module huawei-unicast-forward {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-unicast-forward";

    prefix unicast-forward;

    import huawei-extension {
      prefix ext;
    }
    import ietf-inet-types {
      prefix inet;
    }
    import huawei-ifm {
      prefix ifm;
    }
    import huawei-devm {
      prefix devm;
    }
    import huawei-license {
      prefix lcs;
    }
    import huawei-network-instance {
      prefix ni;
    }
    import huawei-devm-vnf {
      prefix devm-vnf;
    }
    import huawei-said-frame {
      prefix sf;
    }

    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 "Unicast forward.";

    revision "2020-06-11" {
      description "Add ND-MAC linkage node.";
      reference
        "Huawei private.";

    }

    revision "2019-12-21" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "forwarding";

    typedef ttl-mode-type {
      type enumeration {
        enum "pipe" {
          value 0;
          description "Pipe mode.";
        }
        enum "uniform" {
          value 1;
          description "Uniform mode.";
        }
      }
      description "GRE ttl mode type.";
    }

    typedef l3-lcs-service-type {
      type enumeration {
        enum "fib" {
          value 0;
          description "Fib service.";
        }
        enum "l3vpn" {
          value 1;
          description "L3vpn service.";
        }
      }
      description "L3 license service type.";
    }

    typedef global-gre-mode {
      type enumeration {
        enum "through" {
          value 1;
          description "Through mode.";
        }
        enum "loopback" {
          value 0;
          description "Loopback mode.";
        }
      }
      description "Type of global GRE mode.";
    }

    typedef lcs-act-status-type {
      type enumeration {
        enum "unallocated" {
          value 0;
          description
            "The license status is unallocated.";
        }
        enum "allocated" {
          value 1;
          description
            "The license status is allocated.";
        }
        enum "activated" {
          value 2;
          description
            "The license status is activated.";
        }
      }
      description
        "License active status type.";
    }

    typedef mpls-6pe-ttl-mode-type {
      type enumeration {
        enum "pipe" {
          value 0;
          description "Pipe mode.";
        }
        enum "uniform" {
          value 1;
          description "Uniform mode.";
        }
      }
      description "MPLS 6pe ttl-mode type.";
    }

    container unicast-forward {
      description "Unicast forward.";
      container global-uc-attribute {
        description
          "Configure global atrributes.";
        leaf fib-miss {
          type boolean;
          default "false";
          description
            "Enable/disable fib miss.";
        }

        leaf icmp-reply-fast {
          type boolean;
          default "true";
          description
            "Enable/disable ICMP reply fast.";
        }

        leaf nexthop-spt {
          type boolean;
          default "true";
          description
            "Enable/disable single-nexthop BGP fast-refresh.";
        }

        leaf ipv4-force-frag {
          type boolean;
          default "false";
          description
            "Enable/disable IPv4 force fragment.";
        }

        leaf mtu-force-frag {
          type boolean;
          default "true";
          description
            "Enable/disable IPv4 MTU force fragment.";
        }

        leaf trunk-nd-mode {
          type boolean;
          default "false";
          description
            "Enable/disable Trunk ND global mode.";
        }

        leaf trunk-arp-mode {
          type boolean;
          default "false";
          description
            "Enable/disable trunk ARP global mode.";
        }

        leaf mpls-6pe-ttl-mode {
          type mpls-6pe-ttl-mode-type;
          default "pipe";
          description
            "Enable/disable MPLS 6pe ttl-mode.";
        }
      }  // container global-uc-attribute

      container high-re-modes {
        description
          "List of LPUF50A High-RE-Mode.";
        list high-re-mode {
          key "position";
          description
            "Configure LPUF50A High-RE-Mode.";
          leaf position {
            type string {
              length "1..32";
            }
            description "Slot ID.";
          }
        }  // list high-re-mode
      }  // container high-re-modes

      container global-nexthop-spt {
        config false;
        description
          "Statistics of single-next hop BGP route fast update.";
        leaf state {
          type string {
            length "1..127";
          }
          config false;
          description
            "The state statistics for single-next hop BGP route fast update.";
        }
      }  // container global-nexthop-spt

      container na-anti-attack-statistics {
        config false;
        description
          "List of na anti-attack message statistic on a specified board.";
        list na-anti-attack-statistic {
          key "slot-id";
          config false;
          description
            "Statistics of NA anti-attack message for a specified board.";
          leaf slot-id {
            type string {
              length "1..32";
            }
            config false;
            description
              "Slot ID of an interface board. The value range varies according to router hardware. NULL is for board on atn.";
          }

          leaf na-tocpu-count {
            type uint64;
            config false;
            description
              "Na message statistic of sending to cpu.";
          }

          leaf na-drop-count {
            type uint64;
            config false;
            description
              "Na message statistic of dropping.";
          }
        }  // list na-anti-attack-statistic
      }  // container na-anti-attack-statistics

      container vxlan-central-reassemble {
        presence
          "Enable centralized inter-board reassembly on VXLAN tunnels.";
        description
          "Enable/disable centralized inter-board reassembly on VXLAN tunnels.";
      }  // container vxlan-central-reassemble

      container global-gre {
        description
          "Configure global unicast attributes.";
        leaf forward-mode {
          type global-gre-mode;
          default "through";
          description
            "Global GRE forward mode.";
        }
      }  // container global-gre
    }  // container unicast-forward

    rpc reset-na-anti-attack-statistic {
      ext:node-ref "/unicast-forward:unicast-forward/unicast-forward:na-anti-attack-statistics";
      description
        "Reset na anti-attack message statistic information.";
      input {
        leaf slot-id {
          type string {
            length "1..32";
          }
          mandatory true;
          description
            "Slot ID of an interface board. The value range varies according to router hardware. NULL is for board on ATN.";
        }
      }
    }  // rpc reset-na-anti-attack-statistic
  }  // module huawei-unicast-forward