path: root/actn-interface-tools/actn-model/src/main/yang/ietf-eth-tran-service@2021-01-11.yang

module ietf-eth-tran-service {
  yang-version 1.1;
  namespace "urn:ietf:params:xml:ns:yang:ietf-eth-tran-service";

  prefix "ethtsvc";
  import ietf-yang-types {
    prefix "yang";
    //reference "RFC 6991 - Common YANG Data Types";
  }

  import ietf-te-types {
    prefix "te-types";
    //reference "RFC 8776 - Traffic Engineering Common YANG Types";
  }

  import ietf-eth-tran-types {
    prefix "etht-types";
    //reference "RFC XXXX - A YANG Data Model for Transport
     //          Network Client Signals";
  }

  import ietf-routing-types {
    prefix "rt-types";
    //reference "RFC 8294 - Common YANG Data Types for the
     //          Routing Area";

  }

  import ietf-te {
    prefix "te";
    //reference "RFC YYYY - A YANG Data Model for Traffic
      //         Engineering Tunnels and Interfaces";
  }

  organization
    "Internet Engineering Task Force (IETF) CCAMP WG";
  contact
    "
      WG List: <mailto:ccamp@ietf.org>

      ID-draft editor:
        Haomian Zheng (zhenghaomian@huawei.com);
        Italo Busi (italo.busi@huawei.com);
        Aihua Guo (aihuaguo.ietf@gmail.com);
        Anton Snitser (antons@sedonasys.com);0
        Francesco Lazzeri (francesco.lazzeri@ericsson.com);
        Yunbin Xu (xuyunbin@caict.ac.cn);
        Yang Zhao (zhaoyangyjy@chinamobile.com);
        Xufeng Liu (xufeng.liu.ietf@gmail.com);
        Giuseppe Fioccola (giuseppe.fioccola@huawei.com);
    ";

  description
    "This module defines a YANG data model for describing
     the Ethernet services. The model fully conforms to the
     Network Management Datastore Architecture (NMDA).

     Copyright (c) 2021 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 XXXX; see
     the RFC itself for full legal notices.";

  revision 2021-01-11 {
    description
      "version -04 as an WG document";
    reference
      "draft-ietf-ccamp-client-signal-yang";
  }

  /*
   * Groupings
   */

  grouping vlan-classification {
    description
      "A grouping which represents classification
      on an 802.1Q VLAN tag.";

    leaf tag-type {
      type etht-types:eth-tag-classify;
      description
        "The tag type used for VLAN classification.";
    }
    choice individual-bundling-vlan {
      description
        "VLAN based classification can be individual
         or bundling.";

      case individual-vlan {
        leaf vlan-value {
          type etht-types:vlanid;
          description
            "VLAN ID value.";
        }
      }

      case vlan-bundling {
        leaf vlan-range {
          type etht-types:vid-range-type;
          description
            "List of VLAN ID values.";
        }
      }
    }
  }

  grouping vlan-write {
    description
      "A grouping which represents push/pop operations
       of an 802.1Q VLAN tag.";

    leaf tag-type {
      type etht-types:eth-tag-type;
      description
        "The VLAN tag type to push/swap.";
    }
    leaf vlan-value {
      type etht-types:vlanid;
      description
        "The VLAN ID value to push/swap.";
    }
/*
 * To be added: this attribute is used when:
 * a) the ETH service has only one CoS (as in current version)
 * b) as a default when a mapping between a given CoS value
 *    and the PCP value is not defined (in future versions)
 */
    leaf default-pcp {
      type uint8 {
        range "0..7";
      }
      description
        "The default Priority Code Point (PCP) value to push/swap";
    }
  }

  grouping vlan-operations {
    description
      "A grouping which represents VLAN operations.";

      leaf pop-tags {
      type uint8 {
        range "1..2";
      }
      description
        "The number of VLAN tags to pop (or swap if used in
         conjunction with push-tags)";
    }
    container push-tags {
      description
        "The VLAN tags to push (or swap if used in
         conjunction with pop-tags)";

      container outer-tag {
        presence
          "Indicates existence of the outermost VLAN tag to
           push/swap";

        description
          "The outermost VLAN tag to push/swap.";

        uses vlan-write;
      }
      container second-tag {
      must
        '../outer-tag/tag-type = "etht-types:s-vlan-tag-type" and ' +
        'tag-type = "etht-types:c-vlan-tag-type"'
        {

          error-message
            "
              When pushing/swapping two tags, the outermost tag must
              be specified and of S-VLAN type and the second
              outermost tag must be of C-VLAN tag type.
            ";
          description
            "
              For IEEE 802.1Q interoperability, when pushing/swapping
              two tags, it is required that the outermost tag exists
              and is an S-VLAN, and the second outermost tag is a
              C-VLAN.
            ";
        }

        presence
          "Indicates existence of a second outermost VLAN tag to
           push/swap";

        description
          "The second outermost VLAN tag to push/swap.";
        uses vlan-write;
      }
    }
  }

  grouping named-or-value-bandwidth-profile {
    description
      "A grouping to configure a bandwdith profile either by
       referencing a named bandwidth profile or by
       configuring the values of the bandwidth profile attributes.";
    choice style {
      description
        "Whether the bandwidth profile is named or defined by value";

      case named {
        description
          "Named bandwidth profile.";
        leaf bandwidth-profile-name {
          type leafref {
             path "/ethtsvc:etht-svc/ethtsvc:globals/"
             + "ethtsvc:named-bandwidth-profiles/"
             + "ethtsvc:bandwidth-profile-name";
             }
          description
            "Name of the bandwidth profile.";
        }
      }
      case value {
        description
          "Bandwidth profile configured by value.";
        uses etht-types:etht-bandwidth-profiles;
      }
    }
  }

  grouping bandwidth-profiles {
    description
      "A grouping which represent bandwidth profile configuration.";

    choice direction {
      description
        "Whether the bandwidth profiles are symmetrical or
         asymmetrical";
      case symmetrical {
        description
          "The same bandwidth profile is used to describe both
           the ingress and the egress bandwidth profile.";
        container ingress-egress-bandwidth-profile {
          description
            "The bandwdith profile used in both directions.";
          uses named-or-value-bandwidth-profile;
        }
      }
      case asymmetrical {
        description
          "Ingress and egress bandwidth profiles can be specified.";
        container ingress-bandwidth-profile {
          description
            "The bandwdith profile used in the ingress direction.";
          uses named-or-value-bandwidth-profile;
        }
        container egress-bandwidth-profile {
          description
            "The bandwdith profile used in the egress direction.";
          uses named-or-value-bandwidth-profile;
        }
      }
    }
  }

  grouping etht-svc-access-parameters {
    description
      "ETH services access parameters";

    leaf access-node-id {
      type te-types:te-node-id;
      description
        "The identifier of the access node in
         the ETH topology.";
    }
    leaf access-ltp-id {
      type te-types:te-tp-id;
      description
        "The TE link termination point identifier, used
         together with access-node-id to identify the
         access LTP.";
    }
    leaf access-role {
      type identityref {
        base etht-types:access-role;
      }
      description
        "Indicate the role of access, e.g., working or protection. ";
    }

    container pm-config {
      uses pm-config-grouping;
      description
      "This grouping is used to set the threshold value for
      performance monitoring. ";
    }

    container state {
      config false;
      description
      "The state is used to monitor the status of service. ";
      leaf operational-state {
        type identityref {
          base te-types:tunnel-state-type;
        }
        description
        "Indicating the operational state of client signal. ";
      }
      leaf provisioning-state {
        type identityref {
          base te-types:lsp-state-type;
        }
        description
        "Indicating the provisional state of client signal,
        especially when there is a change, i.e., revise, create. ";
      }
    }

    leaf performance {
      type identityref {
        base etht-types:performance;
      }
      config false;
      description
        "Performance Monitoring for the service. ";
    }

  }

  grouping etht-svc-tunnel-parameters {
    description
      "ETH services tunnel parameters.";
    choice technology {
      description
        "Service multiplexing is optional and flexible.";

      case native-ethernet {
        /*
         placeholder to support proprietary multiplexing
         (for further discussion)
        */
        list eth-tunnels {
          key name;
          description
            "ETH Tunnel list in native Ethernet scenario.";
          uses tunnels-grouping;
        }
      }

      case frame-base {
        list otn-tunnels {
          key name;
          description
            "OTN Tunnel list in Frame-based scenario.";
          uses tunnels-grouping;
        }
      }

      case mpls-tp {
        container pw {
          description
            "Pseudowire information for Ethernet over MPLS-TP.";
          uses pw-segment-grouping;
        }
      }
    }

/*
 * Open issue: can we constraints it to be used only with mp services?
 */
    leaf src-split-horizon-group {
      type string;
      description
      "Identify a split horizon group at the Tunnel source TTP";
    }
    leaf dst-split-horizon-group {
      type string;
      description
      "Identify a split horizon group at the Tunnel destination TTP";
    }
  }

  grouping  etht-svc-pm-threshold-config {
    description
      "Configuraiton parameters for Ethernet service PM thresholds.";

    leaf sending-rate-high {
      type uint64;
      description
        "High threshold of packet sending rate in kbps.";
    }
    leaf sending-rate-low {
      type uint64;
      description
        "Low threshold of packet sending rate in kbps.";
    }
    leaf receiving-rate-high {
      type uint64;
      description
        "High threshold of packet receiving rate in kbps.";
    }
    leaf receiving-rate-low {
      type uint64;
      description
        "Low threshold of packet receiving rate in kbps.";
    }
  }

  grouping  etht-svc-pm-stats {
    description
      "Ethernet service PM statistics.";

    leaf sending-rate-too-high {
      type uint32;
      description
        "Counter that indicates the number of times the
        sending rate is above the high threshold";
    }
    leaf sending-rate-too-low {
      type uint32;
      description
        "Counter that indicates the number of times the
        sending rate is below the low threshold";
    }
    leaf receiving-rate-too-high {
      type uint32;
      description
        "Counter that indicates the number of times the
        receiving rate is above the high threshold";
    }
    leaf receiving-rate-too-low {
      type uint32;
      description
        "Counter that indicates the number of times the
        receiving rate is below the low threshold";
    }
  }

  grouping  etht-svc-instance-config {
    description
      "Configuraiton parameters for Ethernet services.";

    leaf etht-svc-name {
      type string;
      description
        "Name of the ETH service.";
    }

    leaf etht-svc-title {
      type string;
      description
        "The Identifier of the ETH service.";
    }

    leaf etht-svc-descr {
      type string;
      description
        "Description of the ETH service.";
    }

    leaf etht-svc-customer {
      type string;
      description
        "Customer of the ETH service.";
    }

     leaf etht-svc-type {
      type etht-types:service-type;
      description
        "Type of ETH service (p2p, mp2mp or rmp).";
      /* Add default as p2p */
    }

     leaf etht-svc-lifecycle {
      type etht-types:lifecycle-status;
      description
        "Lifecycle state of ETH service.";
      /* Add default as installed  */
    }
    uses te-types:te-topology-identifier;

    uses resilience-grouping;
    list etht-svc-end-points {
      key etht-svc-end-point-name;
      description
        "The logical end point for the ETH service. ";
      uses etht-svc-end-point-grouping;
    }

    container underlay {
      description
        "The unterlay tunnel information that carrying the
        ETH service. ";
      uses etht-svc-tunnel-parameters;
    }

    leaf admin-status {
      type identityref {
        base te-types:tunnel-admin-state-type;
      }
      default te-types:tunnel-admin-state-up;
      description "ETH service administrative state.";
    }
  }

  grouping  etht-svc-instance-state {
    description
      "State parameters for Ethernet services.";

    leaf operational-state {
    type identityref {
        base te-types:tunnel-state-type;
      }
      default te-types:tunnel-state-up;
    description "ETH service operational state.";
    }
    leaf provisioning-state {
      type identityref {
        base te-types:lsp-state-type;
      }
      description "ETH service provisioning state.";
    }
    leaf creation-time {
      type yang:date-and-time;
      description
        "Time of ETH service creation.";
    }
    leaf last-updated-time {
      type yang:date-and-time;
      description
        "Time of ETH service last update.";
    }

    leaf created-by {
       type string;
       description
         "The client signal is created by whom,
          can be a system or staff ID.";
     }
     leaf last-updated-by {
       type string;
       description
         "The client signal is last updated by whom,
          can be a system or staff ID.";
     }
     leaf owned-by {
       type string;
       description
         "The client signal is last updated by whom,
          can be a system ID.";
     }
  }

  /*
   * Data nodes
   */

  container etht-svc {
    description
      "ETH services.";

    container globals {
      description
        "Globals Ethernet configuration data container";
      list named-bandwidth-profiles {
        key bandwidth-profile-name;
        description
          "List of named bandwidth profiles used by
           Ethernet services.";

        leaf bandwidth-profile-name {
          type string;
          description
            "Name of the bandwidth profile.";
        }
        uses etht-types:etht-bandwidth-profiles;
      }
    }

    list etht-svc-instances {
      key etht-svc-name;
      description
        "The list of p2p ETH service instances";

      uses etht-svc-instance-config;

      container state {
        config false;
        description
          "Ethernet Service states.";

        uses etht-svc-instance-state;
      }
    }
  }

  grouping resilience-grouping {
    description
      "Grouping for resilience configuration. ";
    container resilience {
    description
      "To configure the data plane protection parameters,
      currently a placeholder only, future candidate attributes
      include, Revert, WTR, Hold-off Timer, ...";
      uses te:protection-restoration-properties;
    }
  }

  grouping etht-svc-end-point-grouping {
    description
      "Grouping for the end point configuration.";
    leaf etht-svc-end-point-name {
      type string;
      description
      "The name of the logical end point of ETH service. ";
    }

    leaf etht-svc-end-point-id {
      type string;
      description
      "The identifier of the logical end point of ETH service.";
    }

    leaf etht-svc-end-point-descr {
      type string;
      description
      "The description of the logical end point of ETH service. ";
    }

    leaf topology-role {
      type identityref {
        base etht-types:topology-role;
      }
      description
      "Indicating the underlay topology role,
      e.g., hub,spoke, any-to-any ";
    }

    container resilience {
      description
      "Placeholder for resilience configuration, for future study. ";
    }

    list etht-svc-access-points {
      key access-point-id;
      min-elements "1";
/*
  Open Issue:
    Is it possible to limit the max-elements only for p2p services?
      max-elements "2";
*/
      description
        "List of the ETH trasport services access point instances.";

      leaf access-point-id {
        type string;
        description
          "ID of the service access point instance";
      }
      uses etht-svc-access-parameters;
    }

    leaf service-classification-type {
      type identityref {
        base etht-types:service-classification-type;
      }
      description
        "Service classification type.";
    }

    choice service-classification {
      description
        "Access classification can be port-based or
         VLAN based.";

      case port-classification {
        /* no additional information */
      }

      case vlan-classification {
        container outer-tag {
          presence "The outermost VLAN tag exists";
          description
            "Classifies traffic using the outermost VLAN tag.";

          uses vlan-classification;
        }
        container second-tag {
          must
            '../outer-tag/tag-type = "etht-types:classify-s-vlan" and ' +
            'tag-type = "etht-types:classify-c-vlan"'
          {
            error-message
              "
                When matching two tags, the outermost tag must be
                specified and of S-VLAN type and the second
                outermost tag must be of C-VLAN tag type.
              ";
            description
              "
                For IEEE 802.1Q interoperability, when matching two
                tags, it is required that the outermost tag exists
                and is an S-VLAN, and the second outermost tag is a
                C-VLAN.
              ";
          }
          presence "The second outermost VLAN tag exists";

          description
            "Classifies traffic using the second outermost VLAN tag.";

          uses vlan-classification;
        }
      }
    }

/*
 * Open issue: can we constraints it to be used only with mp services?
 */
    leaf split-horizon-group {
      type string;
      description "Identify a split horizon group";
    }

    uses bandwidth-profiles;

    container vlan-operations {
      description
        "Configuration of VLAN operations.";
      choice direction {
        description
          "Whether the VLAN operations are symmetrical or
           asymmetrical";
        case symmetrical {
          container symmetrical-operation {
            uses vlan-operations;
            description
              "Symmetrical operations.
               Expressed in the ingress direction, but
               the reverse operation is applied to egress traffic";
          }
        }
        case asymmetrical {
          container asymmetrical-operation {
            description "Asymmetrical operations";
            container ingress {
              uses vlan-operations;
              description "Ingress operations";
            }
            container egress {
              uses vlan-operations;
              description "Egress operations";
            }
          }
        }
      }
    }
  }

  grouping pm-config-grouping {
    description
      "Grouping used for Performance Monitoring Configuration. ";
    leaf pm-enable {
      type boolean;
      description
      "Whether to enable the performance monitoring.";
    }

    leaf sending-rate-high {
      type uint64;
      description
      "The upperbound of sending rate.";
    }

    leaf sending-rate-low {
      type uint64;
      description
      "The lowerbound of sending rate.";
    }

    leaf receiving-rate-high {
      type uint64;
      description
      "The upperbound of receiving rate.";
    }

    leaf receiving-rate-low {
      type uint64;
      description
      "The lowerbound of receiving rate.";
    }
  }

  grouping pw-segment-grouping {
    description
      "Grouping used for PW configuration. ";
    leaf pw-id {
      type string;
      description
      "The Identifier information of pseudowire. ";
    }

    leaf pw-name {
      type string;
      description
      "The name information of pseudowire.";
    }

    leaf transmit-label {
      type rt-types:mpls-label;
      description
      "Transmit label information in PW. ";
    }

    leaf receive-label {
      type rt-types:mpls-label;
      description
      "Receive label information in PW. ";
    }

    leaf encapsulation-type {
      type identityref {
        base etht-types:encapsulation-type;
      }
      description
        "The encapsulation type, raw or tag. ";
    }

    leaf oper-status {
      type identityref {
        base te-types:tunnel-state-type;
      }
      config false;
      description
        "The operational state of the PW segment. ";
    }

    container ingress-bandwidth-profile {
      description
        "Bandwidth Profile for ingress. ";
      uses pw-segment-named-or-value-bandwidth-profile;
    }

    list pw-paths {
      key path-id;
      description
        "A list of pw paths. ";

      leaf path-id {
        type uint8;
        description
          "The identifier of pw paths. ";

      }

      list tp-tunnels {
        key name;
        description
          "Names of TP Tunnel underlay";
        leaf name {
          type string;
          description
            "Names of TP Tunnel underlay";
          }
      }
    }

  }

  grouping pw-segment-named-or-value-bandwidth-profile {
    description
      "A grouping to configure a bandwdith profile either by
       referencing a named bandwidth profile or by
       configuring the values of the bandwidth profile attributes.";
    choice style {
      description
        "Whether the bandwidth profile is named or defined by value";
      case named {
        description
          "Named bandwidth profile.";
        leaf bandwidth-profile-name {
          type leafref {
            path "/ethtsvc:etht-svc/ethtsvc:globals/"
            + "ethtsvc:named-bandwidth-profiles/"
            + "ethtsvc:bandwidth-profile-name";
          }
          description
            "Name of the bandwidth profile.";
        }
      }
      case value {
        description
          "Bandwidth profile configured by value.";
        uses etht-types:pw-segement-bandwidth-profile-grouping;
      }
    }
  }

  grouping tunnels-grouping {
    description
      "A group of tunnels. ";
    leaf name {
      type leafref {
        path "/te:te/te:tunnels/te:tunnel/te:name";
        require-instance false;
      }
      description "Dependency tunnel name";
    }
    leaf encoding {
      type identityref {
        base te-types:lsp-encoding-types;
      }
      description "LSP encoding type";
      reference "RFC3945";
    }
    leaf switching-type {
      type identityref {
        base te-types:switching-capabilities;
      }
      description "LSP switching type";
      reference "RFC3945";
    }
  }
}