module huawei-ifm-trunk-notification {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-ifm-trunk-notification";

    prefix ifm-trunk-notification;

    import huawei-pub-type {
      prefix pub-type;
    }
    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 "Notification of ifm-trunk.";

    revision "2020-08-12" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "trunk";

    typedef port-status {
      type enumeration {
        enum "up" {
          value 1;
          description
            "The interface is in Up state.";
        }
        enum "down" {
          value 2;
          description
            "The interface is in Down state.";
        }
      }
      description
        "Interface suppression status.";
    }

    notification all-member-down {
      description
        "The last member interface link status changes to down.";
      leaf trunk-index {
        type uint32;
        mandatory true;
        description "Trunk interface index.";
      }

      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the Trunk interface.";
      }
    }  // notification all-member-down

    notification all-member-down-resume {
      description
        "The first member interface link status changes to up.";
      leaf trunk-index {
        type uint32;
        mandatory true;
        description "Trunk interface index.";
      }

      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the Trunk interface.";
      }
    }  // notification all-member-down-resume

    notification all-member-up {
      description
        "All member links of the trunk went Up.";
      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the trunk interface.";
      }
    }  // notification all-member-up

    notification member-link-down {
      description
        "A trunk member interface went Down.";
      leaf port-index {
        type uint32;
        mandatory true;
        description
          "Index of a trunk member interface.";
      }

      leaf member-admin-status {
        type uint32;
        mandatory true;
        description
          "Administration status of a trunk member interface.";
      }

      leaf member-oper-status {
        type uint32;
        mandatory true;
        description
          "Operating status of a trunk member interface.";
      }

      leaf port-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of a trunk member interface.";
      }

      leaf member-phy-status {
        type uint32;
        mandatory true;
        description
          "Physical status of a trunk member interface.";
      }

      leaf trunk-index {
        type uint32;
        mandatory true;
        description
          "Index of the trunk interface to which the member interface belongs.";
      }

      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the trunk interface to which the member interface belongs.";
      }
    }  // notification member-link-down

    notification member-link-up {
      description
        "A trunk member interface went Up.";
      leaf port-index {
        type uint32;
        mandatory true;
        description
          "Index of a trunk member interface.";
      }

      leaf member-admin-status {
        type uint32;
        mandatory true;
        description
          "Administration status of a trunk member interface.";
      }

      leaf member-oper-status {
        type uint32;
        mandatory true;
        description
          "Operating status of a trunk member interface.";
      }

      leaf port-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of a trunk member interface.";
      }

      leaf member-phy-status {
        type uint32;
        mandatory true;
        description
          "Physical status of a trunk member interface.";
      }

      leaf trunk-index {
        type uint32;
        description
          "Index of a trunk interface.";
      }

      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the trunk interface to which the member interface belongs.";
      }
    }  // notification member-link-up

    notification member-number-change {
      description
        "The number of active trunk member interfaces changed.";
      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the trunk interface.";
      }

      leaf port-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the trunk member interface.";
      }

      leaf trunk-mem-number {
        type uint32;
        mandatory true;
        description
          "Number of active trunk member interfaces.";
      }

      leaf reason {
        type string {
          length "0..127";
        }
        mandatory true;
        description "Reason.";
      }
    }  // notification member-number-change

    notification trunk-status-change {
      description
        "The trunk interface status changes.";
      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the trunk interface.";
      }

      leaf trunk-index {
        type uint32;
        mandatory true;
        description "Trunk index.";
      }

      leaf trunk-admin-status {
        type port-status;
        mandatory true;
        description
          "Administration status of trunk interface.";
      }

      leaf trunk-status {
        type port-status;
        mandatory true;
        description
          "Status of trunk interface.";
      }
    }  // notification trunk-status-change

    notification trunk-bandwidth-change {
      description
        "The trunk interface bandwidth changes.";
      leaf trunk-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the trunk interface.";
      }

      leaf old-bandwidth {
        type uint64;
        units "bit/s";
        mandatory true;
        description
          "Old bandwidth of the trunk interface.";
      }

      leaf new-bandwidth {
        type uint64;
        units "bit/s";
        mandatory true;
        description
          "New bandwidth of the trunk interface.";
      }
    }  // notification trunk-bandwidth-change
  }  // module huawei-ifm-trunk-notification