be part of
+       the instrumentation and is out of scope for this module.  An
+       empty string is used when this is part of a key.";
+  }
+
+  /*
+   * Groupings
+   */
+
+  grouping common-alarm-parameters {
+    description
+      "Common parameters for an alarm.
+
+       This grouping is used both in the alarm list and in the
+       notification representing an alarm-state change.";
+    leaf resource {
+      type resource;
+      mandatory true;
+      description
+        "The alarming resource.  See also 'alt-resource'.  This could
+         be, for example, a reference to the alarming interface";
+    }
+    leaf alarm-type-id {
+      type alarm-type-id;
+      mandatory true;
+      description
+        "This leaf and the leaf 'alarm-type-qualifier' together
+         provide a unique identification of the alarm type.";
+    }
+    leaf alarm-type-qualifier {
+      type alarm-type-qualifier;
+      description
+        "This leaf is used when the 'alarm-type-id' leaf cannot
+         uniquely identify the alarm type.  Normally, this is not the
+         case, and this leaf is the empty string.";
+    }
+    leaf-list alt-resource {
+      type resource;
+      description
+        "Used if the alarming resource is available over other
+         interfaces.  This field can contain SNMP OIDs, CIM paths, or
+         3GPP distinguished names, for example.";
+    }
+    list related-alarm {
+      if-feature "alarm-correlation";
+      key "resource alarm-type-id alarm-type-qualifier";
+      description
+        "References to related alarms.  Note that the related alarm
+         might have been purged from the alarm list.";
+      leaf resource {
+        type leafref {
+          path "/alarms/alarm-list/alarm/resource";
+          require-instance false;
+        }
+        description
+          "The alarming resource for the related alarm.";
+      }
+      leaf alarm-type-id {
+        type leafref {
+          path "/alarms/alarm-list/alarm"
+             + "[resource=current()/../resource]"
+             + "/alarm-type-id";
+          require-instance false;
+        }
+        description
+          "The alarm type identifier for the related alarm.";
+      }
+      leaf alarm-type-qualifier {
+        type leafref {
+          path "/alarms/alarm-list/alarm"
+             + "[resource=current()/../resource]"
+             + "[alarm-type-id=current()/../alarm-type-id]"
+             + "/alarm-type-qualifier";
+          require-instance false;
+        }
+        description
+          "The alarm qualifier for the related alarm.";
+      }
+    }
+    leaf-list impacted-resource {
+      if-feature "service-impact-analysis";
+      type resource;
+      description
+        "Resources that might be affected by this alarm.  If the
+         system creates an alarm on a resource and also has a mapping
+         to other resources that might be impacted, these resources
+         can be listed in this leaf-list.  In this way, the system
+         can create one alarm instead of several.  For example, if an
+         interface has an alarm, the 'impacted-resource' can
+         reference the aggregated port channels.";
+    }
+    leaf-list root-cause-resource {
+      if-feature "root-cause-analysis";
+      type resource;
+      description
+        "Resources that are candidates for causing the alarm.  If the
+         system has a mechanism to understand the candidate root
+         causes of an alarm, this leaf-list can be used to list the
+         root-cause candidate resources.  In this way, the system can
+         create one alarm instead of several.  An example might be a
+         logging system (alarm resource) that fails; the alarm can
+         reference the file system in the 'root-cause-resource'
+         leaf-list.  Note that the intended use is not to also send
+         an alarm with the 'root-cause-resource' as an alarming
+         resource.  The 'root-cause-resource' leaf-list is a hint and
+         should not also generate an alarm for the same problem.";
+    }
+  }
+
+  grouping alarm-state-change-parameters {
+    description
+      "Parameters for an alarm-state change.
+
+       This grouping is used both in the alarm list's status-change
+       list and in the notification representing an alarm-state
+       change.";
+    leaf time {
+      type yang:date-and-time;
+      mandatory true;
+      description
+        "The time the status of the alarm changed.  The value
+         represents the time the real alarm-state change appeared in
+         the resource and not when it was added to the alarm
+         list.  The /alarm-list/alarm/last-changed MUST be set to the
+         same value.";
+    }
+    leaf perceived-severity {
+      type severity-with-clear;
+      mandatory true;
+      description
+        "The severity of the alarm as defined by X.733.  Note that
+         this may not be the original severity since the alarm may
+         have changed severity.";
+      reference
+        "ITU-T Recommendation X.733: Information Technology
+           - Open Systems Interconnection
+           - System Management: Alarm Reporting Function";
+    }
+    leaf alarm-text {
+      type alarm-text;
+      mandatory true;
+      description
+        "A user-friendly text describing the alarm-state change.";
+      reference
+        "ITU-T Recommendation X.733: Information Technology
+           - Open Systems Interconnection
+           - System Management: Alarm Reporting Function";
+    }
+  }
+
+  grouping operator-parameters {
+    description
+      "This grouping defines parameters that can be changed by an
+       operator.";
+    leaf time {
+      type yang:date-and-time;
+      mandatory true;
+      description
+        "Timestamp for operator action on the alarm.";
+    }
+    leaf operator {
+      type string;
+      mandatory true;
+      description
+        "The name of the operator that has acted on this alarm.";
+    }
+    leaf state {
+      type operator-state;
+      mandatory true;
+      description
+        "The operator's view of the alarm state.";
+    }
+    leaf text {
+      type string;
+      description
+        "Additional optional textual information provided by the
+         operator.";
+    }
+  }
+
+  grouping resource-alarm-parameters {
+    description
+      "Alarm parameters that originate from the resource view.";
+    leaf is-cleared {
+      type boolean;
+      mandatory true;
+      description
+        "Indicates the current clearance state of the alarm.  An
+         alarm might toggle from active alarm to cleared alarm and
+         back to active again.";
+    }
+    leaf last-raised {
+      type yang:date-and-time;
+      mandatory true;
+      description
+        "An alarm may change severity level and toggle between
+         active and cleared during its lifetime.  This leaf indicates
+         the last time it was raised ('is-cleared' = 'false').";
+    }
+    leaf last-changed {
+      type yang:date-and-time;
+      mandatory true;
+      description
+        "A timestamp when the 'status-change' or
+         'operator-state-change' list was last changed.";
+    }
+    leaf perceived-severity {
+      type severity;
+      mandatory true;
+      description
+        "The last severity of the alarm.
+
+         If an alarm was raised with severity 'warning' but later
+         changed to 'major', this leaf will show 'major'.";
+    }
+    leaf alarm-text {
+      type alarm-text;
+      mandatory true;
+      description
+        "The last reported alarm text.  This text should contain
+         information for an operator to be able to understand the
+         problem and how to resolve it.";
+    }
+    list status-change {
+      if-feature "alarm-history";
+      key "time";
+      min-elements 1;
+      description
+        "A list of status-change events for this alarm.
+
+         The entry with latest timestamp in this list MUST
+         correspond to the leafs 'is-cleared', 'perceived-severity',
+         and 'alarm-text' for the alarm.
+
+         This list is ordered according to the timestamps of alarm
+         state changes.  The first item corresponds to the latest
+         state change.
+
+         The following state changes create an entry in this
+         list:
+         - changed severity (warning, minor, major, critical)
+         - clearance status; this also updates the 'is-cleared'
+           leaf
+         - alarm-text update";
+      uses alarm-state-change-parameters;
+    }
+  }
+
+  grouping filter-input {
+    description
+      "Grouping to specify a filter construct on alarm information.";
+    leaf alarm-clearance-status {
+      type enumeration {
+        enum any {
+          description
+            "Ignore alarm-clearance status.";
+        }
+        enum cleared {
+          description
+            "Filter cleared alarms.";
+        }
+        enum not-cleared {
+          description
+            "Filter not-cleared alarms.";
+        }
+      }
+      mandatory true;
+      description
+        "The clearance status of the alarm.";
+    }
+    container older-than {
+      presence "Age specification";
+      description
+        "Matches the 'last-status-change' leaf in the alarm.";
+      choice age-spec {
+        description
+          "Filter using date and time age.";
+        case seconds {
+          leaf seconds {
+            type uint16;
+            description
+              "Age expressed in seconds.";
+          }
+        }
+        case minutes {
+          leaf minutes {
+            type uint16;
+            description
+              "Age expressed in minutes.";
+          }
+        }
+        case hours {
+          leaf hours {
+            type uint16;
+            description
+              "Age expressed in hours.";
+          }
+        }
+        case days {
+          leaf days {
+            type uint16;
+            description
+              "Age expressed in days.";
+          }
+        }
+        case weeks {
+          leaf weeks {
+            type uint16;
+            description
+              "Age expressed in weeks.";
+          }
+        }
+      }
+    }
+    container severity {
+      presence "Severity filter";
+      choice sev-spec {
+        description
+          "Filter based on severity level.";
+        leaf below {
+          type severity;
+          description
+            "Severity less than this leaf.";
+        }
+        leaf is {
+          type severity;
+          description
+            "Severity level equal to this leaf.";
+        }
+        leaf above {
+          type severity;
+          description
+            "Severity level higher than this leaf.";
+        }
+      }
+      description
+        "Filter based on severity.";
+    }
+    container operator-state-filter {
+      if-feature "operator-actions";
+      presence "Operator state filter";
+      leaf state {
+        type operator-state;
+        description
+          "Filter on operator state.";
+      }
+      leaf user {
+        type string;
+        description
+          "Filter based on which operator.";
+      }
+      description
+        "Filter based on operator state.";
+    }
+  }
+
+  /*
+   * The /alarms data tree
+   */
+
+  container alarms {
+    description
+      "The top container for this module.";
+    container control {
+      description
+        "Configuration to control the alarm behavior.";
+      leaf max-alarm-status-changes {
+        type union {
+          type uint16;
+          type enumeration {
+            enum infinite {
+              description
+                "The status-change entries are accumulated
+                 infinitely.";
+            }
+          }
+        }
+        default "32";
+        description
+          "The 'status-change' entries are kept in a circular list
+           per alarm.  When this number is exceeded, the oldest
+           status change entry is automatically removed.  If the
+           value is 'infinite', the status-change entries are
+           accumulated infinitely.";
+      }
+      leaf notify-status-changes {
+        type enumeration {
+          enum all-state-changes {
+            description
+              "Send notifications for all status changes.";
+          }
+          enum raise-and-clear {
+            description
+              "Send notifications only for raise, clear, and
+               re-raise.  Notifications for severity-level changes or
+               alarm-text changes are not sent.";
+          }
+          enum severity-level {
+            description
+              "Only send notifications for alarm-state changes
+               crossing the level specified in
+               'notify-severity-level'.  Always send clear
+               notifications.";
+          }
+        }
+        must '. != "severity-level" or ../notify-severity-level' {
+          description
+            "When notify-status-changes is 'severity-level', a value
+             must be given for 'notify-severity-level'.";
+        }
+        default "all-state-changes";
+        description
+          "This leaf controls the notifications sent for alarm status
+           updates.  There are three options:
+
+           1.  Notifications are sent for all updates, severity-level
+               changes, and alarm-text changes.
+
+           2.  Notifications are only sent for alarm raise and clear.
+
+           3.  Notifications are sent for status changes equal to or
+               above the specified severity level.  Clear
+               notifications shall always be sent.  Notifications
+               shall also be sent for state changes that make an
+               alarm less severe than the specified level.
+
+           For example, in option 3, assume that the severity level
+           is set to major and that the alarm has the following state
+           changes:
+
+           [(Time, severity, clear)]:
+           [(T1, major, -), (T2, minor, -), (T3, warning, -),
+            (T4, minor, -), (T5, major, -), (T6, critical, -),
+            (T7, major.  -), (T8, major, clear)]
+
+           In that case, notifications will be sent at times
+           T1, T2, T5, T6, T7, and T8.";
+      }
+      leaf notify-severity-level {
+        when '../notify-status-changes = "severity-level"';
+        type severity;
+        description
+          "Only send notifications for alarm-state changes crossing
+           the specified level.  Always send clear notifications.";
+      }
+      container alarm-shelving {
+        if-feature "alarm-shelving";
+        description
+          "The 'alarm-shelving/shelf' list is used to shelve
+           (block/filter) alarms.  The conditions in the shelf
+           criteria are logically ANDed.  The first matching shelf is
+           used, and an alarm is shelved only for this first match.
+           Matching alarms MUST appear in the
+           /alarms/shelved-alarms/shelved-alarm list, and
+           non-matching /alarms MUST appear in the
+           /alarms/alarm-list/alarm list.  The server does not send
+           any notifications for shelved alarms.
+
+           The server MUST maintain states (e.g., severity
+           changes) for the shelved alarms.
+
+           Alarms that match the criteria shall have an
+           operator state 'shelved'.  When the shelf
+           configuration removes an alarm from the shelf, the server
+           shall add the operator state 'un-shelved'.";
+        list shelf {
+          key "name";
+          //ordered-by user;
+          leaf name {
+            type string;
+            description
+              "An arbitrary name for the alarm shelf.";
+          }
+          description
+            "Each entry defines the criteria for shelving alarms.
+             Criteria are ANDed.  If no criteria are specified,
+             all alarms will be shelved.";
+          leaf-list resource {
+            type resource-match;
+            description
+              "Shelve alarms for matching resources.";
+          }
+          list alarm-type {
+            key "alarm-type-id alarm-type-qualifier-match";
+            description
+              "Any alarm matching the combined criteria of
+               'alarm-type-id' and 'alarm-type-qualifier-match'
+               MUST be matched.";
+            leaf alarm-type-id {
+              type alarm-type-id;
+              description
+                "Shelve all alarms that have an 'alarm-type-id' that
+                 is equal to or derived from the given
+                 'alarm-type-id'.";
+            }
+            leaf alarm-type-qualifier-match {
+              type string;
+              description
+                "An XML Schema regular expression that is used to
+                 match an alarm type qualifier.  Shelve all alarms
+                 that match this regular expression for the alarm
+                 type qualifier.";
+              reference
+                "XML Schema Part 2: Datatypes Second Edition,
+                   World Wide Web Consortium Recommendation
+                   REC-xmlschema-2-20041028";
+            }
+          }
+          leaf description {
+            type string;
+            description
+              "An optional textual description of the shelf.  This
+               description should include the reason for shelving
+               these alarms.";
+          }
+        }
+      }
+    }
+    container alarm-inventory {
+      config false;
+      description
+        "The 'alarm-inventory/alarm-type' list contains all possible
+         alarm types for the system.
+
+         If the system knows for which resources a specific alarm
+         type can appear, it is also identified in the inventory.
+         The list also tells if each alarm type has a corresponding
+         clear state.  The inventory shall only contain concrete
+         alarm types.
+
+         The alarm inventory MUST be updated by the system when new
+         alarms can appear.  This can be the case when installing new
+         software modules or inserting new card types.  A
+         notification 'alarm-inventory-changed' is sent when the
+         inventory is changed.";
+      list alarm-type {
+        key "alarm-type-id alarm-type-qualifier";
+        description
+          "An entry in this list defines a possible alarm.";
+        leaf alarm-type-id {
+          type alarm-type-id;
+          description
+            "The statically defined alarm type identifier for this
+             possible alarm.";
+        }
+        leaf alarm-type-qualifier {
+          type alarm-type-qualifier;
+          description
+            "The optionally dynamically defined alarm type identifier
+             for this possible alarm.";
+        }
+        leaf-list resource {
+          type resource-match;
+          description
+            "Optionally, specifies for which resources the alarm type
+             is valid.";
+        }
+        leaf will-clear {
+          type boolean;
+          mandatory true;
+          description
+            "This leaf tells the operator if the alarm will be
+             cleared when the correct corrective action has been
+             taken.  Implementations SHOULD strive for detecting the
+             cleared state for all alarm types.
+
+             If this leaf is 'true', the operator can monitor the
+             alarm until it becomes cleared after the corrective
+             action has been taken.
+
+             If this leaf is 'false', the operator needs to validate
+             that the alarm is no longer active using other
+             mechanisms.  Alarms can lack a corresponding clear due
+             to missing instrumentation or no logical
+             corresponding clear state.";
+        }
+        leaf-list severity-level {
+          type severity;
+          description
+            "This leaf-list indicates the possible severity levels of
+             this alarm type.  Note well that 'clear' is not part of
+             the severity type.  In general, the severity level
+             should be defined by the instrumentation based on the
+             dynamic state, rather than being defined statically by
+             the alarm type, in order to provide a relevant severity
+             level based on dynamic state and context.  However, most
+             alarm types have a defined set of possible severity
+             levels, and this should be provided here.";
+        }
+        leaf description {
+          type string;
+          mandatory true;
+          description
+            "A description of the possible alarm.  It SHOULD include
+             information on possible underlying root causes and
+             corrective actions.";
+        }
+      }
+    }
+    container summary {
+      if-feature "alarm-summary";
+      config false;
+      description
+        "This container gives a summary of the number of alarms.";
+      list alarm-summary {
+        key "severity";
+        description
+          "A global summary of all alarms in the system.  The summary
+           does not include shelved alarms.";
+        leaf severity {
+          type severity;
+          description
+            "Alarm summary for this severity level.";
+        }
+        leaf total {
+          type yang:gauge32;
+          description
+            "Total number of alarms of this severity level.";
+        }
+        leaf not-cleared {
+          type yang:gauge32;
+          description
+            "Total number of alarms of this severity level
+             that are not cleared.";
+        }
+        leaf cleared {
+          type yang:gauge32;
+          description
+            "For this severity level, the number of alarms that are
+             cleared.";
+        }
+        leaf cleared-not-closed {
+          if-feature "operator-actions";
+          type yang:gauge32;
+          description
+            "For this severity level, the number of alarms that are
+             cleared but not closed.";
+        }
+        leaf cleared-closed {
+          if-feature "operator-actions";
+          type yang:gauge32;
+          description
+            "For this severity level, the number of alarms that are
+             cleared and closed.";
+        }
+        leaf not-cleared-closed {
+          if-feature "operator-actions";
+          type yang:gauge32;
+          description
+            "For this severity level, the number of alarms that are
+             not cleared but closed.";
+        }
+        leaf not-cleared-not-closed {
+          if-feature "operator-actions";
+          type yang:gauge32;
+          description
+            "For this severity level, the number of alarms that are
+             not cleared and not closed.";
+        }
+      }
+      leaf shelves-active {
+        if-feature "alarm-shelving";
+        type empty;
+        description
+          "This is a hint to the operator that there are active
+           alarm shelves.  This leaf MUST exist if the
+           /alarms/shelved-alarms/number-of-shelved-alarms is > 0.";
+      }
+    }
+    container alarm-list {
+      config false;
+      description
+        "The alarms in the system.";
+      leaf number-of-alarms {
+        type yang:gauge32;
+        description
+          "This object shows the total number of
+           alarms in the system, i.e., the total number
+           of entries in the alarm list.";
+      }
+      leaf last-changed {
+        type yang:date-and-time;
+        description
+          "A timestamp when the alarm list was last
+           changed.  The value can be used by a manager to
+           initiate an alarm resynchronization procedure.";
+      }
+      list alarm {
+        key "resource alarm-type-id alarm-type-qualifier";
+        description
+          "The list of alarms.  Each entry in the list holds one
+           alarm for a given alarm type and resource.  An alarm can
+           be updated from the underlying resource or by the user.
+           The following leafs are maintained by the resource:
+           'is-cleared', 'last-change', 'perceived-severity', and
+           'alarm-text'.  An operator can change 'operator-state' and
+           'operator-text'.
+
+           Entries appear in the alarm list the first time an alarm
+           becomes active for a given alarm type and resource.
+           Entries do not get deleted when the alarm is cleared.
+           Clear status is represented as a boolean flag.
+
+           Alarm entries are removed, i.e., purged, from the list by
+           an explicit purge action.  For example, purge all alarms
+           that are cleared and in closed operator state that are
+           older than 24 hours.  Purged alarms are removed from the
+           alarm list.  If the alarm resource state changes after a
+           purge, the alarm will reappear in the alarm list.
+
+           Systems may also remove alarms based on locally configured
+           policies; this is out of scope for this module.";
+        uses common-alarm-parameters;
+        leaf time-created {
+          type yang:date-and-time;
+          mandatory true;
+          description
+            "The timestamp when this alarm entry was created.  This
+             represents the first time the alarm appeared; it can
+             also represent that the alarm reappeared after a purge.
+             Further state changes of the same alarm do not change
+             this leaf; these changes will update the 'last-changed'
+             leaf.";
+        }
+        uses resource-alarm-parameters;
+        list operator-state-change {
+          if-feature "operator-actions";
+          key "time";
+          description
+            "This list is used by operators to indicate the state of
+             human intervention on an alarm.  For example, if an
+             operator has seen an alarm, the operator can add a new
+             item to this list indicating that the alarm is
+             acknowledged.";
+          uses operator-parameters;
+        }
+        action set-operator-state {
+          if-feature "operator-actions";
+          description
+            "This is a means for the operator to indicate the level
+             of human intervention on an alarm.";
+          input {
+            leaf state {
+              type writable-operator-state;
+              mandatory true;
+              description
+                "Set this operator state.";
+            }
+            leaf text {
+              type string;
+              description
+                "Additional optional textual information.";
+            }
+          }
+        }
+        notification operator-action {
+          if-feature "operator-actions";
+          description
+            "This notification is used to report that an operator
+             acted upon an alarm.";
+          uses operator-parameters;
+        }
+      }
+      action purge-alarms {
+        description
+          "This operation requests that the server delete entries
+           from the alarm list according to the supplied criteria.
+
+           Typically, this operation is used to delete alarms that
+           are in closed operator state and older than a specified
+           time.
+
+           The number of purged alarms is returned as an output
+           parameter.";
+        input {
+          uses filter-input;
+        }
+        output {
+          leaf purged-alarms {
+            type uint32;
+            description
+              "Number of purged alarms.";
+          }
+        }
+      }
+      action compress-alarms {
+        if-feature "alarm-history";
+        description
+          "This operation requests that the server compress
+           entries in the alarm list by removing all but the
+           latest 'status-change' entry for all matching alarms.
+           Conditions in the input are logically ANDed.  If no
+           input condition is given, all alarms are compressed.";
+        input {
+          leaf resource {
+            type resource-match;
+            description
+              "Compress the alarms matching this resource.";
+          }
+          leaf alarm-type-id {
+            type leafref {
+              path "/alarms/alarm-list/alarm/alarm-type-id";
+              require-instance false;
+            }
+            description
+              "Compress alarms with this 'alarm-type-id'.";
+          }
+          leaf alarm-type-qualifier {
+            type leafref {
+              path "/alarms/alarm-list/alarm/alarm-type-qualifier";
+              require-instance false;
+            }
+            description
+              "Compress the alarms with this
+               'alarm-type-qualifier'.";
+          }
+        }
+        output {
+          leaf compressed-alarms {
+            type uint32;
+            description
+              "Number of compressed alarm entries.";
+          }
+        }
+      }
+    }
+    container shelved-alarms {
+      if-feature "alarm-shelving";
+      config false;
+      description
+        "The shelved alarms.  Alarms appear here if they match the
+         criteria in /alarms/control/alarm-shelving.  This list does
+         not generate any notifications.  The list represents alarms
+         that are considered not relevant by the operator.  Alarms in
+         this list have an 'operator-state' of 'shelved'.  This
+         cannot be changed.";
+      leaf number-of-shelved-alarms {
+        type yang:gauge32;
+        description
+          "This object shows the total number of current
+           alarms, i.e., the total number of entries
+           in the alarm list.";
+      }
+      leaf shelved-alarms-last-changed {
+        type yang:date-and-time;
+        description
+          "A timestamp when the shelved-alarm list was last changed.
+           The value can be used by a manager to initiate an alarm
+           resynchronization procedure.";
+      }
+      list shelved-alarm {
+        key "resource alarm-type-id alarm-type-qualifier";
+        description
+          "The list of shelved alarms.  Shelved alarms can only be
+           updated from the underlying resource; no operator actions
+           are supported.";
+        uses common-alarm-parameters;
+        leaf shelf-name {
+          type leafref {
+            path "/alarms/control/alarm-shelving/shelf/name";
+            require-instance false;
+          }
+          description
+            "The name of the shelf.";
+        }
+        uses resource-alarm-parameters;
+        list operator-state-change {
+          if-feature "operator-actions";
+          key "time";
+          description
+            "This list is used by operators to indicate the state of
+             human intervention on an alarm.  For shelved alarms, the
+             system has set the list item in the list to 'shelved'.";
+          uses operator-parameters;
+        }
+      }
+      action purge-shelved-alarms {
+        description
+          "This operation requests that the server delete entries from
+           the shelved-alarm list according to the supplied criteria.
+           In the shelved-alarm list, it makes sense to delete alarms
+           that are not relevant anymore.
+
+           The number of purged alarms is returned as an output
+           parameter.";
+        input {
+          uses filter-input;
+        }
+        output {
+          leaf purged-alarms {
+            type uint32;
+            description
+              "Number of purged alarms.";
+          }
+        }
+      }
+      action compress-shelved-alarms {
+        if-feature "alarm-history";
+        description
+          "This operation requests that the server compress entries
+           in the shelved-alarm list by removing all but the latest
+           'status-change' entry for all matching shelved alarms.
+           Conditions in the input are logically ANDed.  If no input
+           condition is given, all alarms are compressed.";
+        input {
+          leaf resource {
+            type leafref {
+              path "/alarms/shelved-alarms/shelved-alarm/resource";
+              require-instance false;
+            }
+            description
+              "Compress the alarms with this resource.";
+          }
+          leaf alarm-type-id {
+            type leafref {
+              path "/alarms/shelved-alarms/shelved-alarm"
+                 + "/alarm-type-id";
+              require-instance false;
+            }
+            description
+              "Compress alarms with this 'alarm-type-id'.";
+          }
+          leaf alarm-type-qualifier {
+            type leafref {
+              path "/alarms/shelved-alarms/shelved-alarm"
+                 + "/alarm-type-qualifier";
+              require-instance false;
+            }
+            description
+              "Compress the alarms with this
+               'alarm-type-qualifier'.";
+          }
+        }
+        output {
+          leaf compressed-alarms {
+            type uint32;
+            description
+              "Number of compressed alarm entries.";
+          }
+        }
+      }
+    }
+    list alarm-profile {
+      if-feature "alarm-profile";
+      key "alarm-type-id alarm-type-qualifier-match resource";
+      //ordered-by user;
+      description
+        "This list is used to assign further information or
+         configuration for each alarm type.  This module supports a
+         mechanism where the client can override the system-default
+         alarm severity levels.  The 'alarm-profile' is also a useful
+         augmentation point for specific additions to alarm types.";
+      leaf alarm-type-id {
+        type alarm-type-id;
+        description
+          "The alarm type identifier to match.";
+      }
+      leaf alarm-type-qualifier-match {
+        type string;
+        description
+          "An XML Schema regular expression that is used to match the
+           alarm type qualifier.";
+        reference
+          "XML Schema Part 2: Datatypes Second Edition,
+             World Wide Web Consortium Recommendation
+             REC-xmlschema-2-20041028";
+      }
+      leaf resource {
+        type resource-match;
+        description
+          "Specifies which resources to match.";
+      }
+      leaf description {
+        type string;
+        mandatory true;
+        description
+          "A description of the alarm profile.";
+      }
+      container alarm-severity-assignment-profile {
+        if-feature "severity-assignment";
+        description
+          "The client can override the system-default severity
+           level.";
+        reference
+          "ITU-T Recommendation M.3100:
+             Generic network information model
+           ITU-T Recommendation M.3160:
+             Generic, protocol-neutral management information model";
+        leaf-list severity-level {
+          type severity;
+          //ordered-by user;
+          description
+            "Specifies the configured severity level(s) for the
+             matching alarm.  If the alarm has several severity
+             levels, the leaf-list shall be given in rising severity
+             order.  The original M3100/M3160 ASAP function only
+             allows for a one-to-one mapping between alarm type and
+             severity, but since YANG module supports stateful
+             alarms, the mapping must allow for several severity
+             levels.
+
+             Assume a high-utilization alarm type with two thresholds
+             with the system-default severity levels of threshold1 =
+             warning and threshold2 = minor.  Setting this leaf-list
+             to (minor, major) will assign the severity levels as
+             threshold1 = minor and threshold2 = major";
+        }
+      }
+    }
+  }
+
+  /*
+   * Notifications
+   */
+
+  notification alarm-notification {
+    description
+      "This notification is used to report a state change for an
+       alarm.  The same notification is used for reporting a newly
+       raised alarm, a cleared alarm, or changing the text and/or
+       severity of an existing alarm.";
+    uses common-alarm-parameters;
+    uses alarm-state-change-parameters;
+  }
+
+  notification alarm-inventory-changed {
+    description
+      "This notification is used to report that the list of possible
+       alarms has changed.  This can happen when, for example, a new
+       software module is installed or a new physical card is
+       inserted.";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-hardware.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-hardware.yang
new file mode 100755
index 000000000..f444e26ee
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-hardware.yang
@@ -0,0 +1,1141 @@
+module ietf-hardware {
+yang-version 1.1;
+namespace "urn:ietf:params:xml:ns:yang:ietf-hardware";
+prefix hw;
+
+import ietf-inet-types {
+  prefix inet;
+}
+import ietf-yang-types {
+  prefix yang;
+}
+import iana-hardware {
+  prefix ianahw;
+}
+
+organization
+  "IETF NETMOD (Network Modeling) Working Group";
+
+contact
+  "WG Web:   <https://datatracker.ietf.org/wg/netmod/>
+   WG List:  <mailto:netmod@ietf.org>
+   Editor:   Andy Bierman
+             <mailto:andy@yumaworks.com>
+   Editor:   Martin Bjorklund
+             <mailto:mbj@tail-f.com>
+   Editor:   Jie Dong
+             <mailto:jie.dong@huawei.com>
+   Editor:   Dan Romascanu
+             <mailto:dromasca@gmail.com>";
+
+description
+  "This module contains a collection of YANG definitions for
+   managing hardware.
+   This data model is designed for the Network Management Datastore
+   Architecture (NMDA) defined in RFC 8342.
+   Copyright (c) 2018 IETF Trust and the persons identified as
+   authors of the code.  All rights reserved.
+   Redistribution and use in source and binary forms, with or
+   without modification, is permitted pursuant to, and subject
+   to the license terms contained in, the Simplified BSD License
+   set forth in Section 4.c of the IETF Trust's Legal Provisions
+   Relating to IETF Documents
+   (https://trustee.ietf.org/license-info).
+   This version of this YANG module is part of RFC 8348; see
+   the RFC itself for full legal notices.";
+
+revision 2018-03-13 {
+  description
+    "Initial revision.";
+  reference
+    "RFC 8348: A YANG Data Model for Hardware Management";
+}
+
+/*
+ * Features
+ */
+
+feature entity-mib {
+  description
+    "This feature indicates that the device implements
+     the ENTITY-MIB.";
+  reference
+    "RFC 6933: Entity MIB (Version 4)";
+}
+
+feature hardware-state {
+  description
+    "Indicates that ENTITY-STATE-MIB objects are supported";
+  reference
+    "RFC 4268: Entity State MIB";
+}
+
+feature hardware-sensor {
+  description
+    "Indicates that ENTITY-SENSOR-MIB objects are supported";
+  reference
+    "RFC 3433: Entity Sensor Management Information Base";
+}
+
+/*
+ * Typedefs
+ */
+
+typedef admin-state {
+  type enumeration {
+    enum unknown {
+      value 1;
+      description
+        "The resource is unable to report administrative state.";
+    }
+    enum locked {
+      value 2;
+      description
+        "The resource is administratively prohibited from use.";
+    }
+    enum shutting-down {
+      value 3;
+      description
+        "The resource usage is administratively limited to current
+         instances of use.";
+    }
+    enum unlocked {
+      value 4;
+      description
+        "The resource is not administratively prohibited from
+         use.";
+    }
+  }
+  description
+    "Represents the various possible administrative states.";
+  reference
+    "RFC 4268: Entity State MIB - EntityAdminState";
+}
+
+typedef oper-state {
+  type enumeration {
+    enum unknown {
+      value 1;
+      description
+        "The resource is unable to report its operational state.";
+    }
+    enum disabled {
+      value 2;
+      description
+        "The resource is totally inoperable.";
+    }
+    enum enabled {
+      value 3;
+
+      description
+        "The resource is partially or fully operable.";
+    }
+    enum testing {
+      value 4;
+      description
+        "The resource is currently being tested and cannot
+         therefore report whether or not it is operational.";
+    }
+  }
+  description
+    "Represents the possible values of operational states.";
+  reference
+    "RFC 4268: Entity State MIB - EntityOperState";
+}
+
+typedef usage-state {
+  type enumeration {
+    enum unknown {
+      value 1;
+      description
+        "The resource is unable to report usage state.";
+    }
+    enum idle {
+      value 2;
+      description
+        "The resource is servicing no users.";
+    }
+    enum active {
+      value 3;
+      description
+        "The resource is currently in use, and it has sufficient
+         spare capacity to provide for additional users.";
+    }
+    enum busy {
+      value 4;
+      description
+        "The resource is currently in use, but it currently has no
+         spare capacity to provide for additional users.";
+    }
+  }
+  description
+    "Represents the possible values of usage states.";
+  reference
+    "RFC 4268: Entity State MIB -  EntityUsageState";
+}
+
+typedef alarm-state {
+  type bits {
+    bit unknown {
+      position 0;
+      description
+        "The resource is unable to report alarm state.";
+    }
+    bit under-repair {
+      position 1;
+      description
+        "The resource is currently being repaired, which, depending
+         on the implementation, may make the other values in this
+         bit string not meaningful.";
+    }
+    bit critical {
+      position 2;
+      description
+        "One or more critical alarms are active against the
+         resource.";
+    }
+    bit major {
+      position 3;
+      description
+        "One or more major alarms are active against the
+         resource.";
+    }
+    bit minor {
+      position 4;
+      description
+        "One or more minor alarms are active against the
+         resource.";
+    }
+    bit warning {
+      position 5;
+      description
+        "One or more warning alarms are active against the
+         resource.";
+    }
+    bit indeterminate {
+      position 6;
+      description
+        "One or more alarms of whose perceived severity cannot be
+         determined are active against this resource.";
+    }
+  }
+  description
+    "Represents the possible values of alarm states.  An alarm is a
+     persistent indication of an error or warning condition.
+     When no bits of this attribute are set, then no active alarms
+     are known against this component and it is not under repair.";
+  reference
+    "RFC 4268: Entity State MIB - EntityAlarmStatus";
+}
+
+typedef standby-state {
+  type enumeration {
+    enum unknown {
+      value 1;
+      description
+        "The resource is unable to report standby state.";
+    }
+    enum hot-standby {
+      value 2;
+      description
+        "The resource is not providing service, but it will be
+         immediately able to take over the role of the resource to
+         be backed up, without the need for initialization
+         activity, and will contain the same information as the
+         resource to be backed up.";
+    }
+    enum cold-standby {
+      value 3;
+      description
+        "The resource is to back up another resource, but it will
+         not be immediately able to take over the role of a
+         resource to be backed up and will require some
+         initialization activity.";
+    }
+    enum providing-service {
+      value 4;
+      description
+        "The resource is providing service.";
+    }
+  }
+  description
+    "Represents the possible values of standby states.";
+  reference
+    "RFC 4268: Entity State MIB - EntityStandbyStatus";
+}
+
+typedef sensor-value-type {
+  type enumeration {
+    enum other {
+      value 1;
+      description
+        "A measure other than those listed below.";
+    }
+    enum unknown {
+      value 2;
+      description
+        "An unknown measurement or arbitrary, relative numbers";
+    }
+    enum volts-AC {
+      value 3;
+      description
+        "A measure of electric potential (alternating current).";
+    }
+    enum volts-DC {
+      value 4;
+      description
+        "A measure of electric potential (direct current).";
+    }
+    enum amperes {
+      value 5;
+      description
+        "A measure of electric current.";
+    }
+    enum watts {
+      value 6;
+      description
+        "A measure of power.";
+    }
+    enum hertz {
+      value 7;
+      description
+        "A measure of frequency.";
+    }
+    enum celsius {
+      value 8;
+      description
+        "A measure of temperature.";
+    }
+    enum percent-RH {
+      value 9;
+      description
+        "A measure of percent relative humidity.";
+    }
+    enum rpm {
+      value 10;
+      description
+        "A measure of shaft revolutions per minute.";
+    }
+    enum cmm {
+      value 11;
+      description
+        "A measure of cubic meters per minute (airflow).";
+    }
+    enum truth-value {
+      value 12;
+      description
+        "Value is one of 1 (true) or 2 (false)";
+    }
+  }
+  description
+    "A node using this data type represents the sensor measurement
+     data type associated with a physical sensor value.  The actual
+     data units are determined by examining a node of this type
+     together with the associated sensor-value-scale node.
+     A node of this type SHOULD be defined together with nodes of
+     type sensor-value-scale and type sensor-value-precision.
+     These three types are used to identify the semantics of a node
+     of type sensor-value.";
+  reference
+    "RFC 3433: Entity Sensor Management Information Base -
+               EntitySensorDataType";
+}
+
+typedef sensor-value-scale {
+  type enumeration {
+    enum yocto {
+      value 1;
+      description
+        "Data scaling factor of 10^-24.";
+    }
+    enum zepto {
+      value 2;
+      description
+        "Data scaling factor of 10^-21.";
+    }
+    enum atto {
+      value 3;
+      description
+        "Data scaling factor of 10^-18.";
+    }
+    enum femto {
+      value 4;
+      description
+        "Data scaling factor of 10^-15.";
+    }
+    enum pico {
+      value 5;
+      description
+        "Data scaling factor of 10^-12.";
+    }
+    enum nano {
+      value 6;
+      description
+        "Data scaling factor of 10^-9.";
+    }
+    enum micro {
+      value 7;
+      description
+        "Data scaling factor of 10^-6.";
+    }
+    enum milli {
+      value 8;
+      description
+        "Data scaling factor of 10^-3.";
+    }
+    enum units {
+      value 9;
+      description
+        "Data scaling factor of 10^0.";
+    }
+    enum kilo {
+      value 10;
+      description
+        "Data scaling factor of 10^3.";
+    }
+    enum mega {
+      value 11;
+      description
+        "Data scaling factor of 10^6.";
+    }
+    enum giga {
+      value 12;
+      description
+        "Data scaling factor of 10^9.";
+    }
+    enum tera {
+      value 13;
+      description
+        "Data scaling factor of 10^12.";
+    }
+    enum peta {
+      value 14;
+      description
+        "Data scaling factor of 10^15.";
+    }
+    enum exa {
+      value 15;
+      description
+        "Data scaling factor of 10^18.";
+    }
+    enum zetta {
+      value 16;
+      description
+        "Data scaling factor of 10^21.";
+    }
+    enum yotta {
+      value 17;
+      description
+        "Data scaling factor of 10^24.";
+    }
+  }
+  description
+    "A node using this data type represents a data scaling factor,
+     represented with an International System of Units (SI) prefix.
+     The actual data units are determined by examining a node of
+     this type together with the associated sensor-value-type.
+     A node of this type SHOULD be defined together with nodes of
+     type sensor-value-type and type sensor-value-precision.
+     Together, associated nodes of these three types are used to
+     identify the semantics of a node of type sensor-value.";
+  reference
+    "RFC 3433: Entity Sensor Management Information Base -
+               EntitySensorDataScale";
+}
+
+typedef sensor-value-precision {
+  type int8 {
+    range "-8 .. 9";
+  }
+  description
+    "A node using this data type represents a sensor value
+     precision range.
+     A node of this type SHOULD be defined together with nodes of
+     type sensor-value-type and type sensor-value-scale.  Together,
+     associated nodes of these three types are used to identify the
+     semantics of a node of type sensor-value.
+     If a node of this type contains a value in the range 1 to 9,
+     it represents the number of decimal places in the fractional
+     part of an associated sensor-value fixed-point number.
+     If a node of this type contains a value in the range -8 to -1,
+     it represents the number of accurate digits in the associated
+     sensor-value fixed-point number.
+     The value zero indicates the associated sensor-value node is
+     not a fixed-point number.
+     Server implementers must choose a value for the associated
+     sensor-value-precision node so that the precision and accuracy
+     of the associated sensor-value node is correctly indicated.
+     For example, a component representing a temperature sensor
+     that can measure 0 to 100 degrees C in 0.1 degree
+     increments, +/- 0.05 degrees, would have a
+     sensor-value-precision value of '1', a sensor-value-scale
+     value of 'units', and a sensor-value ranging from '0' to
+     '1000'.  The sensor-value would be interpreted as
+     'degrees C * 10'.";
+  reference
+    "RFC 3433: Entity Sensor Management Information Base -
+               EntitySensorPrecision";
+}
+
+typedef sensor-value {
+  type int32 {
+    range "-1000000000 .. 1000000000";
+  }
+  description
+   "A node using this data type represents a sensor value.
+    A node of this type SHOULD be defined together with nodes of
+    type sensor-value-type, type sensor-value-scale, and
+    type sensor-value-precision.  Together, associated nodes of
+    those three types are used to identify the semantics of a node
+    of this data type.
+    The semantics of a node using this data type are determined by
+    the value of the associated sensor-value-type node.
+    If the associated sensor-value-type node is equal to 'voltsAC',
+    'voltsDC', 'amperes', 'watts', 'hertz', 'celsius', or 'cmm',
+    then a node of this type MUST contain a fixed-point number
+    ranging from -999,999,999 to +999,999,999.  The value
+    -1000000000 indicates an underflow error.  The value
+    +1000000000 indicates an overflow error.  The
+    sensor-value-precision indicates how many fractional digits
+    are represented in the associated sensor-value node.
+    If the associated sensor-value-type node is equal to
+    'percentRH', then a node of this type MUST contain a number
+    ranging from 0 to 100.
+    If the associated sensor-value-type node is equal to 'rpm',
+    then a node of this type MUST contain a number ranging from
+    -999,999,999 to +999,999,999.
+    If the associated sensor-value-type node is equal to
+    'truth-value', then a node of this type MUST contain either the
+    value 1 (true) or the value 2 (false).
+    If the associated sensor-value-type node is equal to 'other' or
+    'unknown', then a node of this type MUST contain a number
+    ranging from -1000000000 to 1000000000.";
+  reference
+    "RFC 3433: Entity Sensor Management Information Base -
+               EntitySensorValue";
+}
+
+typedef sensor-status {
+  type enumeration {
+    enum ok {
+      value 1;
+      description
+        "Indicates that the server can obtain the sensor value.";
+    }
+    enum unavailable {
+      value 2;
+      description
+        "Indicates that the server presently cannot obtain the
+         sensor value.";
+    }
+    enum nonoperational {
+      value 3;
+      description
+        "Indicates that the server believes the sensor is broken.
+         The sensor could have a hard failure (disconnected wire)
+         or a soft failure such as out-of-range, jittery, or wildly
+         fluctuating readings.";
+    }
+  }
+  description
+    "A node using this data type represents the operational status
+     of a physical sensor.";
+  reference
+    "RFC 3433: Entity Sensor Management Information Base -
+               EntitySensorStatus";
+}
+
+/*
+ * Data nodes
+ */
+
+container hardware {
+  description
+    "Data nodes representing components.
+     If the server supports configuration of hardware components,
+     then this data model is instantiated in the configuration
+     datastores supported by the server.  The leaf-list 'datastore'
+     for the module 'ietf-hardware' in the YANG library provides
+     this information.";
+
+  leaf last-change {
+    type yang:date-and-time;
+    config false;
+    description
+      "The time the '/hardware/component' list changed in the
+       operational state.";
+  }
+
+  list component {
+    key name;
+    description
+      "List of components.
+       When the server detects a new hardware component, it
+       initializes a list entry in the operational state.
+       If the server does not support configuration of hardware
+       components, list entries in the operational state are
+       initialized with values for all nodes as detected by the
+       implementation.
+       Otherwise, this procedure is followed:
+         1. If there is an entry in the '/hardware/component' list
+            in the intended configuration with values for the nodes
+            'class', 'parent', and 'parent-rel-pos' that are equal
+            to the detected values, then the list entry in the
+            operational state is initialized with the configured
+            values, including the 'name'.
+         2. Otherwise (i.e., there is no matching configuration
+            entry), the list entry in the operational state is
+            initialized with values for all nodes as detected by
+            the implementation.
+       If the '/hardware/component' list in the intended
+       configuration is modified, then the system MUST behave as if
+       it re-initializes itself and follow the procedure in (1).";
+    reference
+      "RFC 6933: Entity MIB (Version 4) - entPhysicalEntry";
+
+    leaf name {
+      type string;
+      description
+        "The name assigned to this component.
+         This name is not required to be the same as
+         entPhysicalName.";
+    }
+
+    leaf class {
+      type identityref {
+        base ianahw:hardware-class;
+      }
+      mandatory true;
+      description
+        "An indication of the general hardware type of the
+         component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalClass";
+    }
+
+    leaf physical-index {
+      if-feature entity-mib;
+      type int32 {
+        range "1..2147483647";
+      }
+      config false;
+      description
+        "The entPhysicalIndex for the entPhysicalEntry represented
+         by this list entry.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalIndex";
+    }
+
+    leaf description {
+      type string;
+      config false;
+      description
+        "A textual description of the component.  This node should
+         contain a string that identifies the manufacturer's name
+         for the component and should be set to a distinct value
+         for each version or model of the component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalDescr";
+    }
+
+    leaf parent {
+      type leafref {
+        path "../../component/name";
+        require-instance false;
+      }
+      description
+        "The name of the component that physically contains this
+         component.
+         If this leaf is not instantiated, it indicates that this
+         component is not contained in any other component.
+         In the event that a physical component is contained by
+         more than one physical component (e.g., double-wide
+         modules), this node contains the name of one of these
+         components.  An implementation MUST use the same name
+         every time this node is instantiated.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalContainedIn";
+    }
+
+    leaf parent-rel-pos {
+      type int32 {
+        range "0 .. 2147483647";
+      }
+      description
+        "An indication of the relative position of this child
+         component among all its sibling components.  Sibling
+         components are defined as components that:
+           o share the same value of the 'parent' node and
+           o share a common base identity for the 'class' node.
+         Note that the last rule gives implementations flexibility
+         in how components are numbered.  For example, some
+         implementations might have a single number series for all
+         components derived from 'ianahw:port', while some others
+         might have different number series for different
+         components with identities derived from 'ianahw:port' (for
+         example, one for registered jack 45 (RJ45) and one for
+         small form-factor pluggable (SFP)).";
+
+      reference
+        "RFC 6933: Entity MIB (Version 4) -
+                   entPhysicalParentRelPos";
+    }
+
+    leaf-list contains-child {
+      type leafref {
+        path "../../component/name";
+      }
+      config false;
+      description
+        "The name of the contained component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalChildIndex";
+    }
+
+    leaf hardware-rev {
+      type string;
+      config false;
+      description
+        "The vendor-specific hardware revision string for the
+         component.  The preferred value is the hardware revision
+         identifier actually printed on the component itself (if
+         present).";
+      reference
+        "RFC 6933: Entity MIB (Version 4) -
+                   entPhysicalHardwareRev";
+    }
+
+    leaf firmware-rev {
+      type string;
+      config false;
+      description
+        "The vendor-specific firmware revision string for the
+         component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) -
+                   entPhysicalFirmwareRev";
+    }
+
+    leaf software-rev {
+      type string;
+      config false;
+
+      description
+        "The vendor-specific software revision string for the
+         component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) -
+                   entPhysicalSoftwareRev";
+    }
+
+    leaf serial-num {
+      type string;
+      config false;
+      description
+        "The vendor-specific serial number string for the
+         component.  The preferred value is the serial number
+         string actually printed on the component itself (if
+         present).";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalSerialNum";
+    }
+
+    leaf mfg-name {
+      type string;
+      config false;
+      description
+        "The name of the manufacturer of this physical component.
+         The preferred value is the manufacturer name string
+         actually printed on the component itself (if present).
+         Note that comparisons between instances of the
+         'model-name', 'firmware-rev', 'software-rev', and
+         'serial-num' nodes are only meaningful amongst components
+         with the same value of 'mfg-name'.
+         If the manufacturer name string associated with the
+         physical component is unknown to the server, then this
+         node is not instantiated.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalMfgName";
+    }
+
+    leaf model-name {
+      type string;
+      config false;
+      description
+        "The vendor-specific model name identifier string
+         associated with this physical component.  The preferred
+         value is the customer-visible part number, which may be
+         printed on the component itself.
+         If the model name string associated with the physical
+         component is unknown to the server, then this node is not
+         instantiated.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalModelName";
+    }
+
+    leaf alias {
+      type string;
+      description
+        "An 'alias' name for the component, as specified by a
+         network manager, that provides a non-volatile 'handle' for
+         the component.
+         If no configured value exists, the server MAY set the
+         value of this node to a locally unique value in the
+         operational state.
+         A server implementation MAY map this leaf to the
+         entPhysicalAlias MIB object.  Such an implementation needs
+         to use some mechanism to handle the differences in size
+         and characters allowed between this leaf and
+         entPhysicalAlias.  The definition of such a mechanism is
+         outside the scope of this document.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalAlias";
+    }
+
+    leaf asset-id {
+      type string;
+      description
+        "This node is a user-assigned asset tracking identifier for
+         the component.
+         A server implementation MAY map this leaf to the
+         entPhysicalAssetID MIB object.  Such an implementation
+         needs to use some mechanism to handle the differences in
+         size and characters allowed between this leaf and
+         entPhysicalAssetID.  The definition of such a mechanism is
+         outside the scope of this document.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalAssetID";
+    }
+
+    leaf is-fru {
+      type boolean;
+      config false;
+
+      description
+        "This node indicates whether or not this component is
+         considered a 'field-replaceable unit' by the vendor.  If
+         this node contains the value 'true', then this component
+         identifies a field-replaceable unit.  For all components
+         that are permanently contained within a field-replaceable
+         unit, the value 'false' should be returned for this
+         node.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalIsFRU";
+    }
+
+    leaf mfg-date {
+      type yang:date-and-time;
+      config false;
+      description
+        "The date of manufacturing of the managed component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalMfgDate";
+    }
+
+    leaf-list uri {
+      type inet:uri;
+      description
+        "This node contains identification information about the
+         component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalUris";
+    }
+
+    leaf uuid {
+      type yang:uuid;
+      config false;
+      description
+        "A Universally Unique Identifier of the component.";
+      reference
+        "RFC 6933: Entity MIB (Version 4) - entPhysicalUUID";
+    }
+
+    container state {
+      if-feature hardware-state;
+      description
+        "State-related nodes";
+      reference
+        "RFC 4268: Entity State MIB";
+
+      leaf state-last-changed {
+        type yang:date-and-time;
+        config false;
+        description
+          "The date and time when the value of any of the
+           admin-state, oper-state, usage-state, alarm-state, or
+           standby-state changed for this component.
+           If there has been no change since the last
+           re-initialization of the local system, this node
+           contains the date and time of local system
+           initialization.  If there has been no change since the
+           component was added to the local system, this node
+           contains the date and time of the insertion.";
+        reference
+          "RFC 4268: Entity State MIB - entStateLastChanged";
+      }
+
+      leaf admin-state {
+        type admin-state;
+        description
+          "The administrative state for this component.
+           This node refers to a component's administrative
+           permission to service both other components within its
+           containment hierarchy as well other users of its
+           services defined by means outside the scope of this
+           module.
+           Some components exhibit only a subset of the remaining
+           administrative state values.  Some components cannot be
+           locked; hence, this node exhibits only the 'unlocked'
+           state.  Other components cannot be shut down gracefully;
+           hence, this node does not exhibit the 'shutting-down'
+           state.";
+        reference
+          "RFC 4268: Entity State MIB - entStateAdmin";
+      }
+
+      leaf oper-state {
+        type oper-state;
+        config false;
+        description
+          "The operational state for this component.
+           Note that this node does not follow the administrative
+           state.  An administrative state of 'down' does not
+           predict an operational state of 'disabled'.
+           Note that some implementations may not be able to
+           accurately report oper-state while the admin-state node
+           has a value other than 'unlocked'.  In these cases, this
+           node MUST have a value of 'unknown'.";
+        reference
+          "RFC 4268: Entity State MIB - entStateOper";
+      }
+
+      leaf usage-state {
+        type usage-state;
+        config false;
+        description
+          "The usage state for this component.
+           This node refers to a component's ability to service
+           more components in a containment hierarchy.
+           Some components will exhibit only a subset of the usage
+           state values.  Components that are unable to ever
+           service any components within a containment hierarchy
+           will always have a usage state of 'busy'.  In some
+           cases, a component will be able to support only one
+           other component within its containment hierarchy and
+           will therefore only exhibit values of 'idle' and
+           'busy'.";
+        reference
+          "RFC 4268: Entity State MIB - entStateUsage";
+      }
+
+      leaf alarm-state {
+        type alarm-state;
+        config false;
+        description
+          "The alarm state for this component.  It does not
+           include the alarms raised on child components within its
+           containment hierarchy.";
+        reference
+          "RFC 4268: Entity State MIB - entStateAlarm";
+      }
+
+      leaf standby-state {
+        type standby-state;
+        config false;
+        description
+          "The standby state for this component.
+           Some components will exhibit only a subset of the
+           remaining standby state values.  If this component
+           cannot operate in a standby role, the value of this node
+           will always be 'providing-service'.";
+        reference
+          "RFC 4268: Entity State MIB - entStateStandby";
+      }
+    }
+
+    container sensor-data {
+      when 'derived-from-or-self(../class,
+                                 "ianahw:sensor")' {
+        description
+          "Sensor data nodes present for any component of type
+           'sensor'";
+      }
+      if-feature hardware-sensor;
+      config false;
+
+      description
+        "Sensor-related nodes.";
+      reference
+        "RFC 3433: Entity Sensor Management Information Base";
+
+      leaf value {
+        type sensor-value;
+        description
+          "The most recent measurement obtained by the server
+           for this sensor.
+           A client that periodically fetches this node should also
+           fetch the nodes 'value-type', 'value-scale', and
+           'value-precision', since they may change when the value
+           is changed.";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorValue";
+      }
+
+      leaf value-type {
+        type sensor-value-type;
+        description
+          "The type of data units associated with the
+           sensor value";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorType";
+      }
+      leaf value-scale {
+        type sensor-value-scale;
+        description
+          "The (power of 10) scaling factor associated
+           with the sensor value";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorScale";
+      }
+
+      leaf value-precision {
+        type sensor-value-precision;
+        description
+          "The number of decimal places of precision
+           associated with the sensor value";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorPrecision";
+      }
+
+      leaf oper-status {
+        type sensor-status;
+        description
+          "The operational status of the sensor.";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorOperStatus";
+      }
+
+      leaf units-display {
+        type string;
+        description
+          "A textual description of the data units that should be
+           used in the display of the sensor value.";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorUnitsDisplay";
+      }
+
+      leaf value-timestamp {
+        type yang:date-and-time;
+        description
+          "The time the status and/or value of this sensor was last
+           obtained by the server.";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorValueTimeStamp";
+      }
+      leaf value-update-rate {
+        type uint32;
+        units "milliseconds";
+        description
+          "An indication of the frequency that the server updates
+           the associated 'value' node, represented in
+           milliseconds.  The value zero indicates:
+            - the sensor value is updated on demand (e.g.,
+              when polled by the server for a get-request),
+            - the sensor value is updated when the sensor
+              value changes (event-driven), or
+            - the server does not know the update rate.";
+        reference
+          "RFC 3433: Entity Sensor Management Information Base -
+                     entPhySensorValueUpdateRate";
+      }
+    }
+  }
+}
+
+/*
+ * Notifications
+ */
+
+notification hardware-state-change {
+  description
+    "A hardware-state-change notification is generated when the
+     value of /hardware/last-change changes in the operational
+     state.";
+  reference
+    "RFC 6933: Entity MIB (Version 4) - entConfigChange";
+}
+
+notification hardware-state-oper-enabled {
+  if-feature hardware-state;
+  description
+    "A hardware-state-oper-enabled notification signifies that a
+     component has transitioned into the 'enabled' state.";
+
+  leaf name {
+    type leafref {
+      path "/hardware/component/name";
+    }
+
+    description
+      "The name of the component that has transitioned into the
+       'enabled' state.";
+  }
+  leaf admin-state {
+    type leafref {
+      path "/hardware/component/state/admin-state";
+    }
+    description
+      "The administrative state for the component.";
+  }
+  leaf alarm-state {
+    type leafref {
+      path "/hardware/component/state/alarm-state";
+    }
+    description
+      "The alarm state for the component.";
+  }
+  reference
+    "RFC 4268: Entity State MIB - entStateOperEnabled";
+}
+
+notification hardware-state-oper-disabled {
+  if-feature hardware-state;
+  description
+    "A hardware-state-oper-disabled notification signifies that a
+     component has transitioned into the 'disabled' state.";
+
+  leaf name {
+    type leafref {
+      path "/hardware/component/name";
+    }
+    description
+      "The name of the component that has transitioned into the
+       'disabled' state.";
+  }
+  leaf admin-state {
+    type leafref {
+      path "/hardware/component/state/admin-state";
+    }
+    description
+      "The administrative state for the component.";
+  }
+  leaf alarm-state {
+    type leafref {
+      path "/hardware/component/state/alarm-state";
+    }
+
+    description
+      "The alarm state for the component.";
+  }
+  reference
+    "RFC 4268: Entity State MIB - entStateOperDisabled";
+}
+
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-interfaces.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-interfaces.yang
new file mode 100644
index 000000000..8dae9d3e2
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/ietf-interfaces.yang
@@ -0,0 +1,1073 @@
+module ietf-interfaces {
+  yang-version 1.1;
+  namespace "urn:ietf:params:xml:ns:yang:ietf-interfaces";
+  prefix if;
+
+  import ietf-yang-types {
+    prefix yang;
+  }
+
+  organization
+    "IETF NETMOD (Network Modeling) Working Group";
+
+  contact
+    "WG Web:   <https://datatracker.ietf.org/wg/netmod/>
+     WG List:  <mailto:netmod@ietf.org>
+     Editor:   Martin Bjorklund
+               <mailto:mbj@tail-f.com>";
+
+  description
+    "This module contains a collection of YANG definitions for
+     managing network interfaces.
+     Copyright (c) 2018 IETF Trust and the persons identified as
+     authors of the code.  All rights reserved.
+     Redistribution and use in source and binary forms, with or
+     without modification, is permitted pursuant to, and subject
+     to the license terms contained in, the Simplified BSD License
+     set forth in Section 4.c of the IETF Trust's Legal Provisions
+     Relating to IETF Documents
+     (https://trustee.ietf.org/license-info).
+     This version of this YANG module is part of RFC 8343; see
+     the RFC itself for full legal notices.";
+
+  revision 2018-02-20 {
+    description
+      "Updated to support NMDA.";
+    reference
+      "RFC 8343: A YANG Data Model for Interface Management";
+  }
+
+  revision 2014-05-08 {
+    description
+      "Initial revision.";
+    reference
+      "RFC 7223: A YANG Data Model for Interface Management";
+  }
+
+  /*
+   * Typedefs
+   */
+
+  typedef interface-ref {
+    type leafref {
+      path "/if:interfaces/if:interface/if:name";
+    }
+    description
+      "This type is used by data models that need to reference
+       interfaces.";
+  }
+
+  /*
+   * Identities
+   */
+
+  identity interface-type {
+    description
+      "Base identity from which specific interface types are
+       derived.";
+  }
+
+  /*
+   * Features
+   */
+
+  feature arbitrary-names {
+    description
+      "This feature indicates that the device allows user-controlled
+       interfaces to be named arbitrarily.";
+  }
+  feature pre-provisioning {
+    description
+      "This feature indicates that the device supports
+       pre-provisioning of interface configuration, i.e., it is
+       possible to configure an interface whose physical interface
+       hardware is not present on the device.";
+  }
+  feature if-mib {
+    description
+      "This feature indicates that the device implements
+       the IF-MIB.";
+    reference
+      "RFC 2863: The Interfaces Group MIB";
+  }
+
+  /*
+   * Data nodes
+   */
+
+  container interfaces {
+    description
+      "Interface parameters.";
+
+    list interface {
+      key "name";
+
+      description
+        "The list of interfaces on the device.
+         The status of an interface is available in this list in the
+         operational state.  If the configuration of a
+         system-controlled interface cannot be used by the system
+         (e.g., the interface hardware present does not match the
+         interface type), then the configuration is not applied to
+         the system-controlled interface shown in the operational
+         state.  If the configuration of a user-controlled interface
+         cannot be used by the system, the configured interface is
+         not instantiated in the operational state.
+         System-controlled interfaces created by the system are
+         always present in this list in the operational state,
+         whether or not they are configured.";
+
+     leaf name {
+        type string;
+        description
+          "The name of the interface.
+           A device MAY restrict the allowed values for this leaf,
+           possibly depending on the type of the interface.
+           For system-controlled interfaces, this leaf is the
+           device-specific name of the interface.
+           If a client tries to create configuration for a
+           system-controlled interface that is not present in the
+           operational state, the server MAY reject the request if
+           the implementation does not support pre-provisioning of
+           interfaces or if the name refers to an interface that can
+           never exist in the system.  A Network Configuration
+           Protocol (NETCONF) server MUST reply with an rpc-error
+           with the error-tag 'invalid-value' in this case.
+           If the device supports pre-provisioning of interface
+           configuration, the 'pre-provisioning' feature is
+           advertised.
+           If the device allows arbitrarily named user-controlled
+           interfaces, the 'arbitrary-names' feature is advertised.
+           When a configured user-controlled interface is created by
+           the system, it is instantiated with the same name in the
+           operational state.
+           A server implementation MAY map this leaf to the ifName
+           MIB object.  Such an implementation needs to use some
+           mechanism to handle the differences in size and characters
+           allowed between this leaf and ifName.  The definition of
+           such a mechanism is outside the scope of this document.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifName";
+      }
+
+      leaf description {
+        type string;
+        description
+          "A textual description of the interface.
+           A server implementation MAY map this leaf to the ifAlias
+           MIB object.  Such an implementation needs to use some
+           mechanism to handle the differences in size and characters
+           allowed between this leaf and ifAlias.  The definition of
+           such a mechanism is outside the scope of this document.
+           Since ifAlias is defined to be stored in non-volatile
+           storage, the MIB implementation MUST map ifAlias to the
+           value of 'description' in the persistently stored
+           configuration.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifAlias";
+      }
+
+      leaf type {
+        type identityref {
+          base interface-type;
+        }
+        mandatory true;
+        description
+          "The type of the interface.
+           When an interface entry is created, a server MAY
+           initialize the type leaf with a valid value, e.g., if it
+           is possible to derive the type from the name of the
+           interface.
+           If a client tries to set the type of an interface to a
+           value that can never be used by the system, e.g., if the
+           type is not supported or if the type does not match the
+           name of the interface, the server MUST reject the request.
+           A NETCONF server MUST reply with an rpc-error with the
+           error-tag 'invalid-value' in this case.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifType";
+      }
+
+      leaf enabled {
+        type boolean;
+        default "true";
+        description
+          "This leaf contains the configured, desired state of the
+           interface.
+           Systems that implement the IF-MIB use the value of this
+           leaf in the intended configuration to set
+           IF-MIB.ifAdminStatus to 'up' or 'down' after an ifEntry
+           has been initialized, as described in RFC 2863.
+           Changes in this leaf in the intended configuration are
+           reflected in ifAdminStatus.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifAdminStatus";
+      }
+
+      leaf link-up-down-trap-enable {
+        if-feature if-mib;
+        type enumeration {
+          enum enabled {
+            value 1;
+            description
+              "The device will generate linkUp/linkDown SNMP
+               notifications for this interface.";
+          }
+          enum disabled {
+            value 2;
+            description
+              "The device will not generate linkUp/linkDown SNMP
+               notifications for this interface.";
+          }
+        }
+        description
+          "Controls whether linkUp/linkDown SNMP notifications
+           should be generated for this interface.
+           If this node is not configured, the value 'enabled' is
+           operationally used by the server for interfaces that do
+           not operate on top of any other interface (i.e., there are
+           no 'lower-layer-if' entries), and 'disabled' otherwise.";
+        reference
+          "RFC 2863: The Interfaces Group MIB -
+                     ifLinkUpDownTrapEnable";
+      }
+
+      leaf admin-status {
+        if-feature if-mib;
+        type enumeration {
+          enum up {
+            value 1;
+            description
+              "Ready to pass packets.";
+          }
+          enum down {
+            value 2;
+            description
+              "Not ready to pass packets and not in some test mode.";
+          }
+          enum testing {
+            value 3;
+            description
+              "In some test mode.";
+          }
+        }
+        config false;
+        mandatory true;
+        description
+          "The desired state of the interface.
+           This leaf has the same read semantics as ifAdminStatus.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifAdminStatus";
+      }
+
+      leaf oper-status {
+        type enumeration {
+          enum up {
+            value 1;
+            description
+              "Ready to pass packets.";
+          }
+          enum down {
+            value 2;
+
+            description
+              "The interface does not pass any packets.";
+          }
+          enum testing {
+            value 3;
+            description
+              "In some test mode.  No operational packets can
+               be passed.";
+          }
+          enum unknown {
+            value 4;
+            description
+              "Status cannot be determined for some reason.";
+          }
+          enum dormant {
+            value 5;
+            description
+              "Waiting for some external event.";
+          }
+          enum not-present {
+            value 6;
+            description
+              "Some component (typically hardware) is missing.";
+          }
+          enum lower-layer-down {
+            value 7;
+            description
+              "Down due to state of lower-layer interface(s).";
+          }
+        }
+        config false;
+        mandatory true;
+        description
+          "The current operational state of the interface.
+           This leaf has the same semantics as ifOperStatus.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifOperStatus";
+      }
+
+      leaf last-change {
+        type yang:date-and-time;
+        config false;
+        description
+          "The time the interface entered its current operational
+           state.  If the current state was entered prior to the
+           last re-initialization of the local network management
+           subsystem, then this node is not present.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifLastChange";
+      }
+
+      leaf if-index {
+        if-feature if-mib;
+        type int32 {
+          range "1..2147483647";
+        }
+        config false;
+        mandatory true;
+        description
+          "The ifIndex value for the ifEntry represented by this
+           interface.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifIndex";
+      }
+
+      leaf phys-address {
+        type yang:phys-address;
+        config false;
+        description
+          "The interface's address at its protocol sub-layer.  For
+           example, for an 802.x interface, this object normally
+           contains a Media Access Control (MAC) address.  The
+           interface's media-specific modules must define the bit
+           and byte ordering and the format of the value of this
+           object.  For interfaces that do not have such an address
+           (e.g., a serial line), this node is not present.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifPhysAddress";
+      }
+
+      leaf-list higher-layer-if {
+        type interface-ref;
+        config false;
+        description
+          "A list of references to interfaces layered on top of this
+           interface.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifStackTable";
+      }
+
+      leaf-list lower-layer-if {
+        type interface-ref;
+        config false;
+
+        description
+          "A list of references to interfaces layered underneath this
+           interface.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifStackTable";
+      }
+
+      leaf speed {
+        type yang:gauge64;
+        units "bits/second";
+        config false;
+        description
+            "An estimate of the interface's current bandwidth in bits
+             per second.  For interfaces that do not vary in
+             bandwidth or for those where no accurate estimation can
+             be made, this node should contain the nominal bandwidth.
+             For interfaces that have no concept of bandwidth, this
+             node is not present.";
+        reference
+          "RFC 2863: The Interfaces Group MIB -
+                     ifSpeed, ifHighSpeed";
+      }
+
+      container statistics {
+        config false;
+        description
+          "A collection of interface-related statistics objects.";
+
+        leaf discontinuity-time {
+          type yang:date-and-time;
+          mandatory true;
+          description
+            "The time on the most recent occasion at which any one or
+             more of this interface's counters suffered a
+             discontinuity.  If no such discontinuities have occurred
+             since the last re-initialization of the local management
+             subsystem, then this node contains the time the local
+             management subsystem re-initialized itself.";
+        }
+
+        leaf in-octets {
+          type yang:counter64;
+          description
+            "The total number of octets received on the interface,
+             including framing characters.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCInOctets";
+        }
+
+        leaf in-unicast-pkts {
+          type yang:counter64;
+          description
+            "The number of packets, delivered by this sub-layer to a
+             higher (sub-)layer, that were not addressed to a
+             multicast or broadcast address at this sub-layer.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCInUcastPkts";
+        }
+
+        leaf in-broadcast-pkts {
+          type yang:counter64;
+          description
+            "The number of packets, delivered by this sub-layer to a
+             higher (sub-)layer, that were addressed to a broadcast
+             address at this sub-layer.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCInBroadcastPkts";
+        }
+
+        leaf in-multicast-pkts {
+          type yang:counter64;
+          description
+            "The number of packets, delivered by this sub-layer to a
+             higher (sub-)layer, that were addressed to a multicast
+             address at this sub-layer.  For a MAC-layer protocol,
+             this includes both Group and Functional addresses.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCInMulticastPkts";
+        }
+
+        leaf in-discards {
+          type yang:counter32;
+          description
+            "The number of inbound packets that were chosen to be
+             discarded even though no errors had been detected to
+             prevent their being deliverable to a higher-layer
+             protocol.  One possible reason for discarding such a
+             packet could be to free up buffer space.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifInDiscards";
+        }
+
+        leaf in-errors {
+          type yang:counter32;
+          description
+            "For packet-oriented interfaces, the number of inbound
+             packets that contained errors preventing them from being
+             deliverable to a higher-layer protocol.  For character-
+             oriented or fixed-length interfaces, the number of
+             inbound transmission units that contained errors
+             preventing them from being deliverable to a higher-layer
+             protocol.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifInErrors";
+        }
+
+        leaf in-unknown-protos {
+          type yang:counter32;
+
+          description
+            "For packet-oriented interfaces, the number of packets
+             received via the interface that were discarded because
+             of an unknown or unsupported protocol.  For
+             character-oriented or fixed-length interfaces that
+             support protocol multiplexing, the number of
+             transmission units received via the interface that were
+             discarded because of an unknown or unsupported protocol.
+             For any interface that does not support protocol
+             multiplexing, this counter is not present.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifInUnknownProtos";
+        }
+
+        leaf out-octets {
+          type yang:counter64;
+          description
+            "The total number of octets transmitted out of the
+             interface, including framing characters.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCOutOctets";
+        }
+
+        leaf out-unicast-pkts {
+          type yang:counter64;
+          description
+            "The total number of packets that higher-level protocols
+             requested be transmitted and that were not addressed
+             to a multicast or broadcast address at this sub-layer,
+             including those that were discarded or not sent.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCOutUcastPkts";
+        }
+
+        leaf out-broadcast-pkts {
+          type yang:counter64;
+          description
+            "The total number of packets that higher-level protocols
+             requested be transmitted and that were addressed to a
+             broadcast address at this sub-layer, including those
+             that were discarded or not sent.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCOutBroadcastPkts";
+        }
+
+        leaf out-multicast-pkts {
+          type yang:counter64;
+          description
+            "The total number of packets that higher-level protocols
+             requested be transmitted and that were addressed to a
+             multicast address at this sub-layer, including those
+             that were discarded or not sent.  For a MAC-layer
+             protocol, this includes both Group and Functional
+             addresses.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCOutMulticastPkts";
+        }
+
+        leaf out-discards {
+          type yang:counter32;
+          description
+            "The number of outbound packets that were chosen to be
+             discarded even though no errors had been detected to
+             prevent their being transmitted.  One possible reason
+             for discarding such a packet could be to free up buffer
+             space.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifOutDiscards";
+        }
+
+        leaf out-errors {
+          type yang:counter32;
+          description
+            "For packet-oriented interfaces, the number of outbound
+             packets that could not be transmitted because of errors.
+             For character-oriented or fixed-length interfaces, the
+             number of outbound transmission units that could not be
+             transmitted because of errors.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifOutErrors";
+        }
+      }
+
+    }
+  }
+
+  /*
+   * Legacy typedefs
+   */
+
+  typedef interface-state-ref {
+    type leafref {
+      path "/if:interfaces-state/if:interface/if:name";
+    }
+    status deprecated;
+    description
+      "This type is used by data models that need to reference
+       the operationally present interfaces.";
+  }
+
+  /*
+   * Legacy operational state data nodes
+   */
+
+  container interfaces-state {
+    config false;
+    status deprecated;
+    description
+      "Data nodes for the operational state of interfaces.";
+
+    list interface {
+      key "name";
+      status deprecated;
+
+      description
+        "The list of interfaces on the device.
+         System-controlled interfaces created by the system are
+         always present in this list, whether or not they are
+         configured.";
+
+      leaf name {
+        type string;
+        status deprecated;
+        description
+          "The name of the interface.
+           A server implementation MAY map this leaf to the ifName
+           MIB object.  Such an implementation needs to use some
+           mechanism to handle the differences in size and characters
+           allowed between this leaf and ifName.  The definition of
+           such a mechanism is outside the scope of this document.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifName";
+      }
+
+      leaf type {
+        type identityref {
+          base interface-type;
+        }
+        mandatory true;
+        status deprecated;
+        description
+          "The type of the interface.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifType";
+      }
+
+      leaf admin-status {
+        if-feature if-mib;
+        type enumeration {
+          enum up {
+            value 1;
+            description
+              "Ready to pass packets.";
+          }
+          enum down {
+            value 2;
+            description
+              "Not ready to pass packets and not in some test mode.";
+          }
+          enum testing {
+            value 3;
+            description
+              "In some test mode.";
+          }
+        }
+        mandatory true;
+        status deprecated;
+        description
+          "The desired state of the interface.
+           This leaf has the same read semantics as ifAdminStatus.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifAdminStatus";
+      }
+
+      leaf oper-status {
+        type enumeration {
+          enum up {
+            value 1;
+            description
+              "Ready to pass packets.";
+          }
+          enum down {
+            value 2;
+            description
+              "The interface does not pass any packets.";
+          }
+          enum testing {
+            value 3;
+            description
+              "In some test mode.  No operational packets can
+               be passed.";
+          }
+          enum unknown {
+            value 4;
+            description
+              "Status cannot be determined for some reason.";
+          }
+          enum dormant {
+            value 5;
+            description
+              "Waiting for some external event.";
+          }
+          enum not-present {
+            value 6;
+            description
+              "Some component (typically hardware) is missing.";
+          }
+          enum lower-layer-down {
+            value 7;
+            description
+              "Down due to state of lower-layer interface(s).";
+          }
+        }
+        mandatory true;
+        status deprecated;
+        description
+          "The current operational state of the interface.
+           This leaf has the same semantics as ifOperStatus.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifOperStatus";
+      }
+
+      leaf last-change {
+        type yang:date-and-time;
+        status deprecated;
+        description
+          "The time the interface entered its current operational
+           state.  If the current state was entered prior to the
+           last re-initialization of the local network management
+           subsystem, then this node is not present.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifLastChange";
+      }
+
+      leaf if-index {
+        if-feature if-mib;
+        type int32 {
+          range "1..2147483647";
+        }
+        mandatory true;
+        status deprecated;
+        description
+          "The ifIndex value for the ifEntry represented by this
+           interface.";
+
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifIndex";
+      }
+
+      leaf phys-address {
+        type yang:phys-address;
+        status deprecated;
+        description
+          "The interface's address at its protocol sub-layer.  For
+           example, for an 802.x interface, this object normally
+           contains a Media Access Control (MAC) address.  The
+           interface's media-specific modules must define the bit
+           and byte ordering and the format of the value of this
+           object.  For interfaces that do not have such an address
+           (e.g., a serial line), this node is not present.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifPhysAddress";
+      }
+
+      leaf-list higher-layer-if {
+        type interface-state-ref;
+        status deprecated;
+        description
+          "A list of references to interfaces layered on top of this
+           interface.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifStackTable";
+      }
+
+      leaf-list lower-layer-if {
+        type interface-state-ref;
+        status deprecated;
+        description
+          "A list of references to interfaces layered underneath this
+           interface.";
+        reference
+          "RFC 2863: The Interfaces Group MIB - ifStackTable";
+      }
+
+      leaf speed {
+        type yang:gauge64;
+        units "bits/second";
+        status deprecated;
+        description
+            "An estimate of the interface's current bandwidth in bits
+             per second.  For interfaces that do not vary in
+             bandwidth or for those where no accurate estimation can
+             be made, this node should contain the nominal bandwidth.
+             For interfaces that have no concept of bandwidth, this
+             node is not present.";
+        reference
+          "RFC 2863: The Interfaces Group MIB -
+                     ifSpeed, ifHighSpeed";
+      }
+
+      container statistics {
+        status deprecated;
+        description
+          "A collection of interface-related statistics objects.";
+
+        leaf discontinuity-time {
+          type yang:date-and-time;
+          mandatory true;
+          status deprecated;
+          description
+            "The time on the most recent occasion at which any one or
+             more of this interface's counters suffered a
+             discontinuity.  If no such discontinuities have occurred
+             since the last re-initialization of the local management
+             subsystem, then this node contains the time the local
+             management subsystem re-initialized itself.";
+        }
+
+        leaf in-octets {
+          type yang:counter64;
+          status deprecated;
+          description
+            "The total number of octets received on the interface,
+             including framing characters.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCInOctets";
+        }
+
+        leaf in-unicast-pkts {
+          type yang:counter64;
+          status deprecated;
+          description
+            "The number of packets, delivered by this sub-layer to a
+             higher (sub-)layer, that were not addressed to a
+             multicast or broadcast address at this sub-layer.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCInUcastPkts";
+        }
+
+        leaf in-broadcast-pkts {
+          type yang:counter64;
+          status deprecated;
+          description
+            "The number of packets, delivered by this sub-layer to a
+             higher (sub-)layer, that were addressed to a broadcast
+             address at this sub-layer.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCInBroadcastPkts";
+        }
+
+        leaf in-multicast-pkts {
+          type yang:counter64;
+          status deprecated;
+          description
+            "The number of packets, delivered by this sub-layer to a
+             higher (sub-)layer, that were addressed to a multicast
+             address at this sub-layer.  For a MAC-layer protocol,
+             this includes both Group and Functional addresses.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCInMulticastPkts";
+        }
+
+        leaf in-discards {
+          type yang:counter32;
+          status deprecated;
+
+          description
+            "The number of inbound packets that were chosen to be
+             discarded even though no errors had been detected to
+             prevent their being deliverable to a higher-layer
+             protocol.  One possible reason for discarding such a
+             packet could be to free up buffer space.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifInDiscards";
+        }
+
+        leaf in-errors {
+          type yang:counter32;
+          status deprecated;
+          description
+            "For packet-oriented interfaces, the number of inbound
+             packets that contained errors preventing them from being
+             deliverable to a higher-layer protocol.  For character-
+             oriented or fixed-length interfaces, the number of
+             inbound transmission units that contained errors
+             preventing them from being deliverable to a higher-layer
+             protocol.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifInErrors";
+        }
+
+        leaf in-unknown-protos {
+          type yang:counter32;
+          status deprecated;
+          description
+            "For packet-oriented interfaces, the number of packets
+             received via the interface that were discarded because
+             of an unknown or unsupported protocol.  For
+             character-oriented or fixed-length interfaces that
+             support protocol multiplexing, the number of
+             transmission units received via the interface that were
+             discarded because of an unknown or unsupported protocol.
+             For any interface that does not support protocol
+             multiplexing, this counter is not present.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifInUnknownProtos";
+        }
+
+        leaf out-octets {
+          type yang:counter64;
+          status deprecated;
+          description
+            "The total number of octets transmitted out of the
+             interface, including framing characters.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCOutOctets";
+        }
+
+        leaf out-unicast-pkts {
+          type yang:counter64;
+          status deprecated;
+          description
+            "The total number of packets that higher-level protocols
+             requested be transmitted and that were not addressed
+             to a multicast or broadcast address at this sub-layer,
+             including those that were discarded or not sent.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifHCOutUcastPkts";
+        }
+
+        leaf out-broadcast-pkts {
+          type yang:counter64;
+          status deprecated;
+
+          description
+            "The total number of packets that higher-level protocols
+             requested be transmitted and that were addressed to a
+             broadcast address at this sub-layer, including those
+             that were discarded or not sent.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCOutBroadcastPkts";
+        }
+
+        leaf out-multicast-pkts {
+          type yang:counter64;
+          status deprecated;
+          description
+            "The total number of packets that higher-level protocols
+             requested be transmitted and that were addressed to a
+             multicast address at this sub-layer, including those
+             that were discarded or not sent.  For a MAC-layer
+             protocol, this includes both Group and Functional
+             addresses.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB -
+                       ifHCOutMulticastPkts";
+        }
+
+        leaf out-discards {
+          type yang:counter32;
+          status deprecated;
+          description
+            "The number of outbound packets that were chosen to be
+             discarded even though no errors had been detected to
+             prevent their being transmitted.  One possible reason
+             for discarding such a packet could be to free up buffer
+             space.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifOutDiscards";
+        }
+
+        leaf out-errors {
+          type yang:counter32;
+          status deprecated;
+          description
+            "For packet-oriented interfaces, the number of outbound
+             packets that could not be transmitted because of errors.
+             For character-oriented or fixed-length interfaces, the
+             number of outbound transmission units that could not be
+             transmitted because of errors.
+             Discontinuities in the value of this counter can occur
+             at re-initialization of the management system and at
+             other times as indicated by the value of
+             'discontinuity-time'.";
+          reference
+            "RFC 2863: The Interfaces Group MIB - ifOutErrors";
+        }
+      }
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-alarm.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-alarm.yang
new file mode 100644
index 000000000..7b7b5e0da
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-alarm.yang
@@ -0,0 +1,181 @@
+module org-openroadm-alarm {
+  namespace "http://org/openroadm/alarm";
+  prefix org-openroadm-alarm;
+
+  import ietf-yang-types {
+    prefix yang;
+    revision-date 2013-07-15;
+  }
+  import org-openroadm-resource {
+    prefix org-openroadm-resource;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-probable-cause {
+    prefix org-openroadm-probable-cause;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of an alarm.
+
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  typedef severity {
+    type enumeration {
+      enum critical {
+        value 1;
+      }
+      enum major {
+        value 2;
+      }
+      enum minor {
+        value 3;
+      }
+      enum warning {
+        value 4;
+      }
+      enum clear {
+        value 5;
+      }
+      enum indeterminate {
+        value 6;
+      }
+    }
+    description
+      "Severity, based on X.733 perceived severity";
+  }
+
+  grouping alarm {
+    leaf id {
+      type string;
+      mandatory true;
+      description
+        "Uniquely id for this alarm, within the given management domain";
+    }
+    container resource {
+      description
+        "Resource under alarm";
+      uses org-openroadm-resource:resource;
+    }
+    container probableCause {
+      description
+        "Probable cause of alarm";
+      uses org-openroadm-probable-cause:probable-cause;
+    }
+    leaf raiseTime {
+      type yang:date-and-time;
+      mandatory true;
+      description
+        "Time alarm was raised";
+    }
+    leaf severity {
+      type severity;
+      mandatory true;
+      description
+        "Severity of alarm. Based on X.733 perceived severity.";
+    }
+    leaf circuit-id {
+      type string;
+      description
+        "Circuit-id for alarm correlation.";
+    }
+    leaf additional-detail {
+      type string;
+      description
+        "Provide additional descriptive text about the probable cause.";
+    }
+    leaf corrective-action {
+      type string;
+      description
+        "Provide recommended corrective actions for this probable cause, i.e. replace or restart a circuit pack, check wiring for the reported source, or secondary failure to be correlated ";
+    }
+  }
+
+  notification alarm-notification {
+    description
+      "Notification sent on initial alarm creation, as well as any time the alarm changes state, including clear";
+    uses alarm;
+  }
+  container active-alarm-list {
+    config false;
+    description
+      "List of currently active alarms. An alarm is removed from this table when the state transitions to clear.";
+    list activeAlarms {
+      key "id";
+      uses alarm;
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-alarm-pm-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-alarm-pm-types.yang
new file mode 100644
index 000000000..d13b85b3f
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-alarm-pm-types.yang
@@ -0,0 +1,81 @@
+module org-openroadm-common-alarm-pm-types {
+  namespace "http://org/openroadm/common-alarm-pm-types";
+  prefix org-openroadm-common-alarm-pm-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common alarm and pm types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  typedef direction {
+    type enumeration {
+      enum tx {
+        value 1;
+      }
+      enum rx {
+        value 2;
+      }
+      enum bidirectional {
+        value 3;
+      }
+      enum notApplicable {
+        value 4;
+      }
+    }
+  }
+
+  typedef location {
+    type enumeration {
+      enum notApplicable {
+        value 1;
+      }
+      enum nearEnd {
+        value 2;
+      }
+      enum farEnd {
+        value 3;
+      }
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-amplifier-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-amplifier-types.yang
new file mode 100644
index 000000000..d5500a173
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-amplifier-types.yang
@@ -0,0 +1,99 @@
+module org-openroadm-common-amplifier-types {
+  namespace "http://org/openroadm/common-amplifier-types";
+  prefix org-openroadm-common-amplifier-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  typedef amplifier-types {
+    type enumeration {
+      enum standard {
+        value 1;
+      }
+    }
+    description
+      "identifier for amplifier type
+       1. standard for amplifier as defined initially in the ROADM MSA specifications
+       To be completed if/when additional amplifier types are required ";
+  }
+
+  typedef line-amplifier-control-mode {
+    type enumeration {
+      enum gainLoss {
+        value 2;
+      }
+      enum off {
+        value 3;
+      }
+    }
+    description
+      "Identifies the line amplifier control mode, either off or gain.";
+  }
+
+  typedef amplifier-gain-range {
+    type enumeration {
+      enum gain-range-1 {
+        value 1;
+      }
+      enum gain-range-2 {
+        value 2;
+      }
+      enum gain-range-3 {
+        value 3;
+      }
+      enum gain-range-4 {
+        value 4;
+      }
+    }
+    description
+      "Operational mode for the amplifier:
+       this parameter allows modeling different operational modes (gain ranges) ,notably for switched-gain amplifiers.
+       It indicates which performance model shall be used by the path feasibility engine.
+       For standard amplifier, or when performance evaluation is based on incremental noise, use gain-range-1.
+       When performance evaluation is based on advanced parameters, specify used gain-range (1 to 4).
+       Up to release 2.1, only gain-range-1 is to be used (default value) ";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-equipment-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-equipment-types.yang
new file mode 100644
index 000000000..f5189c314
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-equipment-types.yang
@@ -0,0 +1,102 @@
+module org-openroadm-common-equipment-types {
+  namespace "http://org/openroadm/common-equipment-types";
+  prefix org-openroadm-common-equipment-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  typedef optic-types {
+    type enumeration {
+      enum gray {
+        value 1;
+      }
+      enum dwdm {
+        value 2;
+      }
+    }
+  }
+
+  typedef equipment-type-enum {
+    type enumeration {
+      enum other {
+        value 1;
+      }
+      enum powerSupply {
+        value 2;
+      }
+      enum shelfProcessor {
+        value 3;
+      }
+      enum crossConnect {
+        value 4;
+      }
+      enum fan {
+        value 5;
+      }
+      enum accessPanel {
+        value 6;
+      }
+      enum circuitPack {
+        value 7;
+      }
+    }
+  }
+
+  grouping equipment-type {
+    leaf type {
+      type equipment-type-enum;
+      config false;
+      mandatory true;
+    }
+    leaf extension {
+      type string;
+      config false;
+      mandatory false;
+      description
+        "Populated with equipment type when enum value is set to 'other'";
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-link-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-link-types.yang
new file mode 100644
index 000000000..5e57dfc0a
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-link-types.yang
@@ -0,0 +1,94 @@
+module org-openroadm-common-link-types {
+  namespace "http://org/openroadm/common-link-types";
+  prefix org-openroadm-common-link-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common link types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  typedef power-dBm {
+    type decimal64 {
+      fraction-digits 2;
+    }
+    units "dBm";
+    description
+      "Power value in dBm.";
+  }
+
+  typedef ratio-dB {
+    type decimal64 {
+      fraction-digits 3;
+    }
+    units "dB";
+    description
+      "Power ratio in dB.";
+  }
+
+  typedef fiber-pmd {
+    type decimal64 {
+      fraction-digits 2;
+    }
+    units "ps/(km[1/2])";
+    description
+      "Polarization Mode Dispersion expressed in ps/km(1/2).";
+  }
+
+  typedef optical-control-mode {
+    type enumeration {
+      enum power {
+        value 1;
+      }
+      enum gainLoss {
+        value 2;
+      }
+      enum off {
+        value 3;
+      }
+    }
+    description
+      "Optical Control Mode: identifies specific algorithm related to power management and general optical control.";
+    reference "openroadm.org: Open ROADM MSA Specification.";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-node-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-node-types.yang
new file mode 100644
index 000000000..d8a914ba0
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-node-types.yang
@@ -0,0 +1,69 @@
+module org-openroadm-common-node-types {
+  namespace "http://org/openroadm/common-node-types";
+  prefix org-openroadm-common-node-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common node types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  typedef node-id-type {
+    type string {
+      length "7..63";
+      pattern '([a-zA-Z][a-zA-Z0-9-]{5,61}[a-zA-Z0-9])' {
+        error-message
+          "A node-id must be 7 to 63 characters in length.
+           A node-id can contain letters, numbers, and hyphens.
+           The first character must be a letter.
+           The last character must be a letter or number.";
+      }
+    }
+    description
+      "Globally unique identifier for a device.";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-optical-channel-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-optical-channel-types.yang
new file mode 100644
index 000000000..42b72f7d2
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-optical-channel-types.yang
@@ -0,0 +1,350 @@
+module org-openroadm-common-optical-channel-types {
+  namespace "http://org/openroadm/common-optical-channel-types";
+  prefix org-openroadm-common-optical-channel-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common optical channel types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-05-30 {
+    description
+      "Version 3.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  identity och-rate-identity {
+    description
+      "A unique och rate identification";
+  }
+
+  identity otsi-rate-identity {
+    status deprecated;
+    description
+      "A unique OTSi rate identification";
+  }
+
+  identity fec-identity {
+    description
+      "A unique FEC identification";
+  }
+
+  identity sc-fec {
+    base fec-identity;
+    description
+      "Staircase FEC identification";
+  }
+
+  identity rs-fec {
+    base fec-identity;
+    description
+      "Reed Solomon FEC identification";
+  }
+
+  identity o-fec {
+    base fec-identity;
+    description
+      "OpenROADM FEC identification";
+  }
+
+  identity foic-identity {
+    description
+      "A unique FOICx.k identification (G.709.3 FlexO-LR and
+       G.709.1 FlexO-SR)";
+  }
+
+  identity flexo-otsi-rate-identity {
+    description
+      "A unique rate identification. Applicable to specify OTSi rate. Also
+       applicable to FOIC rate when associated with FlexO processing
+       (G.709.3 FlexO-LR Table 11-2, G.709.1 FlexO-SR clause 9.2.2
+        Table 11-1, 12-1, 13-1) and G.Sup58.";
+  }
+
+  identity foic1.2 {
+    base foic-identity;
+    description
+      "Applicable to the FlexO type defined in G.Sup58";
+  }
+
+  identity foic1.4 {
+    base foic-identity;
+    description
+      "Applicable to the FlexO type defined in G.709.1 and G.709.3";
+  }
+
+  identity foic2.4 {
+    base foic-identity;
+    description
+      "Applicable to the FlexO type defined in G.709.1";
+  }
+
+  identity foic2.8 {
+    base foic-identity;
+    description
+      "Applicable to the FlexO type defined in G.Sup58";
+  }
+
+  identity foic3.6 {
+    base foic-identity;
+    description
+      "Applicable to the FlexO type defined in future";
+  }
+
+  identity foic4.8 {
+    base foic-identity;
+    description
+      "Applicable to the FlexO type defined in G.709.1";
+  }
+
+  identity foic4.16 {
+    base foic-identity;
+    description
+      "Applicable to the FlexO type defined in G.Sup58";
+  }
+
+  identity R1T-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R900G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R800G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R700G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R600G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R500G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R400G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R300G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R200G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for flexo/otsi rate identity";
+  }
+
+  identity R200G {
+    base och-rate-identity;
+    description
+      "Identity for 200G Rate";
+  }
+
+  identity R100G-flexo-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for otsi/flexo rate identity";
+  }
+
+  identity R100G {
+    base och-rate-identity;
+    description
+      "Identity for 100G Rate";
+  }
+
+  identity R56G-foic-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for otsi rate identity";
+  }
+
+  identity R28G-foic-otsi {
+    base flexo-otsi-rate-identity;
+    description
+      "Applicable instance for otsi rate identity";
+  }
+
+  identity R10.7G {
+    base och-rate-identity;
+    description
+      "Identity for 10.7G Rate";
+  }
+
+  identity R11.1G {
+    base och-rate-identity;
+    description
+      "Identity for 11.1G Rate";
+  }
+
+  typedef frequency-THz {
+    type decimal64 {
+      fraction-digits 8;
+    }
+    units "THz";
+    description
+      "Frequency value in THz.";
+  }
+
+  typedef frequency-GHz {
+    type decimal64 {
+      fraction-digits 5;
+    }
+    units "GHz";
+    description
+      "Frequency value in GHz.";
+  }
+
+  typedef wavelength-duplication-type {
+    type enumeration {
+      enum one-per-srg {
+        value 1;
+        description
+          "The SRG cannot handle wavelength duplication. Attempting to provision a connection on this SRG that uses the same wavelength as an existing service will result in failure.";
+      }
+      enum one-per-degree {
+        value 2;
+        description
+          "The SRG can handle wavelength duplication, but only one per degree. Attempting to provision a connection on this SRG that uses the same wavelength as an existing service will succeed, so long as the connections are not using the same degree.";
+      }
+    }
+    description
+      "One per srg is applied to C/D add/drop group
+       one per degree is applied to C/D/C add drop group";
+  }
+
+  typedef modulation-format {
+    type enumeration {
+      enum bpsk {
+        value 0;
+        description
+          "binary phase-shift keying";
+      }
+      enum dc-dp-bpsk {
+        value 1;
+        description
+          "DC dual-polarization binary phase-shift keying";
+      }
+      enum qpsk {
+        value 2;
+        description
+          "quadrature phase-shift keying";
+      }
+      enum dp-qpsk {
+        value 3;
+        description
+          "dual-polarization binary phase-shift keying";
+      }
+      enum qam16 {
+        value 4;
+        description
+          "quadrature amplitude modulation 16";
+      }
+      enum dp-qam16 {
+        value 5;
+        description
+          "dual-polarization quadrature amplitude modulation 16";
+      }
+      enum dc-dp-qam16 {
+        value 6;
+        description
+          "DC dual-polarization quadrature amplitude modulation 16";
+      }
+      enum qam8 {
+        value 7;
+        description
+          "quadrature amplitude modulation 8";
+      }
+      enum dp-qam8 {
+        value 8;
+        description
+          "dual-polarization quadrature amplitude modulation 8";
+      }
+      enum dc-dp-qam8 {
+        value 9;
+        description
+          "DC dual-polarization quadrature amplitude modulation 8";
+      }
+    }
+    description
+      "Modulation format";
+  }
+
+  typedef provision-mode-type {
+    type enumeration {
+      enum explicit;
+      enum profile;
+    }
+    description
+      "Provision Mode Type On Optical Channel";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-state-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-state-types.yang
new file mode 100644
index 000000000..901a01372
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-state-types.yang
@@ -0,0 +1,113 @@
+module org-openroadm-common-state-types {
+  namespace "http://org/openroadm/common-state-types";
+  prefix org-openroadm-common-state-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  typedef lifecycle-state {
+    type enumeration {
+      enum deployed {
+        value 1;
+      }
+      enum planned {
+        value 2;
+      }
+      enum maintenance {
+        value 3;
+      }
+      enum deploying {
+        value 4;
+      }
+      enum undeploying {
+        value 5;
+      }
+      enum undeployed {
+        value 6;
+      }
+      enum proposed {
+        value 7;
+      }
+      enum draft {
+        value 8;
+      }
+      enum deploy-failed {
+        value 9;
+      }
+      enum undeploy-failed {
+        value 10;
+      }
+      enum deployed-augmented {
+        value 11;
+      }
+      enum deployed-updating {
+        value 12;
+      }
+    }
+    description
+      "Lifecycle state.";
+  }
+
+  typedef state {
+    type enumeration {
+      enum inService {
+        value 1;
+      }
+      enum outOfService {
+        value 2;
+      }
+      enum degraded {
+        value 3;
+      }
+    }
+    description
+      "State that indicates whether the resource is able to provide fulfill its role - carry traffic, etc.";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-types.yang
new file mode 100644
index 000000000..9fc6984b2
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-common-types.yang
@@ -0,0 +1,270 @@
+module org-openroadm-common-types {
+  namespace "http://org/openroadm/common-types";
+  prefix org-openroadm-common-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  typedef activate-notification-type {
+    type enumeration {
+      enum activate {
+        value 1;
+        description
+          "software or database activation";
+      }
+      enum commit {
+        value 2;
+        description
+          "commit the software or database.
+           For software activate, this event can happen in the following scenarios:
+             1) immediately when user issue sw-activate command without validationTimer
+                or if the validationTimer is specified as 00-00-00;
+             2) when user issue cancel-validation-timer before it expires and with accept=true.
+           For database activate, this event can occur in the following scenarios:
+             1) immediately when user issue db-activate command without rollBackTimer
+                or if the rollBackTimer is specified as 00-00-00;
+             2) when user issue cancel-rollback-timer before it expires and with accept=true.";
+      }
+      enum cancel {
+        value 3;
+        description
+          "cancel the database or software activation operation.
+           For software activate, this event can happen in the following cases:
+             1) when the validationTimer expires;
+             2) when the user issues cancel-validation-timer with accept=false.
+           For database activate, this event can happen in the following cases:
+             1) when the rollBackTimer expires;
+             2) when the user issues cancel-rollback-timer with accept=false.";
+      }
+    }
+    description
+      "Type of notification on software or database activation events";
+  }
+
+  typedef rpc-status {
+    type enumeration {
+      enum Successful {
+        value 1;
+      }
+      enum Failed {
+        value 2;
+      }
+    }
+    description
+      "status of RPC ";
+  }
+
+  typedef extended-rpc-status {
+    type enumeration {
+      enum Successful {
+        value 1;
+      }
+      enum Failed {
+        value 2;
+      }
+      enum In-progress {
+        value 3;
+      }
+    }
+    description
+      "status of RPC ";
+  }
+
+  typedef openroadm-version-type {
+    type enumeration {
+      enum 1.0 {
+        value 1;
+        description
+          "value for 1.0";
+      }
+      enum 2.0 {
+        value 2;
+        description
+          "value for 2.0";
+      }
+      enum 2.1 {
+        value 3;
+        description
+          "value for 2.1";
+      }
+      enum 2.2 {
+        value 4;
+        description
+          "value for 2.2";
+      }
+      enum 3.0 {
+        value 5;
+        description
+          "value for 3.0";
+      }
+      enum 3.1 {
+        value 6;
+        description
+          "value for 3.1";
+      }
+      enum 4.0 {
+        value 7;
+        description
+          "value for 4.0";
+      }
+      enum 2.2.1 {
+        value 8;
+        description
+          "value for 2.2.1";
+      }
+      enum 4.1 {
+        value 9;
+        description
+          "value for 4.1";
+      }
+      enum 3.1.1 {
+        value 10;
+        description
+          "value for 3.1.1";
+      }
+      enum 5.0 {
+        value 11;
+        description
+          "value for 5.0";
+      }
+      enum 5.1 {
+        value 12;
+        description
+          "value for 5.1";
+      }
+      enum 6.0 {
+        value 13;
+        description
+          "value for 6.0";
+      }
+      enum 6.1 {
+        value 14;
+        description
+          "value for 6.1";
+      }
+    }
+    description
+      "OpenROADM version enum type";
+  }
+
+  grouping rpc-response-status {
+    leaf status {
+      type rpc-status;
+      mandatory true;
+      description
+        "Successful or Failed";
+    }
+    leaf status-message {
+      type string;
+      description
+        "Gives a more detailed status";
+    }
+  }
+
+  grouping extended-rpc-response-status {
+    leaf status {
+      type extended-rpc-status;
+      mandatory true;
+      description
+        "Successful, Failed or In-progress";
+    }
+    leaf status-message {
+      type string;
+      description
+        "Gives a more detailed status.";
+    }
+  }
+
+  grouping eth-rate-and-burst-size {
+    description
+      "Grouping of ethernet committed rate and burst size.";
+    leaf committed-info-rate {
+      type uint32;
+      mandatory true;
+      description
+        "Committed Information Rate (CIR), unit in Mbps. For example, 1250 Mbps";
+    }
+    leaf committed-burst-size {
+      type uint16;
+      mandatory true;
+      description
+        "Committed Burst Size, unit in 1KB (K Byte).
+                Range 16 | 32 | 64 | 128 | 512 | 1024. Default: 16";
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-device-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-device-types.yang
new file mode 100644
index 000000000..89087d940
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-device-types.yang
@@ -0,0 +1,151 @@
+module org-openroadm-device-types {
+  namespace "http://org/openroadm/device-types";
+  prefix org-openroadm-device-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of device types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+
+  typedef node-types {
+    type enumeration {
+      enum rdm {
+        value 1;
+      }
+      enum xpdr {
+        value 2;
+      }
+      enum ila {
+        value 3;
+      }
+      enum extplug {
+        value 4;
+      }
+    }
+    description
+      "Identifier for node type
+       1. rdm for ROADM
+       2. xpdr for Transponder, Regen
+       3. ila for in-line amplifier
+       4. extplug for external pluggable";
+  }
+
+  typedef xpdr-node-types {
+    type enumeration {
+      enum tpdr {
+        value 1;
+      }
+      enum mpdr {
+        value 2;
+      }
+      enum switch {
+        value 3;
+      }
+      enum regen {
+        value 4;
+      }
+      enum regen-uni {
+        value 5;
+      }
+    }
+    description
+      "Identifier for Xponder node type
+       1. Transponder
+       2. Muxponder
+       3. OTN switchponder
+       4. Regenerator
+       5. Regenerator based on unidirectional model";
+  }
+
+  typedef port-qual {
+    type enumeration {
+      enum roadm-internal {
+        value 1;
+      }
+      enum roadm-external {
+        value 2;
+      }
+      enum xpdr-network {
+        value 3;
+      }
+      enum xpdr-client {
+        value 4;
+      }
+      enum otdr {
+        value 5;
+      }
+      enum switch-network {
+        value 6;
+      }
+      enum switch-client {
+        value 7;
+      }
+      enum ila-external {
+        value 8;
+      }
+      enum ila-internal {
+        value 9;
+      }
+    }
+  }
+
+  grouping physical-location {
+    leaf rack {
+      type string;
+      mandatory false;
+    }
+    leaf shelf {
+      type string;
+      mandatory false;
+    }
+    leaf slot {
+      type string;
+      mandatory false;
+    }
+    leaf subSlot {
+      type string;
+      mandatory false;
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-device.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-device.yang
new file mode 100644
index 000000000..0180be8f5
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-device.yang
@@ -0,0 +1,2179 @@
+module org-openroadm-device {
+  namespace "http://org/openroadm/device";
+  prefix org-openroadm-device;
+
+  import ietf-yang-types {
+    prefix ietf-yang-types;
+    revision-date 2013-07-15;
+  }
+  import ietf-inet-types {
+    prefix ietf-inet-types;
+    revision-date 2013-07-15;
+  }
+  import ietf-netconf {
+    prefix ietf-nc;
+    revision-date 2011-06-01;
+  }
+  import org-openroadm-common-types {
+    prefix org-openroadm-common-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-alarm-pm-types {
+    prefix org-openroadm-common-alarm-pm-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-equipment-types {
+    prefix org-openroadm-common-equipment-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-state-types {
+    prefix org-openroadm-common-state-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-amplifier-types {
+    prefix org-openroadm-common-amplifier-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-link-types {
+    prefix org-openroadm-common-link-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-node-types {
+    prefix org-openroadm-common-node-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-optical-channel-types {
+    prefix org-openroadm-common-optical-channel-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-device-types {
+    prefix org-openroadm-device-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-resource-types {
+    prefix org-openroadm-resource-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-physical-types {
+    prefix org-openroadm-physical-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-user-mgmt {
+    prefix org-openroadm-user-mgmt;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-port-types {
+    prefix org-openroadm-port-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-interfaces {
+    prefix org-openroadm-interfaces;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-swdl {
+    prefix org-openroadm-swdl;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-equipment-states-types {
+    prefix org-openroadm-equipment-states-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-switching-pool-types {
+    prefix org-openroadm-switching-pool-types;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of ROADM device
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.
+     Also contains code components extracted from IETF netconf.  These code components
+     are copyrighted and licensed as follows:
+     Copyright (c) 2016 IETF Trust and the persons identified as the document authors.
+     All rights reserved.
+     This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating
+     to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of
+     publication of this document. Please review these documents carefully, as they
+     describe your rights and restrictions with respect to this document. Code Components
+     extracted from this document must include Simplified BSD License text as described in
+     Section 4.e of the Trust Legal Provisions and are provided without warranty as
+     described in the Simplified BSD License.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-05-30 {
+    description
+      "Version 3.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2017-02-06 {
+    description
+      "Version 1.2.1 - removed pattern for current-datetime in info tree and rpc";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  identity connection-direction-identity {
+    description
+      "Bidrectional capable, or Bi and Unidirectional capable";
+  }
+
+  identity connection-direction_bi {
+    base connection-direction-identity;
+    description
+      "Bidrectional capable";
+  }
+
+  identity connection-direction_bi_and_uni {
+    base connection-direction-identity;
+    description
+      "Bi and Unidirectional capable";
+  }
+
+  typedef interface-ref {
+    type leafref {
+      path "/org-openroadm-device:org-openroadm-device/org-openroadm-device:interface/org-openroadm-device:name";
+    }
+    description
+      "This type is used by data models that need to reference
+       configured interfaces.";
+  }
+
+  grouping create-tech-info-group {
+    leaf shelf-id {
+      type leafref {
+        path "/org-openroadm-device/shelves/shelf-name";
+      }
+      description
+        "shelf ID";
+    }
+    leaf log-file-name {
+      type string;
+      description
+        "The log file name a vendor can specify for a given log collection operation";
+    }
+  }
+
+  grouping device-common {
+    leaf node-id {
+      type org-openroadm-common-node-types:node-id-type;
+      default "openroadm";
+      description
+        "Globally unique identifier for a device.";
+    }
+    leaf node-number {
+      type uint32;
+      description
+        "Number assigned to a ROADM node at a
+         given office";
+    }
+    leaf node-type {
+      type org-openroadm-device-types:node-types;
+      config true;
+      mandatory true;
+      description
+        "Identifier for node-type e.g Roadm, xponder.
+         Once the node-type is configured, it should not be modified.";
+    }
+    leaf clli {
+      type string;
+      description
+        "Common Language Location Identifier.";
+    }
+    uses org-openroadm-physical-types:node-info;
+    leaf ipAddress {
+      type ietf-inet-types:ip-address;
+      description
+        "IP Address of device";
+    }
+    leaf prefix-length {
+      type uint8 {
+        range "0..128";
+      }
+      description
+        "The length of the subnet prefix";
+    }
+    leaf defaultGateway {
+      type ietf-inet-types:ip-address;
+      description
+        "Default Gateway";
+    }
+    leaf source {
+      type enumeration {
+        enum static {
+          value 1;
+        }
+        enum dhcp {
+          value 2;
+        }
+      }
+      config false;
+    }
+    leaf current-ipAddress {
+      type ietf-inet-types:ip-address;
+      config false;
+      description
+        "Current IP Address of device";
+    }
+    leaf current-prefix-length {
+      type uint8 {
+        range "0..128";
+      }
+      config false;
+      description
+        "The current length of the subnet prefix";
+    }
+    leaf current-defaultGateway {
+      type ietf-inet-types:ip-address;
+      config false;
+      description
+        "Current Default Gateway";
+    }
+    leaf macAddress {
+      type ietf-yang-types:mac-address;
+      config false;
+      description
+        "MAC Address of device";
+    }
+    leaf softwareVersion {
+      type string;
+      config false;
+      description
+        "Software version";
+    }
+    leaf software-build {
+      type string;
+      config false;
+      description
+        "Software build version";
+    }
+    leaf openroadm-version {
+      type org-openroadm-common-types:openroadm-version-type;
+      config false;
+      description
+        "openroadm version used on the device";
+    }
+    leaf template {
+      type string;
+      description
+        "Template information used in the deployment.";
+    }
+    leaf current-datetime {
+      type ietf-yang-types:date-and-time;
+      config false;
+      description
+        "The current system date and time in UTC. Format: YYYY-MM-DDTHH:MM:SS.mm+ ";
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of the device node. Whether it is planned, deployed, in maintenance, etc.";
+    }
+    container geoLocation {
+      description
+        "GPS location";
+      leaf latitude {
+        type decimal64 {
+          fraction-digits 16;
+          range "-90 .. 90";
+        }
+        description
+          "[From wikipedia] Latitude is an angle (defined below)
+           which ranges from 0 at the Equator to 90 (North or
+           South) at the poles";
+      }
+      leaf longitude {
+        type decimal64 {
+          fraction-digits 16;
+          range "-180 .. 180";
+        }
+        description
+          "[From wikipedia] The longitude is measured as the
+           angle east or west from the Prime Meridian, ranging
+           from 0 at the Prime Meridian to +180 eastward and
+           -180 westward.";
+      }
+    }
+  }
+
+  grouping slot-info {
+    description
+      "slots information. To be populated by NE during retrieval.";
+    leaf slot-name {
+      type string;
+      description
+        "The name of this slot.";
+    }
+    leaf label {
+      type string;
+      description
+        "Faceplate label";
+    }
+    leaf provisioned-circuit-pack {
+      type leafref {
+        path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+      }
+      description
+        "The supported circuit-pack. It will be empty if holder status is empty-not-prov, or installed-not-prov";
+    }
+    leaf slot-status {
+      type enumeration {
+        enum empty-not-prov {
+          value 1;
+          description
+            "Slot is empty and not provisioned";
+        }
+        enum empty-prov-match {
+          value 2;
+          status deprecated;
+          description
+            "(Deprecated) Slot is empty and expected type is provisioned";
+        }
+        enum empty-prov-mismatch {
+          value 3;
+          status deprecated;
+          description
+            "(Deprecated) Slot is empty and an unsupported type is provisioned";
+        }
+        enum installed-not-prov {
+          value 4;
+          description
+            "Slot is occupied but not provisioned";
+        }
+        enum installed-prov-match {
+          value 5;
+          description
+            "Slot is occupied with matching provisioned type";
+        }
+        enum installed-prov-mismatch {
+          value 6;
+          description
+            "Slot is occupied with mismatched provisioned type";
+        }
+        enum empty-prov {
+          value 7;
+          description
+            "Slot is empty and provisioned";
+        }
+      }
+    }
+  }
+
+  grouping shelves {
+    list shelves {
+      key "shelf-name";
+      uses shelf;
+    }
+  }
+
+  grouping user-description-grp {
+    description
+      "user description group";
+    leaf user-description {
+      type string;
+      description
+        "user provided description";
+    }
+  }
+
+  grouping shelf {
+    leaf shelf-name {
+      type string;
+      description
+        "Unique identifier for this shelf within a device";
+    }
+    leaf shelf-type {
+      type string;
+      mandatory true;
+      description
+        "The shelf type: describe the shelf with a unique string.";
+    }
+    leaf rack {
+      type string;
+      description
+        "Reflect the shelf physical location data including floor, aisle, bay values.";
+    }
+    leaf shelf-position {
+      type string;
+      description
+        "Reflect the shelf vertical position within an equipment bay.";
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of shelf. Whether it is planned, deployed, in maintenance, etc.";
+    }
+    leaf administrative-state {
+      type org-openroadm-equipment-states-types:admin-states;
+      mandatory true;
+      description
+        "Admin State of the shelf";
+    }
+    uses org-openroadm-physical-types:common-info;
+    leaf equipment-state {
+      type org-openroadm-equipment-states-types:states;
+      description
+        "equipment state for the shelf, used to track the lifecycle state.";
+    }
+    leaf is-physical {
+      type boolean;
+      config false;
+      mandatory true;
+      description
+        "is the entity physical or logical";
+    }
+    leaf is-passive {
+      type boolean;
+      config false;
+      mandatory true;
+      description
+        "is the entity passive and not actively managed by the device;
+         e.g., no physical inventory or plug-in notification supported";
+    }
+    leaf faceplate-label {
+      type string;
+      config false;
+      mandatory true;
+      description
+        "label on the faceplace silk screening";
+    }
+    uses user-description-grp;
+    leaf due-date {
+      type ietf-yang-types:date-and-time;
+      description
+        "due date for the shelf.";
+    }
+    list slots {
+      key "slot-name";
+      config false;
+      description
+        "List of slots on this shelf. To be populated by NE during retrieval.";
+      uses slot-info;
+    }
+  }
+
+  grouping circuit-packs {
+    list circuit-packs {
+      key "circuit-pack-name";
+      description
+        "List of circuit packs. This includes common equipment, like fans, power supplies, etc.";
+      leaf circuit-pack-type {
+        type string;
+        mandatory true;
+        description
+          "Type of circuit-pack";
+      }
+      leaf circuit-pack-product-code {
+        type string;
+        description
+          "Product Code for the circuit-pack";
+      }
+      uses circuit-pack;
+    }
+  }
+
+  grouping circuit-pack-features {
+    leaf software-load-version {
+      type string;
+      config false;
+      description
+        "Software version running on the circuit pack.";
+    }
+    list circuit-pack-features {
+      key "to-be-deleted";
+      config false;
+      leaf to-be-deleted {
+        type string;
+        description
+        "Key to be deleted.";
+      }
+      container feature {
+        description
+          "List of features supported by the installed load and indications on whether the features have been applied or not.";
+        leaf description {
+          type string;
+          description
+            "Feature description.";
+        }
+        leaf boot {
+          type boolean;
+          description
+            "Flag to indicate boot loader or unprotected firmware update required";
+        }
+        leaf activated {
+          type boolean;
+          description
+            "Indicator if the feature has been activated.";
+        }
+      }
+    }
+    list circuit-pack-components {
+      key "to-be-deleted";
+      config false;
+      leaf to-be-deleted {
+        type string;
+        description
+        "Key to be deleted.";
+      }
+      container component {
+        description
+          "Optional list of components on the circuit-pack and the load information applicable to those components.  If a load is not up to date and will upgrade when a cold restart occurs, the version that will be applied should also be listed.  If there is no misalignment, this does not need to be reported.";
+        leaf name {
+          type string;
+          description
+            "Name of a component on the circuit-pack that can have a load applied to it.";
+        }
+        leaf boot {
+          type boolean;
+          description
+            "Flag to indicate boot loader or unprotected firmware update required";
+        }
+        leaf current-version {
+          type string;
+          description
+            "Name of the load version currently running on the component.";
+        }
+        leaf version-to-apply {
+          type string;
+          description
+            "Name of the load version for the component that will be applied when cold restart occurs on the circuit-pack.";
+        }
+      }
+    }
+  }
+
+  grouping circuit-pack {
+    leaf circuit-pack-name {
+      type string;
+      description
+        "Unique identifier for this circuit-pack within a device";
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of circuit-pack. Whether it is planned, deployed, in maintenance, etc.";
+    }
+    leaf administrative-state {
+      type org-openroadm-equipment-states-types:admin-states;
+      mandatory true;
+      description
+        "Administrative state of circuit-pack";
+    }
+    uses org-openroadm-physical-types:common-info;
+    container circuit-pack-category {
+      config false;
+      description
+        "General type of circuit-pack";
+      uses org-openroadm-common-equipment-types:equipment-type;
+    }
+    leaf equipment-state {
+      type org-openroadm-equipment-states-types:states;
+      description
+        "Equipment state, which complements operational state.";
+    }
+    leaf circuit-pack-mode {
+      type string;
+      default "NORMAL";
+      description
+        "Circuit-pack mode allowed. e.g. NORMAL or REGEN";
+    }
+    leaf shelf {
+      type leafref {
+        path "/org-openroadm-device/shelves/shelf-name";
+      }
+      mandatory true;
+    }
+    leaf slot {
+      type string;
+      mandatory true;
+    }
+    leaf subSlot {
+      type string;
+      mandatory false;
+    }
+    leaf is-pluggable-optics {
+      type boolean;
+      config false;
+      mandatory true;
+      description
+        "True if circuitpack is pluggable optics";
+    }
+    leaf is-physical {
+      type boolean;
+      config false;
+      mandatory true;
+      description
+        "is the entity physical or logical";
+    }
+    leaf is-passive {
+      type boolean;
+      config false;
+      mandatory true;
+      description
+        "is the entity passive and not actively managed by the device;
+         e.g., no physical inventory or plug-in notification supported";
+    }
+    leaf faceplate-label {
+      type string;
+      config false;
+      mandatory true;
+      description
+        "label on the faceplace silk screening";
+    }
+    uses user-description-grp;
+    leaf due-date {
+      type ietf-yang-types:date-and-time;
+      description
+        "due date for this circuit-pack.";
+    }
+    container parent-circuit-pack {
+      description
+        "In the case of circuit packs that contain other equipment (modules or pluggables), this captures the hierarchy of that equipment.  It is a vendor specific design decision if the ports for single-port pluggables are modeled as children of the parent circuit-pack, or as children of the pluggable circuit-pack contained in the parent circuit-pack.  For modules with multiple ports, it is recommended that ports be children of the module and not the carrier, to help in fault correlation and isolation in the case of a module failure.";
+      uses circuit-pack-name-g;
+      leaf cp-slot-name {
+        type string;
+        description
+          "Slot name on parent-circuit-pack.";
+      }
+    }
+    list cp-slots {
+      key "slot-name";
+      config false;
+      description
+        "List of circuit-pack slots on this circuit-pack. To be populated by NE during retrieval.";
+      uses slot-info;
+      leaf slot-type {
+        type enumeration {
+          enum pluggable-optics-holder {
+            value 1;
+            description
+              "slot accepts dedicated pluggable port circuit-pack";
+          }
+          enum other {
+            value 2;
+            description
+              "slot accepts parent circuit-pack";
+          }
+        }
+      }
+    }
+    uses circuit-pack-features;
+    list ports {
+      key "port-name";
+      description
+        "List of ports on this circuit-pack. Note that pluggables are considered independent circuit-packs.  All ports that are physically present on a pluggable, need to be modeled as a port against that pluggable circuit-pack, and not against the parent circuit-pack.";
+      uses port;
+      container roadm-port {
+        when "../port-qual='roadm-external'";
+        uses org-openroadm-port-types:roadm-port;
+      }
+      container transponder-port {
+        when "../port-qual='xpdr-network' or ../port-qual='xpdr-client' or ../port-qual='switch-network' or ../port-qual='switch-client'";
+        uses org-openroadm-port-types:common-port;
+      }
+      container otdr-port {
+        when "../port-qual='otdr'";
+        description
+          "Settings for otdr port.";
+        leaf launch-cable-length {
+          type uint32;
+          units "m";
+          default "30";
+        }
+        leaf port-direction {
+          type org-openroadm-common-alarm-pm-types:direction;
+        }
+      }
+      container ila-port {
+        when "../port-qual='ila-external'";
+        uses org-openroadm-port-types:common-port;
+      }
+    }
+  }
+
+  grouping odu-connection {
+    description
+      "Grouping used to define odu-connections.";
+    leaf connection-name {
+      type string;
+      description
+        "roadm-connection and odu-connection share the same resource-type and resource definition (e.g. connection)";
+    }
+    leaf direction {
+      type enumeration {
+        enum unidirectional {
+          value 1;
+        }
+        enum bidirectional {
+          value 2;
+        }
+      }
+      default "bidirectional";
+      description
+        "Directionality of connection. If bidirectional, both directions are created.";
+    }
+    container source {
+      leaf src-if {
+        type leafref {
+          path "/org-openroadm-device/interface/name";
+        }
+        mandatory true;
+      }
+    }
+    container destination {
+      leaf dst-if {
+        type leafref {
+          path "/org-openroadm-device/interface/name";
+        }
+        mandatory true;
+      }
+    }
+  }
+
+  grouping connection {
+    description
+      "Grouping used to define connections.";
+    leaf connection-name {
+      type string;
+    }
+    leaf opticalControlMode {
+      type org-openroadm-common-link-types:optical-control-mode;
+      default "off";
+      description
+        "Whether connection is currently in power or gain/loss mode";
+      reference "openroadm.org: Open ROADM MSA Specification.";
+    }
+    leaf target-output-power {
+      type org-openroadm-common-link-types:power-dBm;
+      description
+        "The output target power for this connection. When set, the ROADM will work to ensure that current-output-power reaches this level.";
+    }
+    container source {
+      leaf src-if {
+        type leafref {
+          path "/org-openroadm-device/interface/name";
+        }
+        mandatory true;
+      }
+    }
+    container destination {
+      leaf dst-if {
+        type leafref {
+          path "/org-openroadm-device/interface/name";
+        }
+        mandatory true;
+      }
+    }
+  }
+
+  grouping mc-capabilities-grp {
+    description
+      "Media channel capabilities grouping";
+    leaf-list mc-capabilities {
+      type leafref {
+        path "/org-openroadm-device/mc-capability-profile/profile-name";
+      }
+      config false;
+      description
+        "Media channel capabilities";
+    }
+  }
+
+  grouping degree {
+    leaf degree-number {
+      type uint16;
+      must 'not( current() > /org-openroadm-device/info/max-degrees) and current() > 0' {
+        error-message "Degree not supported by device ";
+        description
+          "Validating if the degree is supported by device";
+      }
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of degree. Whether it is planned, deployed, in maintenance, etc.";
+    }
+    leaf max-wavelengths {
+      type uint16;
+      config false;
+      mandatory true;
+      description
+        "maximum number of wavelengths";
+    }
+    list circuit-packs {
+      key "index";
+      description
+        "list for Cards associated with a degree";
+      leaf index {
+        type uint32;
+      }
+      uses circuit-pack-name-g {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+      }
+    }
+    list connection-ports {
+      key "index";
+      description
+        "Port associated with degree: One if bi-directional; two if uni-directional";
+      leaf index {
+        type uint32;
+      }
+      uses port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+    }
+    container otdr-port {
+      description
+        "otdr port associated with degree.";
+      uses port-name;
+    }
+    uses mc-capabilities-grp;
+  }
+
+  grouping amplifier {
+    leaf amp-number {
+      type uint8 {
+        range "1..128";
+      }
+      description
+        "Unique identifier/number for the amplifier entry which corresponds to a logical amplifier";
+    }
+    leaf amp-type {
+      type org-openroadm-common-amplifier-types:amplifier-types;
+      config false;
+      mandatory true;
+      description
+        "Amplifier type";
+    }
+    leaf control-mode {
+      type org-openroadm-common-amplifier-types:line-amplifier-control-mode;
+      default "off";
+      description
+        "Whether the line amplifier is currently in off or gainLoss mode. control-mode can only be set to gainLoss when target-gain, target-tilt and egress-average-channel-power are set and the OMS interfaces are provisioned. The amplifier will be turned off when the control-mode is set to off";
+    }
+    leaf amp-gain-range {
+      type org-openroadm-common-amplifier-types:amplifier-gain-range;
+      default "gain-range-1";
+      config false;
+      description
+        "Amplifier gain-range (gain-range 1 to 4 for switched gain amplifiers)
+         gain-range-1 (default value) for standard amplifiers";
+    }
+    leaf target-gain {
+      type org-openroadm-common-link-types:ratio-dB;
+      config true;
+      description
+        "Target overall Amplifier Signal gain, excluding ASE, including VOA attenuation.
+         Defined as optional for ODL support, but shall be considered as mandatory and provided
+         by the controller when the control-mode is set to gainLoss for amplifier setting";
+    }
+    leaf target-tilt {
+      type org-openroadm-common-link-types:ratio-dB;
+      config true;
+      description
+        "Target tilt configured in case of smart EDFA.
+         Tilt value provided as specified in Open-ROADM-MSA-specifications spreadsheet
+         Defined as optional for ODL support, but shall be considered as mandatory and provided
+         by the controller when the control-mode is set to gainLoss for amplifier setting";
+    }
+    leaf egress-average-channel-power {
+      type org-openroadm-common-link-types:power-dBm;
+      config true;
+      description
+        "Based upon the total max power across the 4.8 THz passband.
+         Defined as optional for ODL support, but shall be considered as mandatory and provided
+         by the controller when the control-mode is set to gainLoss for amplifier setting";
+    }
+    leaf out-voa-att {
+      type org-openroadm-common-link-types:ratio-dB;
+      config false;
+      description
+        "Used to provide the value output VOA attenuation, optional";
+    }
+    leaf partner-amp {
+      type leafref {
+        path "/org-openroadm-device/line-amplifier/amp-number";
+      }
+      config false;
+      description
+        "amp-number of amp module that is functionally associated to the amplifier
+         in the opposite direction";
+    }
+    leaf ila-direction-label {
+      type string;
+      description
+        "Amplifier direction. Each operators may have its own naming convention.
+         Shall be consistent with tx-instance-port-direction-label and rx-instance-port-direction-label.";
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of the amplifier. Whether it is planned, deployed, in maintenance, etc.";
+    }
+  }
+
+  grouping external-links {
+    description
+      "YANG definitions for external links..
+       - physical links between ROADMs and between the ROADMs and XPonders, which can be added and removed manually.";
+    list external-link {
+      key "external-link-name";
+      uses external-link;
+    }
+  }
+
+  grouping external-link {
+    leaf external-link-name {
+      type string;
+    }
+    container source {
+      uses org-openroadm-resource-types:device-id {
+        refine "node-id" {
+          mandatory true;
+        }
+      }
+      uses org-openroadm-resource-types:port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+    }
+    container destination {
+      uses org-openroadm-resource-types:device-id {
+        refine "node-id" {
+          mandatory true;
+        }
+      }
+      uses org-openroadm-resource-types:port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+    }
+  }
+
+  grouping internal-links {
+    list internal-link {
+      key "internal-link-name";
+      config false;
+      uses internal-link;
+    }
+  }
+
+  grouping internal-link {
+    leaf internal-link-name {
+      type string;
+    }
+    container source {
+      uses port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+    }
+    container destination {
+      uses port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+    }
+  }
+
+  grouping physical-links {
+    description
+      "YANG definitions for physical links.
+       - physical links (fiber, cables,etc.) between ports within a node. ";
+    list physical-link {
+      key "physical-link-name";
+      uses physical-link;
+    }
+  }
+
+  grouping physical-link {
+    leaf physical-link-name {
+      type string;
+    }
+    leaf is-physical {
+      type boolean;
+      description
+        "is the entity physical or logical";
+    }
+    uses user-description-grp;
+    container source {
+      uses port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+    }
+    container destination {
+      uses port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of the physical link. Whether it is planned, deployed, in maintenance, etc.";
+    }
+  }
+
+  grouping srg {
+    leaf max-add-drop-ports {
+      type uint16;
+      config false;
+      mandatory true;
+      description
+        "The max number of ports available for a given srg";
+    }
+    leaf current-provisioned-add-drop-ports {
+      type uint16;
+      config false;
+      mandatory true;
+      description
+        "The number of ports currently provisioned for a given srg.";
+    }
+    leaf srg-number {
+      type uint16;
+      must 'not(current()>/org-openroadm-device/info/max-srgs) and current()>0' {
+        error-message "invalid SRG";
+        description
+          "Validating if the srg is supported by add/drop group";
+      }
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of shared-risk-group. Whether it is planned, deployed, in maintenance, etc.";
+    }
+    leaf wavelength-duplication {
+      type org-openroadm-common-optical-channel-types:wavelength-duplication-type;
+      config false;
+      mandatory true;
+      description
+        "Whether the SRG can handle duplicate wavelengths and if so to what extent.";
+    }
+    list circuit-packs {
+      key "index";
+      description
+        "list for Cards associated with an add/drop group and srg";
+      leaf index {
+        type uint32;
+      }
+      uses circuit-pack-name-g {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+      }
+    }
+    uses mc-capabilities-grp;
+  }
+
+  grouping xponder {
+    leaf xpdr-number {
+      type uint16;
+      must 'current() > 0' {
+        error-message "Xponder not supported by device ";
+        description
+          "Validating if the Xponder is supported by device";
+      }
+    }
+    leaf xpdr-type {
+      type org-openroadm-device-types:xpdr-node-types;
+      mandatory true;
+      description
+        "Identifier for xponder-type e.g Transponder, Muxponder";
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of xponder. Whether it is planned, deployed, in maintenance, etc.";
+    }
+    leaf recolor {
+      type boolean;
+      config false;
+      description
+        "Indication if recolor is supported";
+    }
+    list xpdr-port {
+      key "index";
+      description
+        "Network Ports with in a Xponder";
+      leaf index {
+        type uint32;
+      }
+      uses port-name {
+        refine "circuit-pack-name" {
+          mandatory true;
+        }
+        refine "port-name" {
+          mandatory true;
+        }
+      }
+      leaf eqpt-srg-id {
+        type uint32;
+        description
+          "Shared Risk Group identifier. All ports in a circuit-pack will have same srg-id";
+      }
+    }
+  }
+
+  grouping degree-number {
+    leaf degree-number {
+      type leafref {
+        path "/org-openroadm-device/degree/degree-number";
+      }
+      description
+        "Degree identifier. Unique within the context of a device.";
+    }
+  }
+
+  grouping circuit-pack-name-g {
+    leaf circuit-pack-name {
+      type leafref {
+        path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+      }
+      description
+        "Circuit-Pack identifier. Unique within the context of a device.";
+    }
+  }
+
+  grouping port-name {
+    uses circuit-pack-name-g;
+    leaf port-name {
+      type leafref {
+        path "/org-openroadm-device/circuit-packs[circuit-pack-name=current()/../circuit-pack-name]/ports/port-name";
+      }
+      description
+        "Port identifier. Unique within the context of a circuit-pack.";
+    }
+  }
+
+  grouping srg-number {
+    leaf srg-number {
+      type leafref {
+        path "/org-openroadm-device/shared-risk-group/srg-number";
+      }
+      description
+        "Shared Risk Group identifier. Unique within the context of a device.";
+    }
+  }
+
+  grouping supporting-port-name {
+    leaf supporting-circuit-pack-name {
+      type leafref {
+        path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+      }
+      description
+        "Identifier of the supporting circuit-pack.";
+    }
+    leaf supporting-port {
+      type leafref {
+        path "/org-openroadm-device/circuit-packs[circuit-pack-name=current()/../supporting-circuit-pack-name]/ports/port-name";
+      }
+      description
+        "Identifier of the supporting port.";
+    }
+  }
+
+  grouping supporting-circuit-pack-list-grp {
+    description
+      "supporting circuit pack list grouping";
+    list supporting-port-list {
+      key "index";
+      description
+        "supporting port list";
+      leaf index {
+        type uint8;
+        description
+          "supporting circuit pack index";
+      }
+      leaf circuit-pack-name {
+        type leafref {
+          path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+        }
+        mandatory true;
+        description
+          "The supported circuit-pack. It will be empty if holder status is empty-not-prov, or installed-not-prov";
+      }
+      leaf-list port-list {
+        type leafref {
+          path "/org-openroadm-device/circuit-packs[circuit-pack-name=current()/../circuit-pack-name]/ports/port-name";
+        }
+        description
+          "port list";
+      }
+    }
+  }
+
+  grouping interface-name {
+    description
+      "interface name grouping";
+    leaf interface-name {
+      type leafref {
+        path "/org-openroadm-device/interface/name";
+      }
+      config false;
+      description
+        "Name of an interface. Unique within the context of a device.";
+    }
+  }
+
+  grouping interfaces-grp {
+    description
+      "OpenROADM Interface configuration parameters.";
+    list interface {
+      key "name";
+      description
+        "The list of configured interfaces on the device.";
+      leaf name {
+        type string;
+        description
+          "The name of the interface.";
+      }
+      leaf description {
+        type string;
+        description
+          "A textual description of the interface.";
+      }
+      leaf type {
+        type identityref {
+          base org-openroadm-interfaces:interface-type;
+        }
+        mandatory true;
+        description
+          "The type of the interface.";
+      }
+      leaf lifecycle-state {
+        type org-openroadm-common-state-types:lifecycle-state;
+        description
+          "Lifecycle State of interface. Whether it is planned, deployed, in maintenance, etc.";
+      }
+      leaf administrative-state {
+        type org-openroadm-equipment-states-types:admin-states;
+        mandatory true;
+      }
+      leaf operational-state {
+        type org-openroadm-common-state-types:state;
+        config false;
+        mandatory true;
+      }
+      leaf circuit-id {
+        type string {
+          length "0..45";
+        }
+        description
+          "circuit identifier/user label,
+           can be used in alarm correlation and/or connection management ";
+      }
+      leaf supporting-interface {
+        type leafref {
+          path "/org-openroadm-device/interface/name";
+        }
+        description
+          "supporting interface";
+      }
+      uses supporting-port-name;
+      leaf-list supporting-interface-list {
+        type leafref {
+          path "/org-openroadm-device/interface/name";
+        }
+        description
+          "supporting interface list";
+      }
+      uses supporting-circuit-pack-list-grp;
+    }
+  }
+
+  grouping protection-groups {
+    description
+      "OpenROADM facility protection configuration parameters.";
+    container protection-grps {
+      description
+        "The list of configured protection groups on the device.";
+    }
+  }
+
+  grouping port {
+    description
+      "Grouping of attributes related to a port object.";
+    leaf port-name {
+      type string;
+      mandatory true;
+      description
+        "Identifier for a port, unique within a circuit pack";
+    }
+    uses supporting-circuit-pack-list-grp;
+    leaf port-type {
+      type string;
+      description
+        "Type of the pluggable or fixed port.";
+    }
+    leaf port-qual {
+      type org-openroadm-device-types:port-qual;
+    }
+    leaf port-wavelength-type {
+      type org-openroadm-port-types:port-wavelength-types;
+      config false;
+      description
+        "Type of port - single, multiple-wavelength, etc.";
+    }
+    leaf port-direction {
+      type org-openroadm-common-alarm-pm-types:direction;
+      config false;
+      mandatory true;
+      description
+        "Whether port is uni (tx/rx) or bi-directional and";
+    }
+    leaf label {
+      type string;
+      config false;
+      status deprecated;
+      description
+        "Faceplate label";
+    }
+    leaf is-physical {
+      type boolean;
+      config false;
+      mandatory true;
+      description
+        "is the entity physical or logical";
+    }
+    leaf faceplate-label {
+      type string;
+      config false;
+      mandatory true;
+      description
+        "label on the faceplace silk screening";
+    }
+    uses user-description-grp;
+    leaf circuit-id {
+      type string {
+        length "0..45";
+      }
+      description
+        "circuit identifier/user label,
+         can be used in alarm correlation and/or connection management ";
+    }
+    leaf lifecycle-state {
+      type org-openroadm-common-state-types:lifecycle-state;
+      description
+        "Lifecycle State of port. Whether it is planned, deployed, in maintenance, etc.";
+    }
+    leaf administrative-state {
+      type org-openroadm-equipment-states-types:admin-states;
+      default "outOfService";
+      description
+        "Administrative state of port. The value of this field independent of the state of its contained and containing resources.  Setting this a port to administratively down will impact both its operational state, as well the operational state of its contained resources.  If this port is an endpoint to a connection, internal-link, physical-link, etc, then administratively disabling this port will impact the operational state of those items unless they are using some form of port-protection schema.";
+    }
+    leaf operational-state {
+      type org-openroadm-common-state-types:state;
+      config false;
+      mandatory true;
+      description
+        "Operational state of a port";
+    }
+    leaf-list supported-interface-capability {
+      type identityref {
+        base org-openroadm-port-types:supported-if-capability;
+      }
+      config false;
+      description
+        "Interface types supported on this port";
+    }
+    leaf logical-connection-point {
+      type string;
+      description
+        "delete or replace with list logical-ports or connections?";
+    }
+    container partner-port {
+      config false;
+      description
+        "For ports which are not identified as having a direction of bidirectional, this field is used to identify the port which corresponds to the reverse direction. A port pair should include a port for each direction (tx, rx) and report their mate as partner-port.";
+      uses port-name;
+    }
+    container parent-port {
+      config false;
+      description
+        "In the case of port hierarchy, this is the parent port, which is also modeled as port within this circuit-pack. This is used in the case of a port that supports a parallel connector that contains subports.  The parent-port of the subport will be the port that contains this subport.  This can be used to help isolate faults when a single fault on a parallel connector introduces symptomatic failures on the contained subports.";
+      uses port-name;
+    }
+    list interfaces {
+      key "interface-name";
+      config false;
+      description
+        "List of the interfaces this port supports.  This is a list of names of instances in the flat instance list.  Implementations must provide the list of interfaces for port that has interfaces provisioned on that port.";
+      uses interface-name;
+    }
+    uses mc-capabilities-grp;
+  }
+
+  // grouping org-openroadm-device-container-g {
+    container org-openroadm-device {
+      container info {
+        uses device-common;
+        leaf max-degrees {
+          type uint16;
+          config false;
+          description
+            "Max. number of degrees supported by device";
+        }
+        leaf max-srgs {
+          type uint16;
+          config false;
+          description
+            "Max. number of SRGs in an add/drop group";
+        }
+        leaf max-num-bin-15min-historical-pm {
+          type uint16;
+          config false;
+          description
+            "Max. number of bin the NE support for 15min historical PM";
+        }
+        leaf max-num-bin-24hour-historical-pm {
+          type uint16;
+          config false;
+          description
+            "Max. number of bin the NE support for 24hour historical PM";
+        }
+      }
+      container users {
+        description
+          "Stores a list of users";
+        uses org-openroadm-user-mgmt:user-profile;
+      }
+      container pending-sw {
+        config false;
+        description
+          "pending software information";
+        uses org-openroadm-swdl:sw-bank;
+      }
+      container database-info {
+        config false;
+        description
+          "database restore information";
+        uses org-openroadm-swdl:database-info-group;
+      }
+      uses shelves;
+      uses circuit-packs;
+      uses interfaces-grp;
+      uses protection-groups;
+      container protocols {
+        description
+          "Contains the supported protocols";
+        leaf lifecycle-state {
+          type org-openroadm-common-state-types:lifecycle-state;
+          description
+            "Lifecycle State of the protocols. Whether it is planned or deployed, etc.";
+        }
+      }
+      uses internal-links;
+      uses physical-links;
+      uses external-links;
+      list degree {
+        when "/org-openroadm-device/info/node-type='rdm'";
+        key "degree-number";
+        uses degree;
+      }
+      list shared-risk-group {
+        when "/org-openroadm-device/info/node-type='rdm'";
+        key "srg-number";
+        uses srg;
+      }
+      list line-amplifier {
+        when "/org-openroadm-device/info/node-type='ila'";
+        key "amp-number";
+        description
+          "lists amplifiers in different directions";
+        uses amplifier;
+        list circuit-pack {
+          key "index";
+          description
+            "list for Cards associated with an amplifier";
+          leaf index {
+            type uint32;
+          }
+          uses circuit-pack-name-g {
+            refine "circuit-pack-name" {
+              mandatory true;
+            }
+          }
+        }
+        list line-port {
+          key "port-direction";
+          description
+            "Port associated with an amplifier which face the line (ila-external): traffic port.";
+          leaf port-direction {
+            type org-openroadm-common-alarm-pm-types:direction;
+            config true;
+            mandatory true;
+            description
+              "partly allows identifying ports associated with logical amp :TX for egress, RX for ingress
+               TXRX in case of bidirectional port";
+          }
+          leaf tx-instance-port-direction-label {
+            type string;
+            config true;
+            description
+              "Complements ports identification. Used notably in case of bidirectional ports,
+               and/or in multi-degree amplifier nodes. Allows associating one of the directions
+               specified in ila-direction-label. Shall be consistent with ila-direction-label";
+          }
+          leaf rx-instance-port-direction-label {
+            type string;
+            config true;
+            description
+              "Complements ports identification. Used notably in case of bidirectional ports,
+               and/or in multi-degree amplifier nodes. Allows associating one of the directions
+               specified in ila-direction-label. Shall be consistent with ila-direction-label";
+          }
+          uses port-name {
+            refine "circuit-pack-name" {
+              mandatory true;
+            }
+            refine "port-name" {
+              mandatory true;
+            }
+          }
+        }
+        list osc-port {
+          key "port-direction";
+          description
+            "Ports associated with OSC";
+          leaf port-direction {
+            type org-openroadm-common-alarm-pm-types:direction;
+            config true;
+            mandatory true;
+            description
+              "allows identifying ports associated with logical amp :
+               TX for OSC circuit-pack IN RX for OSC circuit-pack OUT";
+          }
+          uses port-name {
+            refine "circuit-pack-name" {
+              mandatory true;
+            }
+            refine "port-name" {
+              mandatory true;
+            }
+          }
+        }
+        list otdr-port {
+          key "otdr-direction";
+          description
+            "otdr ports associated with an ILA";
+          leaf otdr-direction {
+            type string;
+            config true;
+            description
+              "allows identifying associated logical amp port in which OTDR is launched:
+               corresponds to rx-instance-port-direction-label of corresponding amplifier line-port";
+          }
+          uses port-name {
+            refine "circuit-pack-name" {
+              mandatory true;
+            }
+            refine "port-name" {
+              mandatory true;
+            }
+          }
+        }
+      }
+      list xponder {
+        when "/org-openroadm-device/info/node-type='xpdr'";
+        key "xpdr-number";
+        uses xponder;
+      }
+      list roadm-connections {
+        when "/org-openroadm-device/info/node-type='rdm'";
+        key "connection-name";
+        uses connection;
+      }
+      list odu-connection {
+        when "/org-openroadm-device/info/node-type='xpdr'";
+        key "connection-name";
+        uses odu-connection;
+      }
+      list connection-map {
+        key "connection-map-number";
+        config false;
+        leaf connection-map-number {
+          type uint32;
+          description
+            "Unique identifier for this connection-map entry";
+        }
+        container source {
+          leaf circuit-pack-name {
+            type leafref {
+              path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+            }
+            mandatory true;
+          }
+          leaf port-name {
+            type leafref {
+              path "/org-openroadm-device/circuit-packs[circuit-pack-name=current()/../circuit-pack-name]/ports/port-name";
+            }
+            mandatory true;
+            description
+              "Port identifier. Unique within the context of a circuit-pack.";
+          }
+        }
+        list destination {
+          key "circuit-pack-name port-name";
+          min-elements 1;
+          leaf circuit-pack-name {
+            type leafref {
+              path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+            }
+            mandatory true;
+          }
+          leaf port-name {
+            type leafref {
+              path "/org-openroadm-device/circuit-packs[circuit-pack-name=current()/../circuit-pack-name]/ports/port-name";
+            }
+            mandatory true;
+            description
+              "Port identifier. Unique within the context of a circuit-pack.";
+          }
+        }
+      }
+      list odu-switching-pools {
+        when "/org-openroadm-device/info/node-type='xpdr'";
+        key "switching-pool-number";
+        config false;
+        leaf switching-pool-number {
+          type uint16;
+          description
+            "Unique identifier for this odu-switching-pool";
+        }
+        leaf switching-pool-type {
+          type org-openroadm-switching-pool-types:switching-pool-types;
+          description
+            "Blocking/Non-Blocking";
+        }
+        leaf odu-connection-direction-capabilities {
+          type identityref {
+            base connection-direction-identity;
+          }
+          description
+            "Bidrectional capable, or Bi and Unidirectional capable";
+        }
+        list non-blocking-list {
+          key "nbl-number";
+          config false;
+          description
+            "List of ports in a non-blocking switch element";
+          leaf nbl-number {
+            type uint16;
+            description
+              "Identifier for this non-blocking-list. Unique within odu-switching-pool";
+          }
+          leaf interconnect-bandwidth-unit {
+            type uint32;
+            config false;
+            description
+              "Switch fabric interconnect bandwidth unit rate in bits per second.
+               Represents granularity of switch fabric";
+          }
+          leaf interconnect-bandwidth {
+            type uint32;
+            config false;
+            description
+              "Total interconnect bandwidth for a non-blocking element expressed as
+               number of inter-connect-bandwidth units";
+          }
+          list port-list {
+            key "circuit-pack-name port-name";
+            leaf circuit-pack-name {
+              type leafref {
+                path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+              }
+              config false;
+            }
+            leaf port-name {
+              type leafref {
+                path "/org-openroadm-device/circuit-packs/ports/port-name";
+              }
+              config false;
+              description
+                "Port name. Unique within device";
+            }
+          }
+          list pluggable-optics-holder-list {
+            key "circuit-pack-name slot-name";
+            leaf circuit-pack-name {
+              type leafref {
+                path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+              }
+              config false;
+              description
+                "Name of parent circuit-pack";
+            }
+            leaf slot-name {
+              type leafref {
+                path "/org-openroadm-device/circuit-packs/cp-slots/slot-name";
+              }
+              config false;
+              description
+                "Name of pluggable-optics-holder";
+            }
+          }
+        }
+      }
+      list mc-capability-profile {
+        key "profile-name";
+        config false;
+        description
+          "Media channel capability profile list";
+        leaf profile-name {
+          type string;
+          description
+            "Media channel profile name";
+        }
+        leaf center-freq-granularity {
+          type org-openroadm-common-optical-channel-types:frequency-GHz;
+          default "50";
+          config false;
+          description
+            "Granularity of allowed center frequencies.  The base frequency for this computation is 193.1 THz (G.694.1)";
+        }
+        leaf min-edge-freq {
+          type org-openroadm-common-optical-channel-types:frequency-THz;
+          config false;
+          description
+            "Minimum edge frequency";
+        }
+        leaf max-edge-freq {
+          type org-openroadm-common-optical-channel-types:frequency-THz;
+          config false;
+          description
+            "Maximum edge frequency";
+        }
+        leaf slot-width-granularity {
+          type org-openroadm-common-optical-channel-types:frequency-GHz;
+          default "50";
+          config false;
+          description
+            "Width of a slot measured in GHz.";
+        }
+        leaf min-slots {
+          type uint32;
+          default "1";
+          config false;
+          description
+            "Minimum number of slots permitted to be joined together to form a media channel.  Must be less than or equal to the max-slots";
+        }
+        leaf max-slots {
+          type uint32;
+          default "1";
+          config false;
+          description
+            "Maximum number of slots permitted to be joined together to form a media channel.  Must be greater than or equal to the min-slots";
+        }
+      }
+    }
+  // }
+
+  grouping common-session-parms {
+    description
+      "Common session parameters to identify a
+       management session.";
+    leaf username {
+      type org-openroadm-user-mgmt:username-type;
+      mandatory true;
+      description
+        "Name of the user for the session.";
+    }
+    leaf session-id {
+      type ietf-nc:session-id-or-zero-type;
+      mandatory true;
+      description
+        "Identifier of the session.
+         A NETCONF session MUST be identified by a non-zero value.
+         A non-NETCONF session MAY be identified by the value zero.";
+    }
+    leaf source-host {
+      type ietf-inet-types:ip-address;
+      description
+        "Address of the remote host for the session.";
+    }
+  }
+
+  grouping changed-by-parms {
+    description
+      "Common parameters to identify the source
+       of a change event, such as a configuration
+       or capability change.";
+    container changed-by {
+      description
+        "Indicates the source of the change.
+         If caused by internal action, then the
+         empty leaf 'server' will be present.
+         If caused by a management session, then
+         the name, remote host address, and session ID
+         of the session that made the change will be reported.";
+      choice server-or-user {
+        leaf server {
+          type empty;
+          description
+            "If present, the change was caused
+             by the server.";
+        }
+        case by-user {
+          uses common-session-parms;
+        }
+      }
+    }
+  }
+
+  rpc led-control {
+    description
+      "This command is used to allow user to find an entity on the NE,
+       The specified entity will have LED blinking.
+       The equipmentLedOn alarm will be raised and cleared for the indication";
+    input {
+      choice equipment-entity {
+        mandatory true;
+        case shelf {
+          leaf shelf-name {
+            type leafref {
+              path "/org-openroadm-device/shelves/shelf-name";
+            }
+            mandatory true;
+            description
+              "shelf-name for the operation";
+          }
+        }
+        case circuit-pack {
+          leaf circuit-pack-name {
+            type leafref {
+              path "/org-openroadm-device/circuit-packs/circuit-pack-name";
+            }
+            mandatory true;
+            description
+              "circuit-pack-name for the operation";
+          }
+        }
+      }
+      leaf enabled {
+        type boolean;
+        mandatory true;
+        description
+          "led-control enabled flag.
+           when enabled=true,  equipmentLedOn alarm will be raised
+           when enabled=false, equipmentLedOn alarm will be cleared";
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  rpc create-tech-info {
+    description
+      "Collects all log data for debugging and place it in a location accessible via ftp/sftp.
+       This model assumes ASYNC operation, i.e. the command will return after the device accepts the command,
+       A create-tech-info-notification will be send out later for the result of the operation.
+       The log-file is cleared at the start of every create-tech-info operation in order to ensure
+       the up-to-date logs are collected. If a vendor does not support concurrent log collection, the second
+       create-tech-info command will be rejected.";
+    input {
+      leaf shelf-id {
+        type leafref {
+          path "/org-openroadm-device/shelves/shelf-name";
+        }
+        description
+          "This optional field is used to specify the shelf for log collection.
+           When this filed is not provided, it is expected to collect logs for the whole node.
+           Vendor should reject the command if the whole node log collection is not supported.";
+      }
+      leaf log-option {
+        type string;
+        description
+          "The log type a vendor can specify. Maybe used in future";
+      }
+    }
+    output {
+      uses create-tech-info-group;
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  rpc get-connection-port-trail {
+    input {
+      leaf connection-name {
+        type string;
+        mandatory true;
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+      list ports {
+        uses org-openroadm-device-types:physical-location;
+        uses port-name {
+          refine "circuit-pack-name" {
+            mandatory true;
+          }
+          refine "port-name" {
+            mandatory true;
+          }
+        }
+      }
+    }
+  }
+  rpc disable-automatic-shutoff {
+    input {
+      choice degree-or-amp {
+        mandatory true;
+        description
+          "The choice describes the option to specify the entity for the disable-automatic-shutoff RPC. It can be degree-number for rdm and amp-number for ila";
+        case degree {
+          leaf degree-number {
+            type leafref {
+              path "/org-openroadm-device/degree/degree-number";
+            }
+            mandatory true;
+            description
+              "The degree-number defined in degree";
+          }
+        }
+        case amp {
+          leaf amp-number {
+            type leafref {
+              path "/org-openroadm-device/line-amplifier/amp-number";
+            }
+            mandatory true;
+            description
+              "The amp-number defined in line-amplifier";
+          }
+        }
+      }
+      leaf support-timer {
+        type uint16 {
+          range "1..600";
+        }
+        default "20";
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  rpc start-scan {
+    input {
+      choice degree-or-amp {
+        mandatory true;
+        description
+          "The choice describes the option to specify the entity for the start-scan RPC. It can be degree-number for rdm and amp-number for ila";
+        case degree {
+          leaf degree-number {
+            type leafref {
+              path "/org-openroadm-device/degree/degree-number";
+            }
+            mandatory true;
+            description
+              "The degree-number defined in degree";
+          }
+        }
+        case amp {
+          leaf amp-number {
+            type leafref {
+              path "/org-openroadm-device/line-amplifier/amp-number";
+            }
+            mandatory true;
+            description
+              "The amp-number defined in line-amplifier";
+          }
+        }
+      }
+      leaf port-direction {
+        type org-openroadm-common-alarm-pm-types:direction;
+      }
+      leaf distance {
+        type uint32;
+      }
+      leaf resolution {
+        type uint32;
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  rpc set-current-datetime {
+    description
+      "Set the info/current-datetime leaf to the specified value.";
+    input {
+      leaf current-datetime {
+        type ietf-yang-types:date-and-time;
+        mandatory true;
+        description
+          "The current system date and time in UTC. Format: YYYY-MM-DDTHH:MM:SS";
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  notification create-tech-info-notification {
+    description
+      "This Notification is sent when the create-tech-info is complete or failed.";
+    uses create-tech-info-group;
+    uses org-openroadm-common-types:rpc-response-status;
+  }
+  notification otdr-scan-result {
+    description
+      "This Notification is sent when the otdr-scan-result is complete or failed.";
+    uses org-openroadm-common-types:rpc-response-status;
+    leaf result-file {
+      type string;
+    }
+  }
+  notification change-notification {
+    description
+      "The Notification that a resource has been added, modified or removed.
+       This notification can be triggered by changes in configuration and operational data.
+       It shall contain the changed field pointed by the xpath.
+       Typically it is not intended for frequently changing volatile data e.g. PM, power levels";
+    leaf change-time {
+      type ietf-yang-types:date-and-time;
+      description
+        "The time the change occurs.";
+    }
+    uses changed-by-parms;
+    leaf datastore {
+      type enumeration {
+        enum running {
+          description
+            "The <running> datastore has changed.";
+        }
+        enum startup {
+          description
+            "The <startup> datastore has changed";
+        }
+      }
+      default "running";
+      description
+        "Indicates which configuration datastore has changed.";
+    }
+    list edit {
+      description
+        "An edit (change) record SHOULD be present for each distinct
+         edit operation that the server has detected on
+         the target datastore.  This list MAY be omitted
+         if the detailed edit operations are not known.
+         The server MAY report entries in this list for
+         changes not made by a NETCONF session.";
+      leaf target {
+        type instance-identifier;
+        description
+          "Top most node associated with the configuration or operational change.
+           A server SHOULD set this object to the node within
+           the datastore that is being altered.  A server MAY
+           set this object to one of the ancestors of the actual
+           node that was changed, or omit this object, if the
+           exact node is not known.";
+      }
+      leaf operation {
+        type ietf-nc:edit-operation-type;
+        description
+          "Type of edit operation performed.
+           A server MUST set this object to the NETCONF edit
+           operation performed on the target datastore.";
+      }
+    }
+  }
+ // uses org-openroadm-device-container-g;
+}
\ No newline at end of file
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-equipment-states-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-equipment-states-types.yang
new file mode 100644
index 000000000..ccfca1972
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-equipment-states-types.yang
@@ -0,0 +1,147 @@
+module org-openroadm-equipment-states-types {
+  namespace "http://org/openroadm/equipment/states/types";
+  prefix org-openroadm-equipment-states-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions for types of states of equipment (slot/subslot).
+
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  typedef admin-states {
+    type enumeration {
+      enum inService {
+        value 1;
+      }
+      enum outOfService {
+        value 2;
+      }
+      enum maintenance {
+        value 3;
+      }
+    }
+  }
+
+  typedef states {
+    type enumeration {
+      enum reserved-for-facility-planned {
+        value 1;
+        description
+          "equipment is planned for use by a service";
+      }
+      enum not-reserved-planned {
+        value 2;
+        description
+          "equipment is planned by not reserved for any purpose";
+      }
+      enum reserved-for-maintenance-planned {
+        value 3;
+        description
+          "equipment is planned for use as a maintenance spare";
+      }
+      enum reserved-for-facility-unvalidated {
+        value 4;
+        description
+          "equipment is reserved for use by a service but not
+           validated against planned equipment";
+      }
+      enum not-reserved-unvalidated {
+        value 5;
+        description
+          "equipment is not reserved for any purpose and
+           not validated against planned equipment";
+      }
+      enum unknown-unvalidated {
+        value 6;
+        description
+          "unknown equipment not validated against planned equipment";
+      }
+      enum reserved-for-maintenance-unvalidated {
+        value 7;
+        description
+          "equipment is to be used for use as a maintenance spare
+           but not validated against planned equipment";
+      }
+      enum reserved-for-facility-available {
+        value 8;
+        description
+          "reserved for use by a service and available";
+      }
+      enum not-reserved-available {
+        value 9;
+        description
+          "not reserved for use by a service and available";
+      }
+      enum reserved-for-maintenance-available {
+        value 10;
+        description
+          "reserved as a maintenance spare and available";
+      }
+      enum reserved-for-reversion-inuse {
+        value 11;
+        description
+          "equipment that is reserved as part of a home path
+           for a service that has been temporarily re-routed";
+      }
+      enum not-reserved-inuse {
+        value 12;
+        description
+          "equipment in use for a service";
+      }
+      enum reserved-for-maintenance-inuse {
+        value 13;
+        description
+          "maintenance spare equipment that is in use as a
+           maintenance spare";
+      }
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-interfaces.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-interfaces.yang
new file mode 100644
index 000000000..618c1e51b
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-interfaces.yang
@@ -0,0 +1,181 @@
+module org-openroadm-interfaces {
+  namespace "http://org/openroadm/interfaces";
+  prefix openROADM-if;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions for device facility interfaces.
+     Reused ietf-interfaces and some interface-type defined in iana-if-type.
+
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.
+
+     Also contains code components extracted from IETF Interfaces.  These code components
+     are copyrighted and licensed as follows:
+
+     Copyright (c) 2016 IETF Trust and the persons identified as the document authors.
+     All rights reserved.
+
+     This document is subject to BCP 78 and the IETF Trust’s Legal Provisions Relating
+     to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of
+     publication of this document. Please review these documents carefully, as they
+     describe your rights and restrictions with respect to this document. Code Components
+     extracted from this document must include Simplified BSD License text as described in
+     Section 4.e of the Trust Legal Provisions and are provided without warranty as
+     described in the Simplified BSD License.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  identity interface-type {
+    description
+      "Base identity from which specific interface types are
+       derived.";
+  }
+
+  identity ethernetCsmacd {
+    base interface-type;
+    description
+      "For all Ethernet-like interfaces, regardless of speed,
+       as per RFC 3635.";
+    reference
+      "RFC 3635 - Definitions of Managed Objects for the
+                  Ethernet-like Interface Types";
+  }
+
+  identity ip {
+    base interface-type;
+    description
+      "IP (for APPN HPR in IP networks).";
+  }
+
+  identity mediaChannelTrailTerminationPoint {
+    base interface-type;
+    description
+      "Media Channel Trail Termination Point";
+  }
+
+  identity networkMediaChannelConnectionTerminationPoint {
+    base interface-type;
+    description
+      "Network Media Channel Connection Termination Point";
+  }
+
+  identity opticalChannel {
+    base interface-type;
+    description
+      "Optical Channel.";
+  }
+
+  identity opticalTransport {
+    base interface-type;
+    description
+      "Optical Transport.";
+  }
+
+  identity otnOdu {
+    base interface-type;
+    description
+      "OTN Optical Data Unit.";
+  }
+
+  identity otnOtu {
+    base interface-type;
+    description
+      "OTN Optical channel Transport Unit.";
+  }
+
+  identity otsi {
+    base interface-type;
+    description
+      "OTSI interface.";
+  }
+
+  identity otsi-group {
+    base interface-type;
+    description
+      "OTSI Group interface.";
+  }
+
+  identity flexo {
+    base interface-type;
+    description
+      "Flexo interface.";
+  }
+
+  identity flexo-group {
+    base interface-type;
+    description
+      "Flexo Group interface.";
+  }
+
+  identity openROADMOpticalMultiplex {
+    base interface-type;
+    description
+      "Optical Transport Multiplex type for openROADM";
+  }
+
+  identity ppp {
+    base interface-type;
+    description
+      "PPP for IP GNE.";
+  }
+
+  identity gcc {
+    base interface-type;
+    description
+      "ITU-T G.709 GCC.";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-otn-common-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-otn-common-types.yang
new file mode 100644
index 000000000..69b9e9d38
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-otn-common-types.yang
@@ -0,0 +1,343 @@
+module org-openroadm-otn-common-types {
+  namespace "http://org/openroadm/otn-common-types";
+  prefix org-openroadm-otn-common-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions for common otn related type definitions.
+
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.
+
+     Also contains code components extracted from IETF Interfaces.  These code components
+     are copyrighted and licensed as follows:
+
+     Copyright (c) 2016 IETF Trust and the persons identified as the document authors.
+     All rights reserved.
+
+     This document is subject to BCP 78 and the IETF Trust’s Legal Provisions Relating
+     to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of
+     publication of this document. Please review these documents carefully, as they
+     describe your rights and restrictions with respect to this document. Code Components
+     extracted from this document must include Simplified BSD License text as described in
+     Section 4.e of the Trust Legal Provisions and are provided without warranty as
+     described in the Simplified BSD License.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+
+  identity otu-rate-identity {
+    description
+      "A unique rate identification of the OTU.";
+  }
+
+  identity OTUCn {
+    base otu-rate-identity;
+    description
+      "Identity for an OTUCn";
+  }
+
+  identity OTU4 {
+    base otu-rate-identity;
+    description
+      "Identity for an OTU4";
+  }
+
+  identity OTU3 {
+    base otu-rate-identity;
+    description
+      "Identity for an OTU3";
+  }
+
+  identity OTU2 {
+    base otu-rate-identity;
+    description
+      "Identity for an OTU2";
+  }
+
+  identity OTU2e {
+    base otu-rate-identity;
+    description
+      "Identity for an OTU2e";
+  }
+
+  identity OTU1 {
+    base otu-rate-identity;
+    description
+      "Identity for an OTU1";
+  }
+
+  identity OTU0 {
+    base otu-rate-identity;
+    description
+      "Identity for an OTU0";
+  }
+
+  identity OTUflex {
+    base otu-rate-identity;
+    description
+      "Identity for an OTUflex";
+  }
+
+  identity odu-rate-identity {
+    description
+      "A unique rate identification of the ODU.";
+  }
+
+  identity ODUCn {
+    base odu-rate-identity;
+    description
+      "Identity for an ODUCn";
+  }
+
+  identity ODU4 {
+    base odu-rate-identity;
+    description
+      "Identity for an ODU4";
+  }
+
+  identity ODU3 {
+    base odu-rate-identity;
+    description
+      "Identity for an ODU3";
+  }
+
+  identity ODU2 {
+    base odu-rate-identity;
+    description
+      "Identity for an ODU2";
+  }
+
+  identity ODU2e {
+    base odu-rate-identity;
+    description
+      "Identity for an ODU2e";
+  }
+
+  identity ODU1 {
+    base odu-rate-identity;
+    description
+      "Identity for an ODU1";
+  }
+
+  identity ODU0 {
+    base odu-rate-identity;
+    description
+      "Identity for an ODU0";
+  }
+
+  identity ODUflex-cbr {
+    base odu-rate-identity;
+    description
+      "ODUFlex for CBR client signals (G.709)";
+  }
+
+  identity ODUflex-cbr-25G {
+    base odu-rate-identity;
+    description
+      "ODUFlex for CBR client signals 25G (G.709 17.13.1)";
+  }
+
+  identity ODUflex-cbr-200G {
+    base odu-rate-identity;
+    description
+      "ODUFlex for CBR client signals 200G (G.709 17.13.2)";
+  }
+
+  identity ODUflex-cbr-400G {
+    base odu-rate-identity;
+    description
+      "ODUFlex for CBR client signals 400G (G.709 17.13.2)";
+  }
+
+  identity ODUflex-imp {
+    base odu-rate-identity;
+    description
+      "ODUFlex for IMP (Idle insertion Mapping Procedure) mapped client signals (G.709)";
+  }
+
+  identity ODUflex-flexe {
+    base odu-rate-identity;
+    description
+      "ODUflex for FlexE-aware client signals (G.709)";
+  }
+
+  identity ODUflex-gfp {
+    base odu-rate-identity;
+    description
+      "ODUflex for GFP-F mapped client signals (G.709)";
+  }
+
+  identity odtu-type-identity {
+    description
+      "A unique identification for the MSI odtu type.";
+  }
+
+  identity ODTUCn.ts {
+    base odtu-type-identity;
+    description
+      "ODTUCn.ts - OPUCn MSI type (G.709 clause 20.2)";
+  }
+
+  identity ODTU4.ts-Allocated {
+    base odtu-type-identity;
+    description
+      "OPU4 MSI - ODTU4.ts, OPU4 MSI TS is occupied/allocated.
+       Applies to all ODTU4.x mappings";
+  }
+
+  identity ODTU01 {
+    base odtu-type-identity;
+    description
+      "ODTU01 MSI type";
+  }
+
+  identity ODTU12 {
+    base odtu-type-identity;
+    description
+      "ODTU12 MSI type";
+  }
+
+  identity ODTU13 {
+    base odtu-type-identity;
+    description
+      "ODTU13 MSI type";
+  }
+
+  identity ODTU23 {
+    base odtu-type-identity;
+    description
+      "ODTU23 MSI type";
+  }
+
+  identity ODTU2.ts {
+    base odtu-type-identity;
+    description
+      "ODTU2.ts MSI type";
+  }
+
+  identity ODTU3.ts {
+    base odtu-type-identity;
+    description
+      "ODTU3.ts MSI type";
+  }
+
+  identity ODTU4.ts {
+    base odtu-type-identity;
+    description
+      "ODTU4.ts MSI type";
+  }
+
+  identity unallocated {
+    base odtu-type-identity;
+    description
+      "Unallocated MSI type";
+  }
+
+  identity odu-function-identity {
+    description
+      "A unique identification of the ODUk interface function.";
+  }
+
+  identity ODU-TTP {
+    base odu-function-identity;
+    description
+      "ODU TTP facility facing trail termination";
+  }
+
+  identity ODU-CTP {
+    base odu-function-identity;
+    description
+      "ODU CTP connection termination";
+  }
+
+  identity ODU-TTP-CTP {
+    base odu-function-identity;
+    description
+      "ODU CTP mapper level connection termination with trail termination and client adaptation";
+  }
+
+  typedef payload-type-def {
+    type string {
+      length "2";
+      pattern '[0-9a-fA-F]*';
+    }
+    description
+      "Common type definition for odu payload-type";
+  }
+
+  typedef opucn-trib-slot-def {
+    type string;
+    description
+      "OPUCn trib slot in the form of 'A.B' with
+       A = 1..n
+       B = 1..20";
+  }
+
+  typedef tcm-direction-enum {
+    type enumeration {
+      enum up-tcm {
+        description
+          "TCM termination direction faces the switch fabric.";
+      }
+      enum down-tcm {
+        description
+          "TCM termination direction faces the facility";
+      }
+    }
+    description
+      "Enumeration type for TCM direction";
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-physical-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-physical-types.yang
new file mode 100644
index 000000000..236093707
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-physical-types.yang
@@ -0,0 +1,153 @@
+module org-openroadm-physical-types {
+  namespace "http://org/openroadm/physical/types";
+  prefix org-openroadm-physical-types;
+
+  import org-openroadm-common-state-types {
+    prefix org-openroadm-common-state-types;
+    revision-date 2019-11-29;
+  }
+  import ietf-yang-types {
+    prefix yang;
+    revision-date 2013-07-15;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of physical types.
+
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  grouping node-info {
+    description
+      "Physical inventory data used by the node";
+    leaf vendor {
+      type string;
+      config false;
+      mandatory true;
+      description
+        "Vendor of the equipment";
+    }
+    leaf model {
+      type string;
+      config false;
+      mandatory true;
+      description
+        "Physical resource model information.";
+    }
+    leaf serial-id {
+      type string;
+      config false;
+      mandatory true;
+      description
+        "Product Code for this physical resource";
+    }
+  }
+
+  grouping common-info {
+    description
+      "Physical inventory data used by all other entities";
+    uses node-info;
+    leaf type {
+      type string;
+      config false;
+      description
+        "The specific type of this physical resource - ie the type of
+         shelf, type of circuit-pack, etc.";
+    }
+    leaf product-code {
+      type string;
+      config false;
+      description
+        "Product Code for this physical resource";
+    }
+    leaf manufacture-date {
+      type yang:date-and-time;
+      config false;
+      description
+        "Manufacture date of physical resource";
+    }
+    leaf clei {
+      type string;
+      config false;
+      description
+        "CLEI for this physical resource";
+    }
+    leaf hardware-version {
+      type string;
+      config false;
+      description
+        "The version of the hardware.";
+    }
+    leaf operational-state {
+      type org-openroadm-common-state-types:state;
+      config false;
+      mandatory true;
+      description
+        "Operational state of the physical resource";
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-pm-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-pm-types.yang
new file mode 100644
index 000000000..78dd8934e
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-pm-types.yang
@@ -0,0 +1,680 @@
+module org-openroadm-pm-types {
+  namespace "http://org/openroadm/pm-types";
+  prefix org-openroadm-pm-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of performance management types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  typedef pm-granularity {
+    type enumeration {
+      enum notApplicable {
+        value 1;
+        description
+          "This is for total statistic counters on devices that support
+              them.";
+      }
+      enum 15min {
+        value 2;
+      }
+      enum 24Hour {
+        value 3;
+      }
+    }
+    description
+      "Granularity of PM bin";
+  }
+
+  typedef pm-data-type {
+    type union {
+      type uint64;
+      type int64;
+      type decimal64 {
+        fraction-digits 2;
+      }
+      type decimal64 {
+        fraction-digits 17;
+      }
+    }
+  }
+
+  typedef validity {
+    type enumeration {
+      enum complete {
+        value 1;
+      }
+      enum partial {
+        value 2;
+      }
+      enum suspect {
+        value 3;
+      }
+    }
+    description
+      "Validity of data";
+  }
+
+  typedef pm-names-enum {
+    type enumeration {
+      enum vendorExtension {
+        value 1;
+        description
+          "vendor extension";
+      }
+      enum bitErrorRate {
+        value 2;
+        description
+          "Bit error rate (BER)";
+      }
+      enum opticalPowerOutput {
+        value 3;
+        description
+          "Optical Power Output (OPOUT-OTS, OPOUT-OMS, OPT-OCH). Total optical power includes Variable Optical Attenuator (VOA) attenuation";
+      }
+      enum opticalReturnLoss {
+        value 4;
+        description
+          "Optical Return Loss (ORL-OTS) - at MW port(s) B";
+      }
+      enum opticalPowerInput {
+        value 5;
+        description
+          "Optical Power Input (OPIN-OTS, OPIN-OMS, OPR-OCH). Total optical power";
+      }
+      enum codeViolations {
+        value 8;
+        description
+          "Code Violations (CV)";
+      }
+      enum erroredSeconds {
+        value 9;
+        description
+          "Errored Seconds (ES)";
+      }
+      enum severelyErroredSeconds {
+        value 10;
+        description
+          "Severely Errored Seconds (SES)";
+      }
+      enum unavailableSeconds {
+        value 11;
+        description
+          "Unavailable Seconds (UAS)";
+      }
+      enum inFrames {
+        value 12;
+        description
+          "In frames (INFRAMES-E)";
+      }
+      enum inFramesErrored {
+        value 13;
+        description
+          "In frames errored (INFRAMESERR-E)";
+      }
+      enum outFrames {
+        value 14;
+        description
+          "Out frames (OUTFRAMES-E)";
+      }
+      enum erroredSecondsEthernet {
+        value 15;
+        description
+          "Errored Seconds Ethernet (ES-E)";
+      }
+      enum severelyErroredSecondsEthernet {
+        value 16;
+        description
+          "Severely Errored Seconds, Ethernet (SES-E)";
+      }
+      enum unavailableSecondsEthernet {
+        value 17;
+        description
+          "Unavailable Seconds, Ethernet (UAS-E)";
+      }
+      enum erroredBlockCount {
+        value 18;
+        description
+          "Errored block count";
+      }
+      enum delay {
+        value 19;
+        description
+          "Number of frames between a DMValue toggle event and the received DMp signal value toggle event";
+      }
+      enum defectSeconds {
+        value 20;
+        description
+          "Defect Seconds (DS)";
+      }
+      enum backwardIncomingAlignmentError {
+        value 21;
+        description
+          "Backward Incoming Alignment Error (BIAE)";
+      }
+      enum incomingAlignmentError {
+        value 22;
+        description
+          "Incoming Alignment Error (IAE)";
+      }
+      enum opticalPowerOutputMin {
+        value 23;
+        description
+          "Minimum Optical Power Output (OPOUT-OTS). Total optical power includes Variable Optical Attenuator (VOA) attenuation";
+      }
+      enum opticalPowerOutputMax {
+        value 24;
+        description
+          "Maximum Optical Power Output (OPOUT-OTS). Total optical power includes Variable Optical Attenuator (VOA) attenuation";
+      }
+      enum opticalPowerOutputAvg {
+        value 25;
+        description
+          "Average Optical Power Output (OPOUT-OTS). Total optical power includes Variable Optical Attenuator (VOA) attenuation";
+      }
+      enum opticalPowerInputMin {
+        value 26;
+        description
+          "Minimum Optical Power Input (OPIN-OTS). Total optical power";
+      }
+      enum opticalPowerInputMax {
+        value 27;
+        description
+          "Maximum Optical Power Input (OPIN-OTS). Total optical power";
+      }
+      enum opticalPowerInputAvg {
+        value 28;
+        description
+          "Average Optical Power Input (OPIN-OTS). Total optical power";
+      }
+      enum opticalPowerOutputOSC {
+        value 29;
+        description
+          "OSC Optical Power Output (OPT-OSC). OSC Transmit power on MW port";
+      }
+      enum opticalPowerOutputOSCMin {
+        value 30;
+        description
+          "Minimum OSC Optical Power Output (OPT-OSC). OSC Transmit power on MW port";
+      }
+      enum opticalPowerOutputOSCMax {
+        value 31;
+        description
+          "Maximum OSC Optical Power Output (OPT-OSC). OSC Transmit power on MW port";
+      }
+      enum opticalPowerOutputOSCAvg {
+        value 32;
+        description
+          "Average OSC Optical Power Output (OPT-OSC). OSC Transmit power on MW port";
+      }
+      enum opticalPowerInputOSC {
+        value 33;
+        description
+          "OSC Optical Power Input (OPR-OSC). OSC Receive power on MW port";
+      }
+      enum opticalPowerInputOSCMin {
+        value 34;
+        description
+          "Minimum OSC Optical Power Input (OPR-OSC). OSC Receive power on MW port";
+      }
+      enum opticalPowerInputOSCMax {
+        value 35;
+        description
+          "Maximum OSC Optical Power Input (OPR-OSC). OSC Receive power on MW port";
+      }
+      enum opticalPowerInputOSCAvg {
+        value 36;
+        description
+          "Average OSC Optical Power Input (OPR-OSC). OSC Receive power on MW port";
+      }
+      enum preFECCorrectedErrors {
+        value 37;
+        description
+          "pFEC corrected Errors";
+      }
+      enum totalOpticalPowerInput {
+        value 38;
+        description
+          "Total Optical Power Input.";
+      }
+      enum totalOpticalPowerInputMin {
+        value 39;
+        description
+          "Minimum Total Optical Power Input.";
+      }
+      enum totalOpticalPowerInputMax {
+        value 40;
+        description
+          "Maximum Total Optical Power Input.";
+      }
+      enum totalOpticalPowerInputAvg {
+        value 41;
+        description
+          "Average Total Optical Power Input.";
+      }
+      enum FECCorrectableBlocks {
+        value 42;
+        description
+          "FEC Correctable Blocks.";
+      }
+      enum FECUncorrectableBlocks {
+        value 43;
+        description
+          "FEC Uncorrectable Blocks.";
+      }
+      enum BIPErrorCounter {
+        value 56;
+        description
+          "BIP Error Counter";
+      }
+      enum protectionSwitchingCount {
+        value 57;
+        description
+          "Protection Switching Count (PSC)";
+      }
+      enum protectionSwitchingDuration {
+        value 58;
+        description
+          "Protection Switching Duration in seconds (PSD)";
+      }
+      enum erroredBlockCountTCM1-up {
+        value 59;
+        description
+          "errored Blocks Count on TCM1 up direction.";
+      }
+      enum erroredBlockCountTCM2-up {
+        value 60;
+        description
+          "errored Blocks Count on TCM2 up direction.";
+      }
+      enum erroredBlockCountTCM3-up {
+        value 61;
+        description
+          "errored Blocks Count on TCM3 up direction.";
+      }
+      enum erroredBlockCountTCM4-up {
+        value 62;
+        description
+          "errored Blocks Count on TCM4 up direction.";
+      }
+      enum erroredBlockCountTCM5-up {
+        value 63;
+        description
+          "errored Blocks Count on TCM5 up direction.";
+      }
+      enum erroredBlockCountTCM6-up {
+        value 64;
+        description
+          "errored Blocks Count on TCM6 up direction.";
+      }
+      enum delayTCM1-up {
+        value 65;
+        description
+          "Delay on TCM1 up direction.";
+      }
+      enum delayTCM2-up {
+        value 66;
+        description
+          "Delay on TCM2 up direction.";
+      }
+      enum delayTCM3-up {
+        value 67;
+        description
+          "Delay on TCM3 up direction.";
+      }
+      enum delayTCM4-up {
+        value 68;
+        description
+          "Delay on TCM4 up direction.";
+      }
+      enum delayTCM5-up {
+        value 69;
+        description
+          "Delay on TCM5 up direction.";
+      }
+      enum delayTCM6-up {
+        value 70;
+        description
+          "Delay on TCM6 up direction.";
+      }
+      enum erroredBlockCountTCM1-down {
+        value 71;
+        description
+          "errored Blocks Count on TCM1 down direction.";
+      }
+      enum erroredBlockCountTCM2-down {
+        value 72;
+        description
+          "errored Blocks Count on TCM2 down direction.";
+      }
+      enum erroredBlockCountTCM3-down {
+        value 73;
+        description
+          "errored Blocks Count on TCM3 down direction.";
+      }
+      enum erroredBlockCountTCM4-down {
+        value 74;
+        description
+          "errored Blocks Count on TCM4 down direction.";
+      }
+      enum erroredBlockCountTCM5-down {
+        value 75;
+        description
+          "errored Blocks Count on TCM5 down direction.";
+      }
+      enum erroredBlockCountTCM6-down {
+        value 76;
+        description
+          "errored Blocks Count on TCM6 down direction.";
+      }
+      enum delayTCM1-down {
+        value 77;
+        description
+          "Delay on TCM1 down direction.";
+      }
+      enum delayTCM2-down {
+        value 78;
+        description
+          "Delay on TCM2 down direction.";
+      }
+      enum delayTCM3-down {
+        value 79;
+        description
+          "Delay on TCM3 down direction.";
+      }
+      enum delayTCM4-down {
+        value 80;
+        description
+          "Delay on TCM4 down direction.";
+      }
+      enum delayTCM5-down {
+        value 81;
+        description
+          "Delay on TCM5 down direction.";
+      }
+      enum delayTCM6-down {
+        value 82;
+        description
+          "Delay on TCM6 down direction.";
+      }
+      enum partialRateDiscard {
+        value 83;
+        description
+          "Discarded packet as a result of policing or rate limiting for subrate ethernet.";
+      }
+      enum erroredSecondsTCM1-up {
+        value 84;
+        description
+          "errored Seconds Count on TCM1 up direction.";
+      }
+      enum erroredSecondsTCM2-up {
+        value 85;
+        description
+          "errored Seconds Count on TCM2 up direction.";
+      }
+      enum erroredSecondsTCM3-up {
+        value 86;
+        description
+          "errored Seconds Count on TCM3 up direction.";
+      }
+      enum erroredSecondsTCM4-up {
+        value 87;
+        description
+          "errored Seconds Count on TCM4 up direction.";
+      }
+      enum erroredSecondsTCM5-up {
+        value 88;
+        description
+          "errored Seconds Count on TCM5 up direction.";
+      }
+      enum erroredSecondsTCM6-up {
+        value 89;
+        description
+          "errored Seconds Count on TCM6 up direction.";
+      }
+      enum severelyErroredSecondsTCM1-up {
+        value 90;
+        description
+          "severely Errored Seconds Count on TCM1 up direction.";
+      }
+      enum severelyErroredSecondsTCM2-up {
+        value 91;
+        description
+          "severely Errored Seconds Count on TCM2 up direction.";
+      }
+      enum severelyErroredSecondsTCM3-up {
+        value 92;
+        description
+          "severely Errored Seconds Count on TCM3 up direction.";
+      }
+      enum severelyErroredSecondsTCM4-up {
+        value 93;
+        description
+          "severely Errored Seconds Count on TCM4 up direction.";
+      }
+      enum severelyErroredSecondsTCM5-up {
+        value 94;
+        description
+          "severely Errored Seconds Count on TCM5 up direction.";
+      }
+      enum severelyErroredSecondsTCM6-up {
+        value 95;
+        description
+          "severely Errored Seconds Count on TCM6 up direction.";
+      }
+      enum unavailableSecondsTCM1-up {
+        value 96;
+        description
+          "unavailable Seconds Count on TCM1 up direction.";
+      }
+      enum unavailableSecondsTCM2-up {
+        value 97;
+        description
+          "unavailable Seconds Count on TCM2 up direction.";
+      }
+      enum unavailableSecondsTCM3-up {
+        value 98;
+        description
+          "unavailable Seconds Count on TCM3 up direction.";
+      }
+      enum unavailableSecondsTCM4-up {
+        value 99;
+        description
+          "unavailable Seconds Count on TCM4 up direction.";
+      }
+      enum unavailableSecondsTCM5-up {
+        value 100;
+        description
+          "unavailable Seconds Count on TCM5 up direction.";
+      }
+      enum unavailableSecondsTCM6-up {
+        value 101;
+        description
+          "unavailable Seconds Count on TCM6 up direction.";
+      }
+      enum erroredSecondsTCM1-down {
+        value 102;
+        description
+          "errored Seconds Count on TCM1 down direction.";
+      }
+      enum erroredSecondsTCM2-down {
+        value 103;
+        description
+          "errored Seconds Count on TCM2 down direction.";
+      }
+      enum erroredSecondsTCM3-down {
+        value 104;
+        description
+          "errored Seconds Count on TCM3 down direction.";
+      }
+      enum erroredSecondsTCM4-down {
+        value 105;
+        description
+          "errored Seconds Count on TCM4 down direction.";
+      }
+      enum erroredSecondsTCM5-down {
+        value 106;
+        description
+          "errored Seconds Count on TCM5 down direction.";
+      }
+      enum erroredSecondsTCM6-down {
+        value 107;
+        description
+          "errored Seconds Count on TCM6 down direction.";
+      }
+      enum severelyErroredSecondsTCM1-down {
+        value 108;
+        description
+          "severely Errored Seconds Count on TCM1 down direction.";
+      }
+      enum severelyErroredSecondsTCM2-down {
+        value 109;
+        description
+          "severely Errored Seconds Count on TCM2 down direction.";
+      }
+      enum severelyErroredSecondsTCM3-down {
+        value 110;
+        description
+          "severely Errored Seconds Count on TCM3 down direction.";
+      }
+      enum severelyErroredSecondsTCM4-down {
+        value 111;
+        description
+          "severely Errored Seconds Count on TCM4 down direction.";
+      }
+      enum severelyErroredSecondsTCM5-down {
+        value 112;
+        description
+          "severely Errored Seconds Count on TCM5 down direction.";
+      }
+      enum severelyErroredSecondsTCM6-down {
+        value 113;
+        description
+          "severely Errored Seconds Count on TCM6 down direction.";
+      }
+      enum unavailableSecondsTCM1-down {
+        value 114;
+        description
+          "unavailable Seconds Count on TCM1 down direction.";
+      }
+      enum unavailableSecondsTCM2-down {
+        value 115;
+        description
+          "unavailable Seconds Count on TCM2 down direction.";
+      }
+      enum unavailableSecondsTCM3-down {
+        value 116;
+        description
+          "unavailable Seconds Count on TCM3 down direction.";
+      }
+      enum unavailableSecondsTCM4-down {
+        value 117;
+        description
+          "unavailable Seconds Count on TCM4 down direction.";
+      }
+      enum unavailableSecondsTCM5-down {
+        value 118;
+        description
+          "unavailable Seconds Count on TCM5 down direction.";
+      }
+      enum unavailableSecondsTCM6-down {
+        value 119;
+        description
+          "unavailable Seconds Count on TCM6 down direction.";
+      }
+    }
+  }
+
+  grouping pm-measurement {
+    description
+      "Set of parameters related to a PM Measurement";
+    leaf pmParameterValue {
+      type pm-data-type;
+      config false;
+      mandatory true;
+    }
+    leaf pmParameterUnit {
+      type string;
+      mandatory false;
+      description
+        "Unit PM parameter has been measured - frames, packets, u, etc";
+    }
+    leaf validity {
+      type validity;
+      mandatory false;
+    }
+  }
+
+  grouping pm-names {
+    description
+      "Name of PM parameter. Consists of a set list of parameters,
+       plus an extension field to support addition parameters.";
+    leaf type {
+      type pm-names-enum;
+      mandatory true;
+    }
+    leaf extension {
+      type string;
+      description
+        "name of parameter, when enum value set to vendorExtension because
+         name not found in pm-names-enum";
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-pm.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-pm.yang
new file mode 100644
index 000000000..2cebbb477
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-pm.yang
@@ -0,0 +1,350 @@
+module org-openroadm-pm {
+  namespace "http://org/openroadm/pm";
+  prefix org-openroadm-pm;
+
+  import ietf-yang-types {
+    prefix yang;
+    revision-date 2013-07-15;
+  }
+  import org-openroadm-common-types {
+    prefix org-openroadm-common-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-alarm-pm-types {
+    prefix org-openroadm-common-alarm-pm-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-resource {
+    prefix org-openroadm-resource;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-resource-types {
+    prefix org-openroadm-resource-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-pm-types {
+    prefix org-openroadm-pm-types;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of performance management.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-05-30 {
+    description
+      "Version 3.1.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  feature historical-pm-retrieval {
+    description
+      "The device supports the ability to directly retrieve the historical
+       PM data from the YANG model.";
+  }
+
+  grouping current-pm-group {
+    description
+      "PM Data with current values - both realtime (granularity=notApplicable)
+       and binned (granularity=15 minute, 24h))";
+    leaf pm-resource-instance {
+      type instance-identifier;
+      config false;
+      mandatory true;
+      description
+        "Retrieves all PM associate with the resource instance";
+    }
+    leaf pm-resource-type {
+      type org-openroadm-resource-types:resource-type-enum;
+      config false;
+      mandatory true;
+      description
+        "The supported pm-resource-type associated with the given resource instance.";
+    }
+    leaf pm-resource-type-extension {
+      type string;
+      config false;
+      description
+        "The resource type extension when the type is not defined in the resource-type-enum.";
+    }
+    leaf start-time {
+      type yang:date-and-time;
+      config false;
+      mandatory true;
+      description
+        "Represents the start time of the bin (15m, 24h granularity) or the start of data collection (notApplicable/untimed granularity).";
+    }
+    leaf retrieval-time {
+      type yang:date-and-time;
+      config false;
+      mandatory true;
+      description
+        "Represents the time when the data is being read, not the bin start or end time.";
+    }
+    list current-pm {
+      key "type extension location direction";
+      config false;
+      uses current-pm-val-group;
+    }
+  }
+
+  grouping current-pm-val-group {
+    uses org-openroadm-pm-types:pm-names;
+    leaf location {
+      type org-openroadm-common-alarm-pm-types:location;
+    }
+    leaf direction {
+      type org-openroadm-common-alarm-pm-types:direction;
+    }
+    list measurement {
+      key "granularity";
+      leaf granularity {
+        type org-openroadm-pm-types:pm-granularity;
+      }
+      uses org-openroadm-pm-types:pm-measurement;
+    }
+  }
+
+  grouping historical-pm-group {
+    description
+      "PM Data with historical values - binned (granularity=15 minute, 24h))";
+    leaf pm-resource-instance {
+      type instance-identifier;
+      config false;
+      mandatory true;
+      description
+        "Retrieves all PM associate with the resource instance";
+    }
+    leaf pm-resource-type {
+      type org-openroadm-resource-types:resource-type-enum;
+      config false;
+      mandatory true;
+    }
+    leaf pm-resource-type-extension {
+      type string;
+      config false;
+      description
+        "The resource type extension when the type is not defined in the resource-type-enum.";
+    }
+    list historical-pm {
+      key "type extension location direction";
+      uses historical-pm-val-group;
+    }
+  }
+
+  grouping historical-pm-val-group {
+    description
+      "PM Data with historical values";
+    uses org-openroadm-pm-types:pm-names;
+    leaf location {
+      type org-openroadm-common-alarm-pm-types:location;
+    }
+    leaf direction {
+      type org-openroadm-common-alarm-pm-types:direction;
+    }
+    list measurement {
+      key "granularity bin-number";
+      leaf granularity {
+        type org-openroadm-pm-types:pm-granularity;
+        mandatory true;
+      }
+      leaf bin-number {
+        type uint16 {
+          range "1..max";
+        }
+        config false;
+        mandatory true;
+      }
+      uses org-openroadm-pm-types:pm-measurement;
+      leaf completion-time {
+        type yang:date-and-time;
+        config false;
+        mandatory true;
+        description
+          "The time at the end of the period; For example if bin starts at
+           01:15:00 and ends at 01:29:59, the completion-time is 01:29:59";
+      }
+    }
+  }
+
+  grouping collect-history-pm-group {
+    leaf pm-filename {
+      type string {
+        length "10..255";
+      }
+      mandatory true;
+      description
+        "The file name to write the historical PM data.
+         The controller should be able to use this name to retrieve the file via ftp/sftp.
+         The file name should be unique for each RPC request since a new RPC request
+         could be initiated while the file transfer of the previous file is still in progress.
+
+         The file content should be written in xml format based on the historical-pm-list
+         yang definition and the file should be gzip compressed.";
+    }
+    uses org-openroadm-common-types:rpc-response-status;
+  }
+
+  rpc clear-pm {
+    description
+      "Command to initialize PM data";
+    input {
+      uses org-openroadm-resource:resource;
+      leaf pm-type {
+        type enumeration {
+          enum current {
+            value 1;
+          }
+          enum all {
+            value 2;
+          }
+        }
+        default "current";
+      }
+      leaf granularity {
+        type org-openroadm-pm-types:pm-granularity;
+        default "15min";
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  rpc collect-historical-pm-file {
+    description
+      "Command to query historical PM data.
+       The device should be able to process an rpc request for 15min data
+       and a separate request for 24hour data in parallel.";
+    input {
+      leaf from-bin-number {
+        type uint16 {
+          range "1..max";
+        }
+        default "1";
+        description
+          "The start bin-number of the range";
+      }
+      leaf to-bin-number {
+        type uint16 {
+          range "1..max";
+        }
+        default "1";
+        description
+          "The end bin-number of the range";
+      }
+      leaf granularity {
+        type org-openroadm-pm-types:pm-granularity;
+        default "15min";
+        description
+          "The granularity of the retrieve, default to 15 minutes PM";
+      }
+    }
+    output {
+      uses collect-history-pm-group;
+    }
+  }
+  notification historical-pm-collect-result {
+    description
+      "This Notification is sent when the pm collection is successful or failed.";
+    uses collect-history-pm-group;
+  }
+  container current-pm-list {
+    config false;
+    description
+      "List of current PMs.";
+    list current-pm-entry {
+      key "pm-resource-type pm-resource-type-extension pm-resource-instance";
+      description
+        "List of current PM entries";
+      uses current-pm-group;
+    }
+  }
+  container historical-pm-list {
+    if-feature "historical-pm-retrieval";
+    config false;
+    description
+      "List of historical PM";
+    list historical-pm-entry {
+      key "pm-resource-type pm-resource-type-extension pm-resource-instance";
+      description
+        "List of historical PM entries";
+      uses historical-pm-group;
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-port-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-port-types.yang
new file mode 100644
index 000000000..2fed53821
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-port-types.yang
@@ -0,0 +1,420 @@
+module org-openroadm-port-types {
+  namespace "http://org/openroadm/port/types";
+  prefix org-openroadm-port-types;
+
+  import org-openroadm-common-link-types {
+    prefix org-openroadm-common-link-types;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions for port types.
+
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  identity supported-if-capability {
+    description
+      "Base identity from which specific supported interfaces are derived";
+  }
+
+  identity if-100GE {
+    base supported-if-capability;
+  }
+
+  identity if-OMS {
+    base supported-if-capability;
+  }
+
+  identity if-OTS {
+    base supported-if-capability;
+  }
+
+  identity if-OTS-OMS-MC-NMC {
+    base supported-if-capability;
+  }
+
+  identity if-NMC {
+    base supported-if-capability;
+  }
+
+  identity if-OCH {
+    base supported-if-capability;
+  }
+
+  identity if-1GE {
+    base supported-if-capability;
+  }
+
+  identity if-10GE {
+    base supported-if-capability;
+  }
+
+  identity if-40GE {
+    base supported-if-capability;
+  }
+
+  identity if-OCH-OTU1-ODU1 {
+    base supported-if-capability;
+  }
+
+  identity if-OCH-OTU2-ODU2 {
+    base supported-if-capability;
+  }
+
+  identity if-OCH-OTU2E-ODU2E {
+    base supported-if-capability;
+  }
+
+  identity if-OCH-OTU3-ODU3 {
+    base supported-if-capability;
+  }
+
+  identity if-OCH-OTU4-ODU4 {
+    base supported-if-capability;
+  }
+
+  identity if-OTUCn-ODUCn {
+    base supported-if-capability;
+  }
+
+  identity if-otsi-flexo-flexogroup {
+    base supported-if-capability;
+  }
+
+  identity if-otsi-otsigroup {
+    base supported-if-capability;
+  }
+
+  identity if-n-OTU4-ODU4 {
+    base supported-if-capability;
+  }
+
+  identity if-otsi-otucn-oducn {
+    base supported-if-capability;
+    status deprecated;
+  }
+
+  identity if-OTU4-ODU4 {
+    base supported-if-capability;
+  }
+
+  identity if-OTU1-ODU1 {
+    base supported-if-capability;
+  }
+
+  identity if-OTU2-ODU2 {
+    base supported-if-capability;
+  }
+
+  identity if-OTU2e-ODU2e {
+    base supported-if-capability;
+  }
+
+  identity if-OTU3-ODU3 {
+    base supported-if-capability;
+  }
+
+  identity if-1GE-ODU0 {
+    base supported-if-capability;
+  }
+
+  identity if-10GE-ODU2 {
+    base supported-if-capability;
+  }
+
+  identity if-10GE-ODU2e {
+    base supported-if-capability;
+  }
+
+  identity if-10GE-oduflexgfp {
+    base supported-if-capability;
+  }
+
+  identity if-25GE-oduflexcbr {
+    base supported-if-capability;
+  }
+
+  identity if-40GE-ODU3 {
+    base supported-if-capability;
+  }
+
+  identity if-40GE-oduflexgfp {
+    base supported-if-capability;
+  }
+
+  identity if-100GE-ODU4 {
+    base supported-if-capability;
+  }
+
+  identity if-100GE-oduflexgfp {
+    base supported-if-capability;
+  }
+
+  identity if-200GE-oduflexcbr {
+    base supported-if-capability;
+  }
+
+  identity if-400GE-odufleximp {
+    base supported-if-capability;
+  }
+
+  identity if-400GE-oduflexcbr {
+    base supported-if-capability;
+  }
+
+  identity supported-xpdr-capability {
+    description
+      "Base identity from which specific supported xponder are derived";
+  }
+
+  identity Transponder {
+    base supported-xpdr-capability;
+  }
+
+  identity Regen {
+    base supported-xpdr-capability;
+  }
+
+  identity pluggable-identifiers-identity {
+    description
+      "Pluggable identifiers type";
+  }
+
+  identity SFP {
+    base pluggable-identifiers-identity;
+  }
+
+  identity SFP-plus {
+    base pluggable-identifiers-identity;
+  }
+
+  identity SFP28 {
+    base pluggable-identifiers-identity;
+  }
+
+  identity SFP-DD {
+    base pluggable-identifiers-identity;
+  }
+
+  identity DWDM-SFP {
+    base pluggable-identifiers-identity;
+  }
+
+  identity DWDM-SFP-plus {
+    base pluggable-identifiers-identity;
+  }
+
+  identity QSFP {
+    base pluggable-identifiers-identity;
+  }
+
+  identity QSFP-plus {
+    base pluggable-identifiers-identity;
+  }
+
+  identity QSFP28 {
+    base pluggable-identifiers-identity;
+  }
+
+  identity QSFP28-DD {
+    base pluggable-identifiers-identity;
+  }
+
+  identity QSFP-DD {
+    base pluggable-identifiers-identity;
+  }
+
+  identity micro-QSFP {
+    base pluggable-identifiers-identity;
+  }
+
+  identity OSFP {
+    base pluggable-identifiers-identity;
+  }
+
+  identity CFP {
+    base pluggable-identifiers-identity;
+  }
+
+  identity CFP2 {
+    base pluggable-identifiers-identity;
+  }
+
+  identity CFP4 {
+    base pluggable-identifiers-identity;
+  }
+
+  identity CFP8 {
+    base pluggable-identifiers-identity;
+  }
+
+  identity CFP2-ACO {
+    base pluggable-identifiers-identity;
+  }
+
+  identity CFP2-DCO {
+    base pluggable-identifiers-identity;
+  }
+
+  identity XFP {
+    base pluggable-identifiers-identity;
+  }
+
+  identity SFP56 {
+    base pluggable-identifiers-identity;
+  }
+
+  identity QSFP56 {
+    base pluggable-identifiers-identity;
+  }
+
+  identity QSFP56-DD {
+    base pluggable-identifiers-identity;
+  }
+
+  identity SFP-other {
+    base pluggable-identifiers-identity;
+  }
+
+  identity SFP-unspecified {
+    base pluggable-identifiers-identity;
+  }
+
+  typedef port-wavelength-types {
+    type enumeration {
+      enum wavelength {
+        value 1;
+        description
+          "Port on a transponder or ROADM SRG add drop";
+      }
+      enum multi-wavelength {
+        value 2;
+        description
+          "External port connecting to other roadm.";
+      }
+    }
+    description
+      "Port types.";
+  }
+
+  typedef port-module-types {
+    type enumeration {
+      enum 100GBASE-LR4 {
+        value 1;
+      }
+      enum CWDM-4 {
+        value 2;
+      }
+    }
+    description
+      "Pluggable modue types.";
+  }
+
+  grouping common-port {
+    leaf port-power-capability-min-rx {
+      type org-openroadm-common-link-types:power-dBm;
+      config false;
+      description
+        "Based on port capabilities, the minimum power in the system spec for this port to
+         provide optimum function in rx direction";
+    }
+    leaf port-power-capability-min-tx {
+      type org-openroadm-common-link-types:power-dBm;
+      config false;
+      description
+        "Based on port capabilities, the minimum power in the system spec for this port to
+         provide optimum function in tx direction.";
+    }
+    leaf port-power-capability-max-rx {
+      type org-openroadm-common-link-types:power-dBm;
+      config false;
+      description
+        "Based on port capabilities, the maximum power in the system spec for this port to
+         provide optimum function in rx direction.";
+    }
+    leaf port-power-capability-max-tx {
+      type org-openroadm-common-link-types:power-dBm;
+      config false;
+      description
+        "Based on port capabilities, the maximum power in the system spec for this port to
+         provide optimum function in tx direction.";
+    }
+  }
+
+  grouping roadm-port {
+    uses common-port;
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-probable-cause.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-probable-cause.yang
new file mode 100644
index 000000000..4b752c8e5
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-probable-cause.yang
@@ -0,0 +1,843 @@
+module org-openroadm-probable-cause {
+  namespace "http://org/openroadm/probableCause";
+  prefix org-openroadm-probable-cause;
+
+  import org-openroadm-common-alarm-pm-types {
+    prefix org-openroadm-common-alarm-pm-types;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of Probable Causes.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  typedef probable-cause-enum {
+    type enumeration {
+      enum vendorExtension {
+        value 1;
+        description
+          "vendorExtension";
+      }
+      enum openConnectionIndication {
+        value 2;
+        description
+          "Open connection indication (OCI)";
+        reference "G.798";
+      }
+      enum alarmIndicationSignal {
+        value 3;
+        description
+          "Alarm indication signal";
+        reference "G.798";
+      }
+      enum lossOfSignal {
+        value 4;
+        description
+          "Loss of Signal";
+      }
+      enum opticalLineFail {
+        value 5;
+        description
+          "Optical Line Fail";
+      }
+      enum opticalPowerDegraded {
+        value 6;
+        description
+          "Optical Power Degraded";
+      }
+      enum automaticLaserShutdown {
+        value 7;
+        description
+          "Automatic Laser Shutdown";
+      }
+      enum serverSignalFail {
+        value 8;
+        description
+          "Server Signal Fail (SSF)";
+        reference "G.798";
+      }
+      enum lockedDefect {
+        value 10;
+        description
+          "Locked defect (LCK)";
+        reference "G.798";
+      }
+      enum trailTraceIdentifierMismatch {
+        value 11;
+        description
+          "Trail trace Identifier Mismatch (TIM)";
+        reference "G.798";
+      }
+      enum degradedDefect {
+        value 12;
+        description
+          "Degraded defect (DEG)";
+        reference "G.798";
+      }
+      enum backwardsDefectIndication {
+        value 13;
+        description
+          "Backward Defect Indication (BDI)";
+        reference "G.798";
+      }
+      enum otsSpanlossPowerOutOfSpecificationHigh {
+        value 14;
+      }
+      enum automaticShutoffDisabled {
+        value 15;
+      }
+      enum portLossOfLight {
+        value 17;
+      }
+      enum reflectionTooHigh {
+        value 18;
+      }
+      enum payloadMissingIndication {
+        value 22;
+        description
+          "Will be applicable to ROADM when OSC signaling supported in future (G.709 2016-06 Figure 15-1A, 1B)";
+      }
+      enum forwardDefectIndication {
+        value 23;
+        description
+          "Will be applicable to ROADM when OSC signaling supported in future (G.709 2016-06 Figure 15-1A, 1B)";
+      }
+      enum oscPowerOutOfSpecificationHigh {
+        value 24;
+      }
+      enum oscPowerOutOfSpecificationLow {
+        value 25;
+      }
+      enum powerOutOfSpecificationHigh {
+        value 26;
+      }
+      enum lossOfSynchronization {
+        value 27;
+      }
+      enum linkDown {
+        value 28;
+      }
+      enum equipmentFault {
+        value 29;
+      }
+      enum equipmentRemoved {
+        value 30;
+      }
+      enum equipmentMismatch {
+        value 31;
+      }
+      enum equipmentWarmup {
+        value 32;
+      }
+      enum equipmentLedOn {
+        value 33;
+      }
+      enum equipmentInterConnectFailure {
+        value 34;
+      }
+      enum equipmentMiscabledConnection {
+        value 35;
+      }
+      enum softwareVersionMismatch {
+        value 36;
+      }
+      enum softwareStageInProgress {
+        value 37;
+      }
+      enum databaseCorruption {
+        value 38;
+      }
+      enum databaseVersionMismatch {
+        value 44;
+      }
+      enum firmwareVersionMismatch {
+        value 46;
+      }
+      enum incompatibleFirmware {
+        value 49;
+      }
+      enum firmwareDownloadOrActivationFailure {
+        value 50;
+      }
+      enum firmwareInitInProgress {
+        value 51;
+      }
+      enum softwareReset {
+        value 52;
+      }
+      enum fanCoolingFail {
+        value 53;
+      }
+      enum administrativeDown {
+        value 54;
+      }
+      enum lampTest {
+        value 55;
+      }
+      enum powerProblemA {
+        value 56;
+      }
+      enum powerProblemB {
+        value 57;
+      }
+      enum shelfProvisioningMode {
+        value 58;
+      }
+      enum sysNameChanged {
+        value 59;
+      }
+      enum sysNtpNotSynchronized {
+        value 60;
+      }
+      enum lossOfFrame {
+        value 63;
+      }
+      enum lossOfMultiframe {
+        value 64;
+      }
+      enum backwardIncomingAlignmentError {
+        value 65;
+      }
+      enum incomingAlignmentError {
+        value 66;
+      }
+      enum payloadMismatch {
+        value 67;
+      }
+      enum clientSignalFailDefect {
+        value 68;
+      }
+      enum highBER {
+        value 123;
+      }
+      enum localFault {
+        value 124;
+      }
+      enum remoteFault {
+        value 125;
+      }
+      enum lossOfAlignment {
+        value 126;
+      }
+      enum lossOfFECAlignment {
+        value 127;
+      }
+      enum facilityLoopbackActive {
+        value 128;
+      }
+      enum facilityLoopback2Active {
+        value 129;
+      }
+      enum terminalLoopbackActive {
+        value 130;
+      }
+      enum facilityTestsignalActive {
+        value 131;
+      }
+      enum terminalTestsignalActive {
+        value 132;
+      }
+      enum certificateNotInstalled {
+        value 134;
+      }
+      enum lockoutOfProtection {
+        value 135;
+      }
+      enum forcedSwitchAwayFromWorking {
+        value 136;
+      }
+      enum forcedSwitchAwayFromProtect {
+        value 137;
+      }
+      enum automaticSwitchAwayFromWorkingDueToSF {
+        value 138;
+      }
+      enum automaticSwitchAwayFromProtectDueToSF {
+        value 139;
+      }
+      enum automaticSwitchDueToWTR {
+        value 140;
+      }
+      enum manualSwitchAwayFromWork {
+        value 141;
+      }
+      enum manualSwitchAwayFromProtect {
+        value 142;
+      }
+      enum automaticPowerReduction {
+        value 143;
+      }
+      enum lossOfSignalOSC {
+        value 144;
+      }
+      enum softwareValidateInProgress {
+        value 145;
+      }
+      enum databaseRollbackTimerInProgress {
+        value 146;
+      }
+      enum otdrScanInProgress {
+        value 147;
+      }
+      enum lldpFail {
+        value 148;
+      }
+      enum omsPowerOutOfSpecificationHigh {
+        value 149;
+      }
+      enum omsPowerOutOfSpecificationLow {
+        value 150;
+      }
+      enum automaticSwitchAwayFromWorkingDueToSD {
+        value 151;
+      }
+      enum automaticSwitchAwayFromProtectDueToSD {
+        value 152;
+      }
+      enum backwardIncomingAlignmentErrorTCM1-up {
+        value 153;
+      }
+      enum backwardIncomingAlignmentErrorTCM2-up {
+        value 154;
+      }
+      enum backwardIncomingAlignmentErrorTCM3-up {
+        value 155;
+      }
+      enum backwardIncomingAlignmentErrorTCM4-up {
+        value 156;
+      }
+      enum backwardIncomingAlignmentErrorTCM5-up {
+        value 157;
+      }
+      enum backwardIncomingAlignmentErrorTCM6-up {
+        value 158;
+      }
+      enum incomingAlignmentErrorTCM1-up {
+        value 159;
+      }
+      enum incomingAlignmentErrorTCM2-up {
+        value 160;
+      }
+      enum incomingAlignmentErrorTCM3-up {
+        value 161;
+      }
+      enum incomingAlignmentErrorTCM4-up {
+        value 162;
+      }
+      enum incomingAlignmentErrorTCM5-up {
+        value 163;
+      }
+      enum incomingAlignmentErrorTCM6-up {
+        value 164;
+      }
+      enum backwardsDefectIndicationTCM1-up {
+        value 165;
+      }
+      enum backwardsDefectIndicationTCM2-up {
+        value 166;
+      }
+      enum backwardsDefectIndicationTCM3-up {
+        value 167;
+      }
+      enum backwardsDefectIndicationTCM4-up {
+        value 168;
+      }
+      enum backwardsDefectIndicationTCM5-up {
+        value 169;
+      }
+      enum backwardsDefectIndicationTCM6-up {
+        value 170;
+      }
+      enum degradedDefectTCM1-up {
+        value 171;
+      }
+      enum degradedDefectTCM2-up {
+        value 172;
+      }
+      enum degradedDefectTCM3-up {
+        value 173;
+      }
+      enum degradedDefectTCM4-up {
+        value 174;
+      }
+      enum degradedDefectTCM5-up {
+        value 175;
+      }
+      enum degradedDefectTCM6-up {
+        value 176;
+      }
+      enum trailTraceIdentifierMisMatchTCM1-up {
+        value 177;
+      }
+      enum trailTraceIdentifierMisMatchTCM2-up {
+        value 178;
+      }
+      enum trailTraceIdentifierMisMatchTCM3-up {
+        value 179;
+      }
+      enum trailTraceIdentifierMisMatchTCM4-up {
+        value 180;
+      }
+      enum trailTraceIdentifierMisMatchTCM5-up {
+        value 181;
+      }
+      enum trailTraceIdentifierMisMatchTCM6-up {
+        value 182;
+      }
+      enum alarmIndicationSignalTCM1-up {
+        value 183;
+      }
+      enum alarmIndicationSignalTCM2-up {
+        value 184;
+      }
+      enum alarmIndicationSignalTCM3-up {
+        value 185;
+      }
+      enum alarmIndicationSignalTCM4-up {
+        value 186;
+      }
+      enum alarmIndicationSignalTCM5-up {
+        value 187;
+      }
+      enum alarmIndicationSignalTCM6-up {
+        value 188;
+      }
+      enum openConnectionIndicationTCM1-up {
+        value 189;
+      }
+      enum openConnectionIndicationTCM2-up {
+        value 190;
+      }
+      enum openConnectionIndicationTCM3-up {
+        value 191;
+      }
+      enum openConnectionIndicationTCM4-up {
+        value 192;
+      }
+      enum openConnectionIndicationTCM5-up {
+        value 193;
+      }
+      enum openConnectionIndicationTCM6-up {
+        value 194;
+      }
+      enum lockedDefectTCM1-up {
+        value 195;
+      }
+      enum lockedDefectTCM2-up {
+        value 196;
+      }
+      enum lockedDefectTCM3-up {
+        value 197;
+      }
+      enum lockedDefectTCM4-up {
+        value 198;
+      }
+      enum lockedDefectTCM5-up {
+        value 199;
+      }
+      enum lockedDefectTCM6-up {
+        value 200;
+      }
+      enum lossofTandemConnectionTCM1-up {
+        value 201;
+      }
+      enum lossofTandemConnectionTCM2-up {
+        value 202;
+      }
+      enum lossofTandemConnectionTCM3-up {
+        value 203;
+      }
+      enum lossofTandemConnectionTCM4-up {
+        value 204;
+      }
+      enum lossofTandemConnectionTCM5-up {
+        value 205;
+      }
+      enum lossofTandemConnectionTCM6-up {
+        value 206;
+      }
+      enum backwardIncomingAlignmentErrorTCM1-down {
+        value 207;
+      }
+      enum backwardIncomingAlignmentErrorTCM2-down {
+        value 208;
+      }
+      enum backwardIncomingAlignmentErrorTCM3-down {
+        value 209;
+      }
+      enum backwardIncomingAlignmentErrorTCM4-down {
+        value 210;
+      }
+      enum backwardIncomingAlignmentErrorTCM5-down {
+        value 211;
+      }
+      enum backwardIncomingAlignmentErrorTCM6-down {
+        value 212;
+      }
+      enum incomingAlignmentErrorTCM1-down {
+        value 213;
+      }
+      enum incomingAlignmentErrorTCM2-down {
+        value 214;
+      }
+      enum incomingAlignmentErrorTCM3-down {
+        value 215;
+      }
+      enum incomingAlignmentErrorTCM4-down {
+        value 216;
+      }
+      enum incomingAlignmentErrorTCM5-down {
+        value 217;
+      }
+      enum incomingAlignmentErrorTCM6-down {
+        value 218;
+      }
+      enum backwardsDefectIndicationTCM1-down {
+        value 219;
+      }
+      enum backwardsDefectIndicationTCM2-down {
+        value 220;
+      }
+      enum backwardsDefectIndicationTCM3-down {
+        value 221;
+      }
+      enum backwardsDefectIndicationTCM4-down {
+        value 222;
+      }
+      enum backwardsDefectIndicationTCM5-down {
+        value 223;
+      }
+      enum backwardsDefectIndicationTCM6-down {
+        value 224;
+      }
+      enum degradedDefectTCM1-down {
+        value 225;
+      }
+      enum degradedDefectTCM2-down {
+        value 226;
+      }
+      enum degradedDefectTCM3-down {
+        value 227;
+      }
+      enum degradedDefectTCM4-down {
+        value 228;
+      }
+      enum degradedDefectTCM5-down {
+        value 229;
+      }
+      enum degradedDefectTCM6-down {
+        value 230;
+      }
+      enum trailTraceIdentifierMisMatchTCM1-down {
+        value 231;
+      }
+      enum trailTraceIdentifierMisMatchTCM2-down {
+        value 232;
+      }
+      enum trailTraceIdentifierMisMatchTCM3-down {
+        value 233;
+      }
+      enum trailTraceIdentifierMisMatchTCM4-down {
+        value 234;
+      }
+      enum trailTraceIdentifierMisMatchTCM5-down {
+        value 235;
+      }
+      enum trailTraceIdentifierMisMatchTCM6-down {
+        value 236;
+      }
+      enum alarmIndicationSignalTCM1-down {
+        value 237;
+      }
+      enum alarmIndicationSignalTCM2-down {
+        value 238;
+      }
+      enum alarmIndicationSignalTCM3-down {
+        value 239;
+      }
+      enum alarmIndicationSignalTCM4-down {
+        value 240;
+      }
+      enum alarmIndicationSignalTCM5-down {
+        value 241;
+      }
+      enum alarmIndicationSignalTCM6-down {
+        value 242;
+      }
+      enum openConnectionIndicationTCM1-down {
+        value 243;
+      }
+      enum openConnectionIndicationTCM2-down {
+        value 244;
+      }
+      enum openConnectionIndicationTCM3-down {
+        value 245;
+      }
+      enum openConnectionIndicationTCM4-down {
+        value 246;
+      }
+      enum openConnectionIndicationTCM5-down {
+        value 247;
+      }
+      enum openConnectionIndicationTCM6-down {
+        value 248;
+      }
+      enum lockedDefectTCM1-down {
+        value 249;
+      }
+      enum lockedDefectTCM2-down {
+        value 250;
+      }
+      enum lockedDefectTCM3-down {
+        value 251;
+      }
+      enum lockedDefectTCM4-down {
+        value 252;
+      }
+      enum lockedDefectTCM5-down {
+        value 253;
+      }
+      enum lockedDefectTCM6-down {
+        value 254;
+      }
+      enum lossofTandemConnectionTCM1-down {
+        value 255;
+      }
+      enum lossofTandemConnectionTCM2-down {
+        value 256;
+      }
+      enum lossofTandemConnectionTCM3-down {
+        value 257;
+      }
+      enum lossofTandemConnectionTCM4-down {
+        value 258;
+      }
+      enum lossofTandemConnectionTCM5-down {
+        value 259;
+      }
+      enum lossofTandemConnectionTCM6-down {
+        value 260;
+      }
+      enum multiplexStructureIdentifierMismatch {
+        value 261;
+        description
+          "G798 : 6.2.9 (dMSIM)";
+      }
+      enum lossOfOmfIndication {
+        value 262;
+        description
+          "G798 : 14.3.10.2 Figure 14-73 (dLOOMFI)";
+      }
+      enum lossOfFrameAndLossOfMultiframe {
+        value 263;
+        description
+          "G798 : 6.2.5.3 (dLOFLOM)";
+      }
+      enum lossOfDatabaseRedundancy {
+        value 264;
+        description
+          "loss of database redundancy";
+      }
+      enum databaseLocked {
+        value 265;
+        description
+          "Database locked";
+      }
+      enum createTechInfoInProgress {
+        value 266;
+        description
+          "create-tech-info in progress";
+      }
+      enum circuitPackActivateFailed {
+        value 267;
+        description
+          "circuit-pack activation failed";
+      }
+      enum softwareSubsystemFailed {
+        value 268;
+        description
+          "Software subsystem failed";
+      }
+      enum diskFull {
+        value 269;
+        description
+          "Disk full";
+      }
+      enum lossOfSignalPayload {
+        value 270;
+        description
+          "Loss Of Signal Payload";
+        reference "G.798 6.2.1.2 dLOS-P, 16.8.2 OTSi/FlexO_A_Sk";
+      }
+      enum lossOfLaneAlignment {
+        value 271;
+        description
+          "Loss Of Lane Alignment";
+        reference
+          "G.798 15.3.1.2 FlexO-n/OTUCn_A_Sk that dLOL if the alignment process is in OLA state;
+           16.8.2 OTSi/FlexO_A_Sk that dLOL based on the FEC alignment state diagram";
+      }
+      enum groupIdMismatch {
+        value 272;
+        description
+          "Group Id Mismatch";
+        reference "G.798 dGIDM in Annex B.1.1.2.1; G.798 15.3.1.2 FlexO-n/OTUCn_A_Sk";
+      }
+      enum phyMapMismatch {
+        value 273;
+        description
+          "PHY Map Mismatch";
+        reference "G.798 dPMM in Annex B.1.1.2.2; G.798 15.3.1.2 FlexO-n/OTUCn_A_Sk";
+      }
+      enum powerOutOfSpecificationLow {
+        value 274;
+      }
+      enum gfpLossOfFrameDelineation {
+        value 275;
+        description
+          "GFP loss of frame delineation (dLFD G.806:6.2.5.2) is raised when the frame delineation process (clause 6.3.1 of [ITU-T G.7041]) is not in the 'SYNC' state";
+      }
+      enum cmfLossOfSignal {
+        value 276;
+        description
+          "GFP client signal fail (dCSF G.806:6.2.6.4.1) is raised when a GFP frame with correct tHEC, with aPTI = '100' and a valid UPI code 0x01(G.7041: Table 6-4) is received";
+      }
+      enum cmfLossOfSync {
+        value 277;
+        description
+          "GFP client signal fail (dCSF G.806:6.2.6.4.1) is raised when a GFP frame with correct tHEC, with aPTI = '100' and a valid UPI code 0x02(G.7041: Table 6-4) is received";
+      }
+      enum cmfForwardDefectIndication {
+        value 278;
+        description
+          "GFP client signal fail (dCSF G.806:6.2.6.4.1) is raised when a GFP frame with correct tHEC, with aPTI = '100' and a valid UPI code 0x04(G.7041: Table 6-4) is received";
+      }
+      enum cmfReverseDefectIndication {
+        value 279;
+        description
+          "GFP client signal fail (dCSF G.806:6.2.6.4.1) is raised when a GFP frame with correct tHEC, with aPTI = '100' and a valid UPI code 0x05(G.7041: Table 6-4) is received";
+      }
+    }
+    description
+      "probable cause group";
+  }
+
+  grouping probable-cause {
+    leaf cause {
+      type probable-cause-enum;
+      mandatory true;
+    }
+    leaf extension {
+      type string;
+      mandatory false;
+    }
+    leaf direction {
+      type org-openroadm-common-alarm-pm-types:direction;
+      mandatory true;
+      description
+        "Direction indication of the alarm.";
+    }
+    leaf location {
+      type org-openroadm-common-alarm-pm-types:location;
+      mandatory true;
+      description
+        "location indication of the alarm.";
+    }
+    leaf type {
+      type enumeration {
+        enum communication {
+          value 1;
+        }
+        enum qualityOfService {
+          value 2;
+        }
+        enum processingError {
+          value 3;
+        }
+        enum equipment {
+          value 4;
+        }
+        enum environmental {
+          value 5;
+        }
+      }
+      mandatory false;
+      description
+        "Type of alarm. Based on X.733 event Type.";
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-resource-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-resource-types.yang
new file mode 100644
index 000000000..1a5bd66dd
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-resource-types.yang
@@ -0,0 +1,374 @@
+module org-openroadm-resource-types {
+  namespace "http://org/openroadm/resource/types";
+  prefix org-openroadm-resource-types;
+
+  import org-openroadm-common-node-types {
+    prefix org-openroadm-common-node-types;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common resource types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  typedef resource-type-enum {
+    type enumeration {
+      enum other {
+        value 1;
+        description
+          "Resource of type not found in list.";
+      }
+      enum device {
+        value 2;
+        description
+          "device - ROAMD, Xponder, etc";
+      }
+      enum degree {
+        value 3;
+        description
+          "degree";
+      }
+      enum shared-risk-group {
+        value 4;
+        description
+          "shared-risk-group";
+      }
+      enum connection {
+        value 5;
+        description
+          "connection - this is used by roadm-connection and odu-connection
+           since they are mutually exclusive in the model";
+      }
+      enum connection-map {
+        value 6;
+        description
+          "connection-map";
+      }
+      enum port {
+        value 7;
+        description
+          "port";
+      }
+      enum circuit-pack {
+        value 8;
+        description
+          "circuit pack";
+      }
+      enum internal-link {
+        value 9;
+        description
+          "internal-link";
+      }
+      enum physical-link {
+        value 10;
+        description
+          "physical-link";
+      }
+      enum interface {
+        value 11;
+        description
+          "interface";
+      }
+      enum shelf {
+        value 12;
+        description
+          "shelf";
+      }
+      enum service {
+        value 13;
+        description
+          "service";
+      }
+      enum odu-sncp-pg {
+        value 14;
+        description
+          "odu-sncp-pg";
+      }
+      enum line-amplifier {
+        value 15;
+        description
+          "line-amplifier";
+      }
+      enum xponder {
+        value 16;
+        description
+          "xponder";
+      }
+      enum versioned-service {
+        value 17;
+        description
+          "versioned-service";
+      }
+      enum temp-service {
+        value 18;
+        description
+          "temp-service";
+      }
+    }
+  }
+
+  typedef resource-notification-type {
+    type enumeration {
+      enum resourceCreation {
+        value 1;
+        description
+          "A new instance of a resource has been created.";
+      }
+      enum resourceModification {
+        value 2;
+        description
+          "An existing instance of a resource has been modified. This shall be triggered by changes in configuration, state, status etc.
+           It shall not be triggered by changes in performance measurements, power and temperature readings or any other data that is highly volatile. ";
+      }
+      enum resourceDeletion {
+        value 3;
+        description
+          "An existing instance of a resource has been removed.";
+      }
+    }
+    description
+      "Type of notification about a resource";
+  }
+
+  grouping resource-type {
+    leaf type {
+      type resource-type-enum;
+      mandatory true;
+    }
+    leaf extension {
+      type string;
+      mandatory false;
+    }
+  }
+
+  grouping device-id {
+    description
+      "Device identifier. Unique within the Controller.";
+    leaf node-id {
+      type org-openroadm-common-node-types:node-id-type;
+      description
+        "Node Id is a globally unique identifier for a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping circuit-pack-name {
+    leaf circuit-pack-name {
+      type string;
+      mandatory true;
+      description
+        "Circuit-Pack identifier. Unique within the context of a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping port-name {
+    uses circuit-pack-name;
+    leaf port-name {
+      type string;
+      description
+        "Port identifier. Unique within the context of a circuit-pack.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping physical-link-name {
+    leaf physical-link-name {
+      type string;
+      mandatory true;
+      description
+        "Physical Link identifier. Unique within the context of a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping internal-link-name {
+    leaf internal-link-name {
+      type string;
+      mandatory true;
+      description
+        "Internal Link identifier. Unique within the context of a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping connection-name {
+    leaf connection-name {
+      type string;
+      description
+        "Connection name. Unique within the context of a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping degree-number {
+    leaf degree-number {
+      type uint16;
+      description
+        "Degree identifier. Unique within the context of a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping srg-number {
+    leaf srg-number {
+      type uint16;
+      description
+        "Shared Risk Group identifier. Unique within the context of a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping shelf-name {
+    leaf shelf-name {
+      type string;
+      mandatory true;
+      description
+        "Shelf-id identifier. Unique within the context of a device.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping service-name {
+    leaf service-name {
+      type string;
+      mandatory true;
+      description
+        "Service identifier. Unique within the context of a network.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping versioned-service-name {
+    leaf versioned-service-name {
+      type string;
+      mandatory true;
+      description
+        "Service identifier. Unique within the context of a network.
+         Same as leafref value in model, if applicable.";
+    }
+    leaf version-number {
+      type uint64;
+      mandatory true;
+      description
+        "version-number of the service";
+    }
+  }
+
+  grouping temp-service-name {
+    leaf common-id {
+      type string;
+      mandatory true;
+      description
+        "Service identifier. Unique within the context of a network.
+         Same as leafref value in model, if applicable.";
+    }
+  }
+
+  grouping interface-name {
+    leaf interface-name {
+      type string;
+      mandatory true;
+      description
+        "Interface identifier.";
+    }
+  }
+
+  grouping other-resource-id {
+    leaf other-resource-id {
+      type string;
+      mandatory true;
+      description
+        "resource-id for other.";
+    }
+  }
+
+  grouping odu-sncp-pg-name {
+    leaf odu-sncp-pg-name {
+      type string;
+      mandatory true;
+      description
+        "name of the odu-snc-pg";
+    }
+  }
+
+  grouping amp-number {
+    leaf amp-number {
+      type uint8;
+      mandatory true;
+      description
+        "number of the line-amplifier";
+    }
+  }
+
+  grouping xpdr-number {
+    leaf xpdr-number {
+      type uint16;
+      mandatory true;
+      description
+        "number of the xponder";
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-resource.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-resource.yang
new file mode 100644
index 000000000..5d102398e
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-resource.yang
@@ -0,0 +1,358 @@
+module org-openroadm-resource {
+  namespace "http://org/openroadm/resource";
+  prefix org-openroadm-resource;
+
+  import org-openroadm-interfaces {
+    prefix org-openroadm-interfaces;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-otn-common-types {
+    prefix org-openroadm-otn-common-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-common-optical-channel-types {
+    prefix org-openroadm-common-optical-channel-types;
+    revision-date 2019-11-29;
+  }
+  import org-openroadm-resource-types {
+    prefix org-openroadm-resource-types;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of resources.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  grouping eth-attributes {
+    leaf speed {
+      type uint32;
+      description
+        "Set speed of the interface, unit mbps.
+         This is for ETH facility. ";
+    }
+  }
+
+  grouping mc-ttp-attributes {
+    description
+      "Media channel termination point. Models bandwidth allocation in physical media. Network media channels may be provisioned in the spectrum characterized by the frequency limits.";
+    leaf min-freq {
+      type org-openroadm-common-optical-channel-types:frequency-THz;
+      config true;
+      description
+        "Minimum Frequency in THz. Granularity is hardware dependent, based on pixel resolution. eg. ITU 12.5GHz frequency slots. Range covers C+L";
+    }
+    leaf max-freq {
+      type org-openroadm-common-optical-channel-types:frequency-THz;
+      config true;
+      description
+        "Maximum Frequency in THz. Granularity is hardware dependent, based on pixel resolution. eg. ITU 12.5GHz frequency slots. Range covers C+L";
+    }
+  }
+
+  grouping nmc-ctp-attributes {
+    description
+      "Network Media Channel attributes";
+    leaf frequency {
+      type org-openroadm-common-optical-channel-types:frequency-THz;
+      config true;
+      description
+        "Center Frequency in THz.  This is not constrained by mc-capabilities.  It must fit (when combined with width) inside any containing media channel.";
+    }
+    leaf width {
+      type org-openroadm-common-optical-channel-types:frequency-GHz;
+      config true;
+      description
+        "Frequency width in GHz.  This is not constrained by mc-capabilities.  It must fit (when combined with frequency) inside any containing media channel.";
+    }
+  }
+
+  grouping och-attributes {
+    description
+      "Optical Channel attributes";
+    leaf rate {
+      type identityref {
+        base org-openroadm-common-optical-channel-types:och-rate-identity;
+      }
+      description
+        "rate";
+    }
+    leaf frequency {
+      type org-openroadm-common-optical-channel-types:frequency-THz;
+      description
+        "Center Frequency in THz.";
+    }
+    leaf width {
+      type org-openroadm-common-optical-channel-types:frequency-GHz;
+      config false;
+      description
+        "Frequency width in GHz.";
+    }
+    leaf modulation-format {
+      type org-openroadm-common-optical-channel-types:modulation-format;
+      description
+        "Modulation format";
+    }
+  }
+
+  grouping odu-attributes {
+    description
+      "ODU attributes";
+    leaf rate {
+      type identityref {
+        base org-openroadm-otn-common-types:odu-rate-identity;
+      }
+      description
+        "rate identity of the ODU. 'identityref' is used
+         to allow to extend for future higher rates";
+    }
+    container parent-odu-allocation {
+      description
+        "parent odu allocation";
+      leaf trib-port-number {
+        type uint16 {
+          range "1 .. 80";
+        }
+        description
+          "Assigned tributary port number in parent OPU";
+      }
+      leaf-list trib-slots {
+        type uint16 {
+          range "1 .. 80";
+        }
+        min-elements 1;
+        max-elements 80;
+        description
+          "Assigned trib slots occupied in parent OPU MSI";
+      }
+    }
+  }
+
+  grouping otu-attributes {
+    description
+      "OTU attributes";
+    leaf rate {
+      type identityref {
+        base org-openroadm-otn-common-types:otu-rate-identity;
+      }
+      description
+        "rate identity of the OTU. 'identityref' is used
+         to allow to extend for future higher rates";
+    }
+  }
+
+  grouping resource-reporting {
+    leaf type {
+      type identityref {
+        base org-openroadm-interfaces:interface-type;
+      }
+      mandatory true;
+      description
+        "The type of the interface.";
+    }
+    container ethernet {
+      when "../type = 'ethernetCsmacd'";
+      description
+        "Ethernet Interfaces";
+      uses eth-attributes;
+    }
+    container mc-ttp {
+      when "../type = 'mediaChannelTrailTerminationPoint'";
+      description
+        "Media Channel Trail Termination Point (MC-TTP)";
+      uses mc-ttp-attributes;
+    }
+    container nmc-ctp {
+      when "../type = 'networkMediaChannelConnectionTerminationPoint'";
+      description
+        "Network Media Channel Connection Termination Point (NMC-CTP)";
+      uses nmc-ctp-attributes;
+    }
+    container och {
+      when "../type = 'opticalChannel'";
+      description
+        "Optical Channel (OCh):
+         Models the optical channel interfaces for an Optical White Box.";
+      uses och-attributes;
+    }
+    container odu {
+      when "../type = 'otnOdu'";
+      presence "Attribute Nodes for Optical Data Unit (ODU)";
+      description
+        "Optical Channel Data Unit (ODU)";
+      uses odu-attributes;
+    }
+    container otu {
+      when "../type = 'otnOtu'";
+      description
+        "Optical Channel Transport Unit (OTU)";
+      uses otu-attributes;
+    }
+  }
+
+  grouping resource {
+    description
+      "This resource identifier is intended to provide a generic identifier
+       for any resource that can be used without specific knowledge of
+       the resource.";
+    container device {
+      description
+        "Device of the resource, used only when the system using this
+         model report on more than one device. ";
+      uses org-openroadm-resource-types:device-id;
+    }
+    container resource {
+      choice resource {
+        case circuit-pack {
+          uses org-openroadm-resource-types:circuit-pack-name;
+        }
+        case port {
+          container port {
+            uses org-openroadm-resource-types:port-name;
+          }
+        }
+        case connection {
+          uses org-openroadm-resource-types:connection-name {
+            refine "connection-name" {
+              mandatory true;
+            }
+          }
+        }
+        case physical-link {
+          uses org-openroadm-resource-types:physical-link-name;
+        }
+        case internal-link {
+          uses org-openroadm-resource-types:internal-link-name;
+        }
+        case shelf {
+          uses org-openroadm-resource-types:shelf-name;
+        }
+        case srg {
+          uses org-openroadm-resource-types:srg-number {
+            refine "srg-number" {
+              mandatory true;
+            }
+          }
+        }
+        case degree {
+          uses org-openroadm-resource-types:degree-number {
+            refine "degree-number" {
+              mandatory true;
+            }
+          }
+        }
+        case service {
+          uses org-openroadm-resource-types:service-name;
+        }
+        case interface {
+          uses org-openroadm-resource-types:interface-name;
+        }
+        case odu-sncp-pg {
+          uses org-openroadm-resource-types:odu-sncp-pg-name;
+        }
+        case other {
+          uses org-openroadm-resource-types:other-resource-id;
+        }
+        case device {
+          uses org-openroadm-resource-types:device-id {
+            refine "node-id" {
+              mandatory true;
+            }
+          }
+        }
+        case line-amplifier {
+          uses org-openroadm-resource-types:amp-number;
+        }
+        case xponder {
+          uses org-openroadm-resource-types:xpdr-number;
+        }
+        case versioned-service {
+          uses org-openroadm-resource-types:versioned-service-name;
+        }
+        case temp-service {
+          uses org-openroadm-resource-types:temp-service-name;
+        }
+      }
+    }
+    container resourceType {
+      uses org-openroadm-resource-types:resource-type;
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-swdl.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-swdl.yang
new file mode 100644
index 000000000..79064b4d3
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-swdl.yang
@@ -0,0 +1,203 @@
+module org-openroadm-swdl {
+  namespace "http://org/openroadm/de/swdl";
+  prefix org-openroadm-swdl;
+
+  import ietf-yang-types {
+    prefix yang;
+    revision-date 2013-07-15;
+  }
+  import org-openroadm-common-types {
+    prefix org-openroadm-common-types;
+    revision-date 2019-11-29;
+  }
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "Yang definitions for System Management.
+
+     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+     All other rights reserved.
+
+     Redistribution and use in source and binary forms, with or without modification,
+     are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation and/or
+       other materials provided with the distribution.
+     * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+       contributors may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+     IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+     OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+     WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+     POSSIBILITY OF SUCH DAMAGE.";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2019-09-27 {
+    description
+      "Version 6.0.0";
+  }
+  revision 2019-05-31 {
+    description
+      "Version 5.1.0";
+  }
+  revision 2019-03-29 {
+    description
+      "Version 5.0.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2018-09-28 {
+    description
+      "Version 4.0.0";
+  }
+  revision 2018-03-30 {
+    description
+      "Version 3.0.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-07-28 {
+    description
+      "Version 2.0.1 - added revision-date to imports";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  grouping sw-bank {
+    description
+      "software bank group";
+    leaf sw-version {
+      type string;
+      description
+        "Gissue of the SW in this bank";
+    }
+    leaf sw-validation-timer {
+      type string {
+        pattern '(([0-1][0-9]|2[0-3])-([0-5][0-9])-([0-5][0-9]))';
+      }
+      description
+        "value of validation timer in hh-mm-ss";
+    }
+    leaf activation-date-time {
+      type yang:date-and-time;
+      description
+        "activation date and time: The date load was activated";
+    }
+  }
+
+  grouping database-info-group {
+    description
+      "database info group";
+    leaf last-restored-time {
+      type yang:date-and-time;
+      description
+        "last restored time for the database, or the time that the database was created, whichever is later";
+    }
+    leaf rollback-timer {
+      type string {
+        pattern '(([0-1][0-9]|2[0-3])-([0-5][0-9])-([0-5][0-9]))';
+      }
+      description
+        "value of rollback timer in hh-mm-ss";
+    }
+    leaf activation-date-time {
+      type yang:date-and-time;
+      description
+        "activation date and time: The date load was activated";
+    }
+  }
+
+  rpc sw-stage {
+    description
+      "SW stage - copies the SW from repo to staging bank";
+    input {
+      leaf filename {
+        type string {
+          length "10..255";
+        }
+        description
+          "file name which has the load";
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  rpc sw-activate {
+    description
+      "Activate new load";
+    input {
+      leaf version {
+        type string;
+        description
+          " software version of the new load which is being activated";
+      }
+      leaf validationTimer {
+        type string;
+        description
+          "validation timer hh-mm-ss";
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  rpc cancel-validation-timer {
+    description
+      "Cancel validation timer which user provisioned as part of activate command";
+    input {
+      leaf accept {
+        type boolean;
+        default "true";
+        description
+          " TRUE means  validation timer is cancelled and new load is accepted";
+      }
+    }
+    output {
+      uses org-openroadm-common-types:rpc-response-status;
+    }
+  }
+  notification sw-stage-notification {
+    description
+      "notification for sw-stage.";
+    uses org-openroadm-common-types:rpc-response-status;
+  }
+  notification sw-activate-notification {
+    description
+      "notification for sw-activate events.";
+    leaf sw-active-notification-type {
+      type org-openroadm-common-types:activate-notification-type;
+    }
+    uses org-openroadm-common-types:rpc-response-status;
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-switching-pool-types.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-switching-pool-types.yang
new file mode 100644
index 000000000..a698a3ffd
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-switching-pool-types.yang
@@ -0,0 +1,63 @@
+module org-openroadm-switching-pool-types {
+  namespace "http://org/openroadm/switching-pool-types";
+  prefix org-openroadm-switching-pool-types;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of common types.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+
+  typedef switching-pool-types {
+    type enumeration {
+      enum non-blocking {
+        value 1;
+        description
+          "Single non-blocking element";
+      }
+      enum blocking {
+        value 2;
+        description
+          "Multiple connected non-blocking lists";
+      }
+    }
+  }
+}
diff --git a/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-user-mgmt.yang b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-user-mgmt.yang
new file mode 100644
index 000000000..846250f2a
--- /dev/null
+++ b/sdnr/wt/devicemanager-openroadm/provider/src/main/yang/org-openroadm-user-mgmt.yang
@@ -0,0 +1,161 @@
+module org-openroadm-user-mgmt {
+  namespace "http://org/openroadm/user-mgmt";
+  prefix org-openroadm-user-mgmt;
+
+  organization
+    "Open ROADM MSA";
+  contact
+    "OpenROADM.org";
+  description
+    "YANG definitions of user managements.
+
+      Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016,
+      All other rights reserved.
+
+      Redistribution and use in source and binary forms, with or without modification,
+      are permitted provided that the following conditions are met:
+
+      * Redistributions of source code must retain the above copyright notice, this
+        list of conditions and the following disclaimer.
+      * Redistributions in binary form must reproduce the above copyright notice,
+        this list of conditions and the following disclaimer in the documentation and/or
+        other materials provided with the distribution.
+      * Neither the Members of the Open ROADM MSA Agreement nor the names of its
+        contributors may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+      THIS SOFTWARE IS PROVIDED BY THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT ''AS IS''
+      AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+      IN NO EVENT THE MEMBERS OF THE OPEN ROADM MSA  AGREEMENT BE LIABLE FOR ANY DIRECT,
+      INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE, DATA,
+      OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+      WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+      ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE";
+
+  revision 2019-11-29 {
+    description
+      "Version 6.1.0";
+  }
+  revision 2018-11-30 {
+    description
+      "Version 4.1.0";
+  }
+  revision 2017-12-15 {
+    description
+      "Version 2.2";
+  }
+  revision 2017-09-29 {
+    description
+      "Version 2.1";
+  }
+  revision 2017-06-26 {
+    description
+      "Version 2.0";
+  }
+  revision 2016-10-14 {
+    description
+      "Version 1.2";
+  }
+
+  typedef username-type {
+    type string {
+      length "3..32";
+      pattern '[a-z][a-z0-9]{2,31}' {
+        error-message
+          "A username must begin with a lowercase letter, The remainder
+           of the string may contain lowercase letters, or numbers 0 through 9.";
+      }
+    }
+    description
+      "The user name string identifying this entry.";
+  }
+
+  typedef password-type {
+    type string {
+      length "8..128";
+      pattern '[a-zA-Z0-9!$%\^()\[\]_\-~{}.+]*' {
+        error-message "Password content does not meet the requirements";
+      }
+    }
+    description
+      "The password for this entry. This shouldn't be in clear text
+       The Password must contain at least 2 characters from
+       each of the following groups:
+       a) Lower case alphabetic (a-z)
+       b) Upper case alphabetic (A-Z)
+       c) Numeric 0-9
+       d) Special characters Allowed !$%^()[]_-~{}.+
+       Password must not contain Username.";
+  }
+
+  grouping user-profile {
+    list user {
+      key "name";
+      description
+        "The list of local users configured on this device.";
+      leaf name {
+        type username-type;
+        description
+          "The user name string identifying this entry.";
+      }
+      leaf password {
+        type password-type;
+        description
+          "The password for this entry.";
+      }
+      leaf group {
+        type enumeration {
+          enum sudo;
+        }
+        description
+          "The group to which the user is associated to.";
+      }
+    }
+  }
+
+  rpc chg-password {
+    input {
+      leaf currentPassword {
+        type password-type;
+        mandatory true;
+        description
+          "provide the current password";
+      }
+      leaf newPassword {
+        type password-type;
+        mandatory true;
+        description
+          "provide a new password";
+      }
+      leaf newPasswordConfirm {
+        type password-type;
+        mandatory true;
+        description
+          "re-enter the new password ";
+      }
+    }
+    output {
+      leaf status {
+        type enumeration {
+          enum Successful {
+            value 1;
+          }
+          enum Failed {
+            value 2;
+          }
+        }
+        mandatory true;
+        description
+          "Successful or Failed";
+      }
+      leaf status-message {
+        type string;
+        description
+          "Gives a more detailed reason for success / failure";
+      }
+    }
+  }
+}