module huawei-monitor-group {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-monitor-group";

    prefix monitor-group;

    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
      "Global monitor group configuration.";

    revision "2020-03-09" {
      description
        "Fix trigger-up-delay units.";
      reference
        "Huawei private.";

    }

    revision "2019-04-28" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "interface-mgr";

    typedef status-type {
      type enumeration {
        enum "inactive" {
          value 0;
          description
            "The status of monitor group is inactive.";
        }
        enum "active" {
          value 1;
          description
            "The status of monitor group is active.";
        }
      }
      description
        "Status type is like inactive/active.";
    }

    container monitor-group {
      description
        "Global monitor group configuration.";
      container groups {
        description
          "List of monitor groups.";
        list group {
          key "name";
          description
            "Configure this table to operate monitor groups on devices.";
          leaf name {
            type string {
              length "1..31";
            }
            description
              "Specifies the name of an interface monitoring group.";
          }

          leaf trigger-up-delay {
            type uint32 {
              range "0..4294967295";
            }
            units "s";
            default "0";
            description
              "Delay for a track interface to go up.";
          }

          leaf enable-status {
            type status-type;
            default "inactive";
            description
              "Status of monitor group.";
          }

          container binding-ifs {
            description
              "List of monitor group binding interfaces.";
            list binding-if {
              key "if-name";
              max-elements 32;
              description
                "Configure monitor group binding interface.";
              leaf if-name {
                type leafref {
                  path "/ifm:ifm/ifm:interfaces/ifm:interface/ifm:name";
                }
                description
                  "Name of monitor group binding interface.";
              }

              leaf down-weight {
                type uint32 {
                  range "1..1000";
                }
                default "10";
                description
                  "Down weight of monitor group binding interface.";
              }
            }  // list binding-if
          }  // container binding-ifs
        }  // list group
      }  // container groups
    }  // container monitor-group

    augment /ifm:ifm/ifm:interfaces/ifm:interface {
      description
        "A set of track interfaces.";
      container track-monitor-group {
        description
          "Configure a set of track interfaces.";
        leaf name {
          type leafref {
            path "/monitor-group:monitor-group/monitor-group:groups/monitor-group:group/monitor-group:name";
          }
          description
            "The monitoring group was tracked under the interface.";
        }

        leaf down-weight {
          when "../name";
          type uint32 {
            range "1..1000";
          }
          description
            "Trigger down weight of a track interface.";
        }
      }  // container track-monitor-group
    }
  }  // module huawei-monitor-group