module huawei-ifm-notification {

    yang-version 1;

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

    prefix ifm-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.";

    revision "2020-05-30" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "interface-mgr";

    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.";
    }

    typedef suppress-status {
      type enumeration {
        enum "unsuppress" {
          value 0;
          description
            "The interface is not suppressed.";
        }
        enum "suppress" {
          value 1;
          description
            "The interface is suppressed.";
        }
      }
      description
        "Interface suppression status.";
    }

    notification error-down {
      description "Error-down occurred.";
      leaf index {
        type uint32;
        mandatory true;
        description "Index of an interface.";
      }

      leaf name {
        type pub-type:if-name;
        mandatory true;
        description "Interface name.";
      }

      leaf cause {
        type string {
          length "1..50";
        }
        mandatory true;
        description
          "Cause of the errordown event.";
      }

      leaf recovery-type {
        type string {
          length "1..20";
        }
        mandatory true;
        description
          "Specifies the alarm clearance type. The value is auto recovery or Null. The alarm clearance type triggered by restarting an interface is auto recovery.";
      }
    }  // notification error-down

    notification error-down-recovery {
      description "Error-down recovered.";
      leaf index {
        type uint32;
        mandatory true;
        description "Index of an interface.";
      }

      leaf name {
        type pub-type:if-name;
        mandatory true;
        description "Interface name.";
      }

      leaf cause {
        type string {
          length "1..50";
        }
        mandatory true;
        description
          "Cause of the errordown event.";
      }

      leaf recovery-type {
        type string {
          length "1..20";
        }
        mandatory true;
        description
          "Specifies the alarm clearance type. The value is auto recovery or Null. The alarm clearance type triggered by restarting an interface is auto recovery.";
      }
    }  // notification error-down-recovery

    notification if-damp-suppress {
      description
        "The state of interface changed from unsuppress to suppress.";
      leaf interface-name {
        type pub-type:if-name;
        description "Interface name.";
      }

      leaf suppress-state {
        type suppress-status;
        description
          "Interface suppression status: - 0: The interface is not suppressed. - 1: The interface is suppressed.";
      }
    }  // notification if-damp-suppress

    notification if-damp-resume {
      description
        "The state of interface changed from suppress to unsuppress.";
      leaf interface-name {
        type pub-type:if-name;
        description "Interface name.";
      }

      leaf suppress-state {
        type suppress-status;
        description
          "Interface suppression status: - 0: The interface is not suppressed. - 1: The interface is suppressed.";
      }
    }  // notification if-damp-resume

    notification physical-admin-if-down {
      description
        "The physical manage interface physical status changes to down.";
      leaf index {
        type uint32;
        mandatory true;
        description "Interface index.";
      }

      leaf name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the physical management interface.";
      }

      leaf oper-status {
        type port-status;
        mandatory true;
        description
          "Status of the physical management interface.";
      }
    }  // notification physical-admin-if-down

    notification physical-admin-if-up {
      description
        "The physical manage interface physical status changes to up.";
      leaf index {
        type uint32;
        mandatory true;
        description "Interface index.";
      }

      leaf name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the physical management interface.";
      }

      leaf oper-status {
        type port-status;
        mandatory true;
        description
          "Status of the physical management interface.";
      }
    }  // notification physical-admin-if-up

    notification ipv6-if-state-change {
      description "The IPv6 status changes.";
      leaf index {
        type uint32;
        mandatory true;
        description "Interface index.";
      }

      leaf name {
        type pub-type:if-name;
        mandatory true;
        description
          "Indicates the interface name.";
      }

      leaf oper-status {
        type port-status;
        mandatory true;
        description
          "Indicates the current status of an interface.";
      }

      leaf admin-status {
        type port-status;
        mandatory true;
        description
          "Indicates the administrative status of an interface.";
      }

      leaf main-if-name {
        type pub-type:if-name;
        mandatory true;
        description "Main interface name.";
      }

      leaf reason-code {
        type uint32;
        mandatory true;
        description
          "Cause for trap generation.";
      }
    }  // notification ipv6-if-state-change

    notification link-down {
      description
        "The interface status changes.";
      leaf index {
        type uint32;
        mandatory true;
        description "Interface index.";
      }

      leaf admin-status {
        type port-status;
        mandatory true;
        description
          "Configured interface status.";
      }

      leaf oper-status {
        type port-status;
        mandatory true;
        description
          "Current interface status.";
      }

      leaf name {
        type pub-type:if-name;
        mandatory true;
        description "Interface name.";
      }

      leaf reason-code {
        type uint32;
        mandatory true;
        description
          "Cause for trap generation.";
      }

      leaf main-if-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the main interface.";
      }
    }  // notification link-down

    notification link-up {
      description
        "The interface status changes.";
      leaf index {
        type uint32;
        mandatory true;
        description "Interface index.";
      }

      leaf admin-status {
        type port-status;
        mandatory true;
        description
          "Configured interface status.";
      }

      leaf oper-status {
        type port-status;
        mandatory true;
        description
          "Current interface status.";
      }

      leaf name {
        type pub-type:if-name;
        mandatory true;
        description "Interface name.";
      }

      leaf reason-code {
        type uint32;
        mandatory true;
        description
          "Cause for trap generation.";
      }

      leaf main-if-name {
        type pub-type:if-name;
        mandatory true;
        description
          "Name of the main interface.";
      }
    }  // notification link-up
  }  // module huawei-ifm-notification