module huawei-bier-fwd {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-bier-fwd";

    prefix bier-fwd;

    import huawei-bier {
      prefix bier;
    }
    import huawei-extension {
      prefix ext;
    }
    import huawei-devm {
      prefix devm;
    }

    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 "Bier forward.";

    revision "2020-02-13" {
      description "Init revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "bier";

    container bier-fwd {
      description
        "Global configuration of bier-fwd.";
      container select-boards {
        description
          "Configure boards selected for bier.";
        leaf-list slot {
          type leafref {
            path "/devm:devm/devm:lpu-boards/devm:lpu-board/devm:position";
          }
          max-elements 20;
          description "Configure slot ID.";
        }
      }  // container select-boards
    }  // container bier-fwd

    augment /bier:bier {
      description
        "Configure global attributes to the BIER.";
      container forward {
        description
          "Configure global attributes to the BIER.";
        container reserve-interface-enhancement {
          description
            "Configure reserve-interface enhancement.";
          leaf enable {
            type boolean;
            default "false";
            description
              "Enable/disable reserve-interface enhancement.";
          }
        }  // container reserve-interface-enhancement
      }  // container forward
    }

    augment /bier:bier/bier:sub-domains/bier:sub-domain {
      description
        "Configure pipe mode ttl value.";
      container pipe-mode-ttl {
        description
          "Configure pipe mode ttl value.";
        leaf ttl-value {
          type uint8 {
            range "1..255";
          }
          default "255";
          description
            "Bier pipe mode ttl value.";
        }
      }  // container pipe-mode-ttl

      container load-balance-enhance-factor {
        when
          "../bier:address-family = 'ipv6-unicast'";
        description
          "Configure load-balance enhance factor.";
        leaf factor-value {
          type uint8 {
            range "1..64";
          }
          must
            "(../bier-fwd:factor-value * ../../bier:load-balance-num) <= 64";
          description
            "Configure load-balance enhance factor.";
        }
      }  // container load-balance-enhance-factor
    }
  }  // module huawei-bier-fwd