module org-openroadm-lldp {
  namespace "http://org/openroadm/lldp";
  prefix org-openroadm-lldp;

  import ietf-inet-types {
    prefix inet;
  }
  import org-openroadm-device {
    prefix org-openroadm-device;
  }
  import iana-afn-safi {
    prefix ianaaf;
  }
  import org-openroadm-resource-types {
    prefix org-openroadm-resource-types;
  }
  import ietf-yang-types {
    prefix yang;
  }

  organization "Open ROADM MSA";
  contact
    "OpenROADM.org";
  description
    "YANG definitions for lldp protocol.
     
     Copyright of the Members of the Open ROADM MSA Agreement dated (c) 2016, 
     AT&T Intellectual Property.  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 2016-10-14 {
    description
      "Version 1.2";
  }
  grouping nbr-info-grp { 
    description
      "Display LLDP Neighbour ";

    leaf remoteSysName {
      type string;
      description
        "remote neighbour system name";
    }
    leaf remoteMgmtAddressSubType {
      type ianaaf:address-family;
      description
        "remote neighbour Management Address Subtype Enumeration";
    }
    leaf remoteMgmtAddress {
      type inet:ip-address;
      description
        "remote neighbour management address";
    }
    leaf remotePortIdSubType {
      type enumeration {
        enum "other" {
          value 0;
          description
            "reserved";
        }
        enum "ifalias" {
          value 1;
          description
            "Interface Alias (IfAlias - IETF RFC 2863) ";
        }
        enum "portcomponent" {
          value 2;
          description
            "Port component (EntPhysicalAlias IETF RFC 4133)";
        }
        enum "macaddress" {
          value 3;
          description
            "MAC address (IEEE Std 802) ";
        }
        enum "networkaddress" {
          value 4;
          description
            "Network Address";
        }
        enum "ifname" {
          value 5;
          description
            "Interface Name (ifName - IETF RFC 2863)";
        }
        enum "agentcircuitid" {
          value 6;
          description
            "Agent Circuit Id (IETF RFC 3046)";
        }
        enum "local" {
          value 7;
          description
            "Locally assigned";
        }
      }
      description
        "remote neighbour Port ID Subtype Enumeration";
    }
    leaf remotePortId {
      type string;
      description
        "remote neighbour port Id";
    }
    leaf remoteChassisIdSubType {
      type enumeration {
        enum "reserved" {
          value 0;
          description
            "reserved";
        }
        enum "chassiscomponent" {
          value 1;
          description
            "Chassis component (EntPhysicalAlias IETF RFC 4133)";
        }
        enum "ifalias" {
          value 2;
          description
            "Interface Alias (IfAlias - IETF RFC 2863) ";
        }
        enum "portcomponent" {
          value 3;
          description
            "Port component (EntPhysicalAlias IETF RFC 4133)";
        }
        enum "macaddress" {
          value 4;
          description
            "MAC address (IEEE Std 802) ";
        }
        enum "networkaddress" {
          value 5;
          description
            "Network Address";
        }
        enum "ifname" {
          value 6;
          description
            "Interface Name (ifName - IETF RFC 2863)";
        }
        enum "local" {
          value 7;
          description
            "Locally assigned";
        }
      }
      description
        "Chassis ID Subtype Enumeration";
    }    
    leaf remoteChassisId {
      type string;
      description
        "remote neighbour Chassis Id";
    }                                         
  }           

  grouping lldp-container {
    container lldp {
      description
        "LLDP configurable and retrievable";
      container global-config {
        description
          "LLDP global configurations";
        leaf adminStatus {
          type enumeration {
            enum "disable" {
              value 0;
              description
                "Disable the LLDP feature per NE";
            }
            enum "enable" {
              value 1;
              description
                "Enable the LLDP feature per NE";
            }
          }
          description
            "LLDP feature Enable/Disable per NE";
          default "enable";
        }
        leaf msgTxInterval {
          type uint16 {
            range "5..32768";
          }
          description
            "LLDP frame Retransmit Interval in seconds";
          default "30";
        }
        leaf msgTxHoldMultiplier {
          type uint8 {
            range "2..10";
          }
          description
            "TTL value for the TLVs transmitter over wire in seconds";
          default "4";
        }
      }
      list port-config {
        description
          "LLDP port configurations";
        key "ifName";
        leaf ifName {
          type leafref {
            path "/org-openroadm-device:org-openroadm-device/org-openroadm-device:interface/org-openroadm-device:name";
          }
          description
            "Ethernet interface name where LLDP runs";
        }
        leaf adminStatus {
          type enumeration {
            enum "disable" {
              value 0;
              description
                "Disables the LLDP frames transmit and receive on specific interface";
            }
            enum "txandrx" {
              value 1;
              description
                "Enable Transmit and Receive LLDP frames on specific interface";
            }
          }
          description
            "LLDP enable per port basis";
          default "txandrx";
        }
      }
      container nbr-list {
        description
          "LLDP Oper data - Neighbour List information";
        config false;
        list if-name {
          key "ifName";
          leaf ifName {
            type string;
            description
              "Ethernet interface name where LLDP runs";
          }                               
          uses nbr-info-grp;
        }                             
      }
    }
  }

  augment "/org-openroadm-device:org-openroadm-device/org-openroadm-device:protocols" {
    when "/org-openroadm-device:org-openroadm-device/org-openroadm-device:info/org-openroadm-device:node-type='rdm'";
    uses lldp-container;
  }

  notification lldp-nbr-info-change {
    description "LLDP: Neighbor Information Changed
            remoteSysName
            remoteSysMgmtAddressSubType
            remoteSysMgmtAddress
            remotePortIdSubType
            remotePortId
            remoteChassisIdSubType
            remoteChassisId
            All of the above attributes are sent in event";
    leaf notification-type {
      type org-openroadm-resource-types:resource-notification-type; 
    }
    leaf resource-type {
      type org-openroadm-resource-types:resource-type-enum;
      description  
        "resource-type for this notification is interface";  
    }
    leaf resource {         
      type string;
      description  
        "resource interface-name";  
    }
    container nbr-info {
      uses nbr-info-grp;
    }
    leaf event-time {
      type yang:date-and-time;
    }
  }                    
}