module huawei-ethernet-ext {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-ethernet-ext";

    prefix ethernet-ext;

    import huawei-ifm {
      prefix ifm;
    }
    import huawei-ethernet {
      prefix ethernet;
    }
    import huawei-extension {
      prefix ext;
    }
    import huawei-l2vpn {
      prefix l2vpn;
    }

    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 "Ethernet Interface.";

    revision "2020-01-22" {
      description
        "The modifications in the schema file are synchronized to the YANG file.";
      reference
        "Huawei private.";

    }

    revision "2019-04-23" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "forwarding";

    augment /ifm:ifm/ifm:interfaces/ifm:interface/ethernet:ethernet/ethernet:l3-sub-interface/ethernet:flow-type/ethernet:dot1q-termination/ethernet:dot1q-termination {
      description
        "L3 dot1q-termination sub interface attribute.";
      container termination-mode-enable {
        description
          "Configure the dot1q-termination sub interface as single-mode after binding a vsi service in qualify mode.";
        leaf single-mode-enable {
          type boolean;
          must
            "../single-mode-enable='false' or (/l2vpn:l2vpn/l2vpn:instances/l2vpn:instance/l2vpn:vpls[l2vpn:mac-learn-style='qualify']/l2vpn:acs/l2vpn:ac[l2vpn:interface-name=current()/../../../../../ifm:name])";
          default "false";
          description
            "Enable/disable single-mode configuration.";
        }
      }  // container termination-mode-enable
    }

    augment /ifm:ifm/ifm:interfaces/ifm:interface/ethernet:ethernet/ethernet:l3-sub-interface/ethernet:flow-type/ethernet:qinq-stacking/ethernet:qinq-stacking {
      description
        "L3 qinq-stacking sub interface attribute.";
      container stacking-mode-enable {
        description
          "Configure the qinq-stacking sub interface as single-mode when binding VSI service.";
        leaf single-mode-enable {
          type boolean;
          must
            "../single-mode-enable='false' or ../../ethernet:stacking-vid";
          default "false";
          description
            "Enable/disable single-mode configuration.";
        }
      }  // container stacking-mode-enable
    }
  }  // module huawei-ethernet-ext