{
    "ports": [
        {
            "portType": ${prop.wan.portType},
            "portNumber": ${prop.wan.portNumber},
            "deviceId": ${prop.wan.deviceId},
            "portSwitch": "layer3-port",
            "linkInfo": {
                 "linkType": "Cellular",
                 "cellular": {
                     "apn" : ${prop.wan.apn-name}
                 },
                 "atm": null,
                 "ethernet": null                 
            }
        }
    ]
}