module huawei-bgp-notification {

    yang-version 1;

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

    prefix bgp-notification;

    import ietf-inet-types {
      prefix inet;
    }
    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 bgp-notification.";

    revision "2021-03-27" {
      description
        "A field was added to BGP peer state change alarms.";
      reference
        "Huawei private.";

    }

    revision "2020-05-16" {
      description
        "Modify alarm's name for peer route base on address family.";
      reference
        "Huawei private.";

    }

    revision "2020-04-17" {
      description
        "Add alarm for peer route base on address family.";
      reference
        "Huawei private.";

    }

    revision "2019-03-22" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "bgp";

    typedef addr-family-type {
      type enumeration {
        enum "unspecified" {
          value 0;
          description "Not specified value.";
        }
        enum "ipv4" {
          value 1;
          description "IPv4 address family.";
        }
        enum "ipv6" {
          value 2;
          description "IPv6 address family.";
        }
        enum "l2vpnad" {
          value 25;
          description
            "L2VPNAD address family.";
        }
        enum "l2vpn" {
          value 196;
          description
            "L2VPN address family.";
        }
        enum "ls" {
          value 16388;
          description
            "Link-state address family.";
        }
        enum "rpd" {
          value 36879;
          description "RPD address family.";
        }
      }
      description
        "The type of address family.";
    }

    typedef sub-addr-family-type {
      type enumeration {
        enum "unspecified" {
          value 0;
          description "Not specified value.";
        }
        enum "unicast" {
          value 1;
          description
            "Unicast subsequent address family.";
        }
        enum "multicast" {
          value 2;
          description
            "Multicast subsequent address family.";
        }
        enum "unicast-multicast" {
          value 3;
          description
            "Unicast & Multicast subsequent address family.";
        }
        enum "mpls" {
          value 4;
          description
            "MPLS subsequent address family.";
        }
        enum "mvpn" {
          value 5;
          description
            "MVPN subsequent address family.";
        }
        enum "l2vpnad" {
          value 65;
          description
            "L2VPNAD subsequent address family.";
        }
        enum "mdt" {
          value 66;
          description
            "Link-state subsequent address family.";
        }
        enum "evpn" {
          value 70;
          description
            "EVPN subsequent address family.";
        }
        enum "ls" {
          value 71;
          description
            "Link-state subsequent address family.";
        }
        enum "srpolicy" {
          value 73;
          description
            "BGP SRPOLICY subsequent address family.";
        }
        enum "sd-wan" {
          value 74;
          description
            "SD-WAN subsequent address family.";
        }
        enum "vpnv4" {
          value 128;
          description
            "Vpnv4 subsequent address family.";
        }
        enum "vpnv4-multicast" {
          value 129;
          description
            "VPNV4 Multicast subsequent address family.";
        }
        enum "vt" {
          value 132;
          description
            "VPN ORF subsequent address family.";
        }
        enum "flowv4" {
          value 133;
          description
            "Flowv4 subsequent address family.";
        }
        enum "flow-vpn" {
          value 134;
          description
            "FLOWVPN subsequent address family.";
        }
        enum "rpd" {
          value 179;
          description
            "RPD subsequent address family.";
        }
      }
      description
        "The type of subsequent address family.";
    }

    typedef ip-address-type {
      type enumeration {
        enum "unknown" {
          value 0;
          description
            "Unknown IP address type.";
        }
        enum "ipv4" {
          value 1;
          description "IPv4 address type.";
        }
        enum "ipv6" {
          value 2;
          description "IPv6 address type.";
        }
      }
      description "The type of IP address.";
    }

    typedef notification-peer-state-type {
      type enumeration {
        enum "idle" {
          value 1;
          description "Idle state.";
        }
        enum "connect" {
          value 2;
          description "Connecting state.";
        }
        enum "active" {
          value 3;
          description "Active state.";
        }
        enum "opensent" {
          value 4;
          description "OpenSent state.";
        }
        enum "openconfirm" {
          value 5;
          description "OpenConfirm state.";
        }
        enum "established" {
          value 6;
          description "Established state.";
        }
        enum "idle-admin" {
          value 7;
          description "Idle (Admin) state.";
        }
        enum "idle-ovlmt" {
          value 8;
          description "Idle (Ovlmt) state.";
        }
        enum "no-neg" {
          value 9;
          description "No neg state.";
        }
      }
      description "The state of peer.";
    }

    notification established {
      description
        "The BGP FSM enters the Established state.";
      leaf peer-ipv4-addr {
        type inet:ipv4-address-no-zone;
        description "Peer address.";
      }

      leaf peer-last-error {
        type string {
          length "0..100";
        }
        description
          "Value of the Error Code field in the Notification packet generated when the peer relationship is interrupted last time. The value is expressed in the format of [ErrorCode][ErrorSubCode]. [ErrorCode] refers to the error code and [ErrorSubCode] refers to the error subcode. Take the integer 35 as an example, figure 3 is the error code and figure 5 is the error subcode. For detailed information about the error code, refer to BGP Error Code. If the value is 0, it indicates that no error occurs.";
      }

      leaf peer-state {
        type uint32;
        description
          "Status of the BGP peer relationship.";
      }

      leaf instance-id {
        type string {
          length "1..31";
        }
        description "Instance ID.";
      }

      leaf addr-family-afi {
        type uint32;
        description "Address family.";
      }

      leaf addr-family-safi {
        type uint32;
        description "Sub address family.";
      }

      leaf peer-addr-type {
        type uint32;
        description "Peer address type.";
      }

      leaf peer-ipv4-ipv6-addr {
        type inet:ip-address-no-zone;
        description "Peer address.";
      }

      leaf reason {
        type string {
          length "0..100";
        }
        description
          "Reason why the peer relationship is interrupted. - Configuration lead peer down: The configuration causes the peer disconnection. - Receive notification: Notification packets are received. - Receive error packet: Error packets are received. - Hold timer expire: The Hold timer expires. - Remote peer not reachable: The remote peer is unreachable. - Direct connect-interface down: The directly connected interface is Down. - Route limit: The number of routes exceeds the upper limit.";
      }

      leaf local-if-index {
        type uint32;
        description "Local interface index.";
      }

      leaf local-if-name {
        type string {
          length "1..63";
        }
        description "Local interface name.";
      }

      leaf description {
        type string {
          length "0..255";
        }
        description "Peer description.";
      }
    }  // notification established

    notification backward {
      description
        "The BGP FSM moves from a higher numbered state to a lower numbered state.";
      leaf peer-ipv4-addr {
        type inet:ipv4-address-no-zone;
        description "Peer address.";
      }

      leaf peer-last-error {
        type string {
          length "0..100";
        }
        description
          "Value of the Error Code field in the Notification packet generated when the peer relationship is interrupted last time. The value is expressed in the format of [ErrorCode][ErrorSubCode]. [ErrorCode] refers to the error code and [ErrorSubCode] refers to the error subcode. Take the integer 35 as an example, figure 3 is the error code and figure 5 is the error subcode. For detailed information about the error code, refer to BGP Error Code. If the value is 0, it indicates that no error occurs.";
      }

      leaf peer-state {
        type uint32;
        description
          "Status of the BGP peer relationship.";
      }

      leaf instance-id {
        type string {
          length "1..31";
        }
        description "Instance ID.";
      }

      leaf addr-family-afi {
        type uint32;
        description "Address family.";
      }

      leaf addr-family-safi {
        type uint32;
        description "Sub address family.";
      }

      leaf peer-addr-type {
        type uint32;
        description "Peer address type.";
      }

      leaf peer-ipv4-ipv6-addr {
        type inet:ip-address-no-zone;
        description "Peer address.";
      }

      leaf reason {
        type string {
          length "0..100";
        }
        description
          "Reason why the peer relationship is interrupted. - Configuration lead peer down: The configuration causes the peer disconnection. - Receive notification: Notification packets are received. - Receive error packet: Error packets are received. - Hold timer expire: The Hold timer expires. - Remote peer not reachable: The remote peer is unreachable. - Direct connect-interface down: The directly connected interface is Down. - Route limit: The number of routes exceeds the upper limit.";
      }

      leaf local-if-index {
        type uint32;
        description "Local interface index.";
      }

      leaf local-if-name {
        type string {
          length "1..63";
        }
        description "Local interface name.";
      }

      leaf description {
        type string {
          length "0..255";
        }
        description "Peer description.";
      }
    }  // notification backward

    notification peer-established {
      description
        "The BGP FSM enters the Established state.";
      leaf instance-id {
        type uint32;
        description "Instance ID.";
      }

      leaf addr-family-afi {
        type addr-family-type;
        description "Address family.";
      }

      leaf addr-family-safi {
        type sub-addr-family-type;
        description "Sub address family.";
      }

      leaf peer-addr-type {
        type ip-address-type;
        description "Peer address type.";
      }

      leaf peer-ipv4-ipv6-addr {
        type inet:ip-address-no-zone;
        description "Peer address.";
      }

      leaf peer-last-error {
        type string {
          length "0..100";
        }
        description
          "Value of the Error Code field in the Notification packet generated when the peer relationship is interrupted last time. The value is expressed in the format of [ErrorCode][ErrorSubCode]. [ErrorCode] refers to the error code and [ErrorSubCode] refers to the error subcode. Take the integer 35 as an example, figure 3 is the error code and figure 5 is the error subcode. For detailed information about the error code, refer to BGP Error Code. If the value is 0, it indicates that no error occurs.";
      }

      leaf peer-state {
        type notification-peer-state-type;
        description
          "Status of the BGP peer relationship.";
      }

      leaf reason {
        type string {
          length "0..100";
        }
        description
          "Reason why the peer relationship is interrupted. - Configuration lead peer down: The configuration causes the peer disconnection. - Receive notification: Notification packets are received. - Receive error packet: Error packets are received. - Hold timer expire: The Hold timer expires. - Remote peer not reachable: The remote peer is unreachable. - Direct connect-interface down: The directly connected interface is Down. - Route limit: The number of routes exceeds the upper limit.";
      }

      leaf local-if-index {
        type uint32;
        description "Local interface index.";
      }

      leaf local-if-name {
        type string {
          length "1..63";
        }
        description "Local interface name.";
      }

      leaf description {
        type string {
          length "0..255";
        }
        description "Peer description.";
      }
    }  // notification peer-established

    notification peer-backward {
      description
        "The BGP FSM moves from a higher numbered state to a lower numbered state.";
      leaf instance-id {
        type uint32;
        description "Instance ID.";
      }

      leaf addr-family-afi {
        type addr-family-type;
        description "Address family.";
      }

      leaf addr-family-safi {
        type sub-addr-family-type;
        description "Sub address family.";
      }

      leaf peer-addr-type {
        type ip-address-type;
        description "Peer address type.";
      }

      leaf peer-ipv4-ipv6-addr {
        type inet:ip-address-no-zone;
        description "Peer address.";
      }

      leaf peer-last-error {
        type string {
          length "0..100";
        }
        description
          "Value of the Error Code field in the Notification packet generated when the peer relationship is interrupted last time. The value is expressed in the format of [ErrorCode][ErrorSubCode]. [ErrorCode] refers to the error code and [ErrorSubCode] refers to the error subcode. Take the integer 35 as an example, figure 3 is the error code and figure 5 is the error subcode. For detailed information about the error code, refer to BGP Error Code. If the value is 0, it indicates that no error occurs.";
      }

      leaf peer-state {
        type notification-peer-state-type;
        description
          "Status of the BGP peer relationship.";
      }

      leaf reason {
        type string {
          length "0..100";
        }
        description
          "Reason why the peer relationship is interrupted. - Configuration lead peer down: The configuration causes the peer disconnection. - Receive notification: Notification packets are received. - Receive error packet: Error packets are received. - Hold timer expire: The Hold timer expires. - Remote peer not reachable: The remote peer is unreachable. - Direct connect-interface down: The directly connected interface is Down. - Route limit: The number of routes exceeds the upper limit.";
      }

      leaf local-if-index {
        type uint32;
        description "Local interface index.";
      }

      leaf local-if-name {
        type string {
          length "1..63";
        }
        description "Local interface name.";
      }

      leaf description {
        type string {
          length "0..255";
        }
        description "Peer description.";
      }
    }  // notification peer-backward

    notification bgp-peer-af-route-exceed {
      description
        "The number of routes received from peers in a BGP address family reached the maximum value.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-route-exceed

    notification bgp-peer-af-route-exceed-clear {
      description
        "The number of routes received from peers in a BGP address family fell below the maximum value.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-route-exceed-clear

    notification bgp-peer-af-route-threshold-exceed {
      description
        "The number of routes received from peers in a BGP address family reached the alarm threshold.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf route-limit-threshold {
        type uint32;
        description "Alarm threshold.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-route-threshold-exceed

    notification bgp-peer-af-route-threshold-exceed-clear {
      description
        "The number of routes received from peers in a BGP address family fell below the alarm threshold.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf route-limit-threshold {
        type uint32;
        description "Alarm threshold.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-route-threshold-exceed-clear

    notification bgp-peer-af-per-route-threshold-exceed {
      description
        "The number of specified routes received from peers in a BGP address family reached the alarm threshold.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-type {
        type string {
          length "1..63";
        }
        description "Route type.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf route-limit-threshold {
        type uint32;
        description "Alarm threshold.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-per-route-threshold-exceed

    notification bgp-peer-af-per-route-threshold-exceed-clear {
      description
        "The number of specified routes received from peers in a BGP address family fell below the alarm threshold.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-type {
        type string {
          length "1..63";
        }
        description "Route type.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf route-limit-threshold {
        type uint32;
        description "Alarm threshold.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-per-route-threshold-exceed-clear

    notification bgp-peer-af-per-route-exceed {
      description
        "The number of specified routes received from peers in a BGP address family reached the maximum value.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-type {
        type string {
          length "1..63";
        }
        description "Route type.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-per-route-exceed

    notification bgp-peer-af-per-route-exceed-clear {
      description
        "The number of specified routes received from peers in a BGP address family fell below the maximum value.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf route-type {
        type string {
          length "1..63";
        }
        description "Route type.";
      }

      leaf route-limit-num {
        type uint32;
        description
          "The maximum route number.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }
    }  // notification bgp-peer-af-per-route-exceed-clear

    notification bgp-discard-received-route {
      description
        "BGP discards the received routes.";
      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }

      leaf addr-family-afi {
        type addr-family-type;
        description "Address family.";
      }

      leaf addr-family-safi {
        type sub-addr-family-type;
        description "Sub-address family.";
      }

      leaf discard-reason {
        type string {
          length "1..63";
        }
        description "Discard reason.";
      }
    }  // notification bgp-discard-received-route

    notification bgp-discard-received-route-clear {
      description
        "BGP resume to process received routes.";
      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }

      leaf addr-family-afi {
        type addr-family-type;
        description "Address family.";
      }

      leaf addr-family-safi {
        type sub-addr-family-type;
        description "Sub-address family.";
      }

      leaf discard-reason {
        type string {
          length "1..63";
        }
        description "Discard reason.";
      }
    }  // notification bgp-discard-received-route-clear

    notification bgp-sid-label-conflict {
      description
        "The prefix-sid label conflict is detected.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf prefix-sid-label {
        type uint32;
        description
          "The prefix-sid label of the BGP route.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }

      leaf vpn-name {
        type string {
          length "1..31";
        }
        description 'VPN instance name.';
      }

      leaf prefix {
        type string {
          length "1..63";
        }
        description
          "The prefix of the BGP route.";
      }
    }  // notification bgp-sid-label-conflict

    notification bgp-sid-label-conflict-clear {
      description
        "The prefix-sid label conflict is resolved.";
      leaf address-family {
        type string {
          length "1..63";
        }
        description "Address family.";
      }

      leaf prefix-sid-label {
        type uint32;
        description
          "The prefix-sid label of the BGP route.";
      }

      leaf instance-name {
        type string {
          length "1..63";
        }
        description
          'BGP instance name: The value "-" indicates the default BGP instance, whereas the other values indicate BGP multi-instances.';
      }

      leaf vpn-name {
        type string {
          length "1..31";
        }
        description 'VPN instance name.';
      }

      leaf prefix {
        type string {
          length "1..63";
        }
        description
          "The prefix of the BGP route.";
      }
    }  // notification bgp-sid-label-conflict-clear
  }  // module huawei-bgp-notification