module ietf-te-service-mapping {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:ietf-te-service-mapping";

    prefix tm;

    import ietf-l3vpn-svc {
      prefix l3;
    }
    import ietf-l2vpn-svc {
      prefix l2;
    }
    import ietf-l1csm {
      prefix l1;
    }
    import ietf-te {
      prefix te;
    }
    import ietf-actn-vn {
      prefix vn;
    }

    organization
      "IETF Traffic Engineering Architecture and Signaling (TEAS)
        Working Group";

    contact
      "Editor: Young Lee <leeyoung@huawei.com>
                 Dhruv Dhody <dhruv.ietf@gmail.com>";

    description
      "This module contains a YANG module for the mapping of
        service (e.g. L3VPN) to the TE tunnels or ACTN VN.";

    revision "2017-10-27" {
      description "initial version.";
      reference
        "TBD";

    }


    identity service-type {
      base 
      description
        "Base identity from which specific service types are
            derived.";
    }

    identity l3vpn-service {
      base service-type;
      description "L3VPN service type.";
    }

    identity l2vpn-service {
      base service-type;
      description "L2VPN service type.";
    }

    identity l1vpn-service {
      base service-type;
      description
        "L1VPN connectivity service type.";
    }

    typedef map-type {
      type enumeration {
        enum "new" {
          value 0;
          description
            "The new VN/tunnels are binded to the service";
        }
        enum "select" {
          value 1;
          description
            "The VPN service selects an existing tunnel with no
modification";
        }
        enum "modify" {
          value 2;
          description
            "The VPN service selects an existing tunnel and allows
to modify the properties of the tunnel (e.g., b/w) ";
        }
      }
      description "The map-type";
    }

    grouping service-ref {
      description
        "The reference to the service.";
      choice service {
        description "The service";
        leaf l3vpn-ref {
          type leafref {
            path
              "/l3:l3vpn-svc/l3:vpn-services/"
                + "l3:vpn-service/l3:vpn-id";
          }
          description
            "The reference to L3VPN Service Yang Model";
        }
        leaf l2vpn-ref {
          type leafref {
            path
              "/l2:l2vpn-svc/l2:vpn-services/"
                + "l2:vpn-svc/l2:vpn-id";
          }
          description
            "The reference to L2VPN Service Yang Model";
        }
        leaf l1vpn-ref {
          type leafref {
            path
              "/l1:l1cs/l1:service/"
                + "l1:service-list/l1:subscriber-l1vc-id";
          }
          description
            "The reference to L1VPN Service Yang Model";
        }
      }  // choice service
    }  // grouping service-ref

    grouping site-ref {
      description
        "The reference to the site.";
      choice service {
        description "The service choice";
        leaf l3vpn-ref {
          type leafref {
            path
              "/l3:l3vpn-svc/l3:sites/l3:site/"
                + "l3:site-id";
          }
          description
            "The reference to L3VPN Service Yang Model";
        }
        leaf l2vpn-ref {
          type leafref {
            path
              "/l2:l2vpn-svc/l2:sites/l2:site/"
                + "l2:site-id";
          }
          description
            "The reference to L2VPN Service Yang Model";
        }
        leaf l1vpn-ref {
          type leafref {
            path
              "/l1:l1cs/l1:access/l1:uni-list/"
                + "l1:UNI-ID";
          }
          description
            "The reference to L1VPN Connectivity Service Yang
Model";
        }
      }  // choice service
    }  // grouping site-ref

    grouping te-ref {
      description "The reference to TE.";
      choice te {
        description "The TE";
        leaf actn-vn-ref {
          type leafref {
            path
              "/vn:actn/vn:vn/vn:vn-list/vn:vn-id";
          }
          description
            "The reference to ACTN VN";
        }
        leaf-list te-tunnel-list {
          type te:tunnel-ref;
          description
            "Reference to TE Tunnels";
        }
      }  // choice te
    }  // grouping te-ref

    grouping te-endpoint-ref {
      description
        "The reference to TE endpoints.";
      choice te {
        description "The TE";
        leaf actn-vn-ref {
          type leafref {
            path
              "/vn:actn/vn:ap/vn:access-point-list"
                + "/vn:access-point-id";
          }
          description
            "The reference to ACTN VN";
        }

        case te {
        }  // case te
      }  // choice te
    }  // grouping te-endpoint-ref

    grouping service-mapping {
      description
        "Mapping between Services and TE";
      container service-mapping {
        description
          "Mapping between Services and TE";
        list mapping-list {
          key "map-id";
          description
            "Mapping identified via a map-id";
          leaf map-id {
            type uint32;
            description
              "a unique mapping identifier";
          }

          leaf map-type {
            type map-type;
            description
              "Tunnel Bind or Tunnel Selection";
          }

          uses service-ref;

          uses te-ref;
        }  // list mapping-list
      }  // container service-mapping
    }  // grouping service-mapping

    grouping site-mapping {
      description
        "Mapping between VPN access site and TE
               endpoints or AP";
      container site-mapping {
        description
          "Mapping between VPN access site and TE
                   endpoints or AP";
        list mapping-list {
          key "map-id";
          description
            "Mapping identified via a map-id";
          leaf map-id {
            type uint32;
            description
              "a unique mapping identifier";
          }

          uses site-ref;

          uses te-endpoint-ref;
        }  // list mapping-list
      }  // container site-mapping
    }  // grouping site-mapping

    container te-service-mapping {
      description
        "Mapping between Services and TE";
      uses service-mapping;

      uses site-mapping;
    }  // container te-service-mapping
  }  // module ietf-te-service-mapping