module huawei-loopdetect {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-loopdetect";

    prefix loopdetect;

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

    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 "Loopdetect.";

    revision "2020-03-06" {
      description "Change description.";
      reference
        "Huawei private.";

    }

    revision "2019-04-08" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "vlan";

    container loopdetect {
      description "Loop detection.";
      container ldetect-global {
        presence
          "Enable global loop-detect.";
        description
          "Enable/disable global loop-detect.";
        leaf loose-identifier {
          type string {
            length "1..16";
          }
          description
            "Global loop-detect loose identifier.";
        }
      }  // container ldetect-global

      container trigger-detect {
        description
          "Configure trigger detect.";
        container global {
          description
            "Configure global auto loop detection.";
          leaf enable {
            type boolean;
            default "false";
            description
              "Enable/disable global auto loop detection.";
          }

          leaf min-slot-up-time {
            type uint32 {
              range "1..100";
            }
            units "min";
            default "30";
            description "Min slot up time.";
          }

          leaf min-port-up-time {
            type uint32 {
              range "1..600";
            }
            units "min";
            default "10";
            description "Min port up time.";
          }
        }  // container global
      }  // container trigger-detect
    }  // container loopdetect

    augment /ifm:ifm/ifm:interfaces/ifm:interface {
      description "Interface.";
      container loopdetect {
        description
          "Configure loop detection.";
        container mac-withdraw {
          presence
            "create loopdetect-mac-withdraw";
          description
            "Enable/disable loop-detect MAC-withdraw.";
        }  // container mac-withdraw

        container loopback-detect {
          presence "create  loopback-detect";
          description
            "Enable/disable loopback detect.";
          leaf block-time {
            type uint32 {
              range "5..1000";
            }
            units "s";
            default "10";
            description
              "Loopback detect block time.";
          }
        }  // container loopback-detect

        container loop-detect {
          when
            "/loopdetect:loopdetect/loopdetect:ldetect-global";
          presence "create loop-detect";
          description
            "Enable/disable loop detect instance.";
          leaf block-time-type {
            type enumeration {
              enum "perp-block-time" {
                value 1;
                description
                  "Perpetual block time.";
              }
              enum "norm-block-time" {
                value 2;
                description
                  "Normal block time.";
              }
            }
            description
              "Loop detect block time type.";
          }

          leaf block-time-value {
            when
              "../block-time-type='norm-block-time'";
            type uint16 {
              range "1..255";
            }
            units "s";
            mandatory true;
            description "Block time.";
          }

          leaf trigger-down {
            type boolean;
            default "false";
            description
              "Enable/disable loop detect triggerdown.";
          }

          leaf packet-priority {
            type uint32 {
              range "0..7";
            }
            default "6";
            description
              "Loop-detect protocol packet priority.";
          }

          leaf only-alarm {
            type boolean;
            default "false";
            description
              "Enable/disable only send alarm with the interface block.";
          }
        }  // container loop-detect
      }  // container loopdetect
    }
  }  // module huawei-loopdetect