module huawei-gre-fwd {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-gre-fwd";

    prefix gre-fwd;

    import huawei-gre {
      prefix gre;
    }
    import huawei-tunnel-management {
      prefix tnlm;
    }
    import huawei-extension {
      prefix ext;
    }
    import huawei-ifm {
      prefix ifm;
    }

    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
      "Unicast forward GRE configuration.";

    revision "2020-08-13" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "forwarding";

    augment /ifm:ifm/ifm:interfaces/ifm:interface/tnlm:tunnel-protocol/tnlm:type/gre:gre/gre:gre-tunnel {
      description
        "Unicast forward configuration to the GRE module.";
      container unicast-forward {
        description
          "Configure GRE unicast forward.";
        leaf tcp-mss {
          type uint16 {
            range "32..9500";
          }
          units "Byte";
          description
            "Maximum Segment Size of an interface.";
        }
      }  // container unicast-forward
    }
  }  // module huawei-gre-fwd