submodule huawei-l3vpn-type {

    yang-version 1;

    belongs-to huawei-l3vpn {
        prefix l3vpn;
    }

    organization
      "Huawei Technologies Co., Ltd.";

    contact
      "Huawei Industrial Base
     Bantian, Longgang
     Shenzhen 518129
     People's Republic of China
     Website: http://www.huawei.com
     Email: support@huawei.com";

    description
      "This YANG module defines a YANG data model to configure and manage 
     Layer3 VPNs. It augments the huawei-network-instance yang model 
     to add L3VPN specific configuration.";

    revision "2020-03-13" {
      description
        "The YANG descriptions are modified according to new standards.";
      reference
        "Huawei private.";

    }

    revision "2019-04-27" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }


    typedef vpn-target-type {
      type enumeration {
        enum "export-extcommunity" {
          value 2;
          description
            "Specifies the value of the extended community attribute 
           of the route from an outbound interface to the destination
           VPN.";
        }
        enum "import-extcommunity" {
          value 3;
          description
            "Receives routes that carry the specified extended community attribute value.";
        }
      }
      description "The type of vpn target.";
    }

    typedef label-mode-type {
      type enumeration {
        enum "per-instance" {
          value 1;
          description
            "Labels are assigned to VPN instances in 'one label per 
           instance' mode, that is, all routes in a VPN instance 
           are assigned with the same label.";
        }
        enum "per-route" {
          value 0;
          description
            "Labels are assigned to routes in the 'one label per route' mode,
           that is, each route is assigned with one label.";
        }
        enum "per-nexthop" {
          value 2;
          description
            "Labels are assigned to routes in the 'one label per nexthop' 
           mode, that is, all routes with the same nexthop are assigned 
           with the same label.";
        }
      }
      description
        "The mode of l3vpncommonLabel.";
    }

    typedef af-type {
      type enumeration {
        enum "ipv4-unicast" {
          value 1;
          description
            "IPv4 unicast address family.";
        }
        enum "ipv6-unicast" {
          value 5;
          description
            "IPv6 unicast address family.";
        }
      }
      description
        "The type of l3vpncommonL3vpnPrefix.";
    }

    typedef vpn-status-type {
      type enumeration {
        enum "up" {
          value 1;
          description
            "VPN Instance status Up.";
        }
        enum "down" {
          value 2;
          description
            "VPN Instance status Down.";
        }
      }
      description
        "The status of the vpn-instance.";
    }

    typedef lsp-operation-type {
      type enumeration {
        enum "pop" {
          value 0;
          description
            "Label Operation Mode: POP.";
        }
        enum "pop-go" {
          value 1;
          description
            "Label Operation Mode: POPGO.";
        }
      }
      description
        "The label operation mode of the l3vpncommon.";
    }
  }  // submodule huawei-l3vpn-type