module huawei-bgp-flow {

    yang-version 1;

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

    prefix bgp-flow;

    import huawei-extension {
      prefix ext;
    }
    import huawei-network-instance {
      prefix ni;
    }
    import huawei-bgp {
      prefix bgp;
    }
    import huawei-routing-policy {
      prefix rtp;
    }
    import huawei-xpl {
      prefix xpl;
    }
    import huawei-bgp-routing-table {
      prefix bgp-rt;
    }
    import huawei-l3vpn {
      prefix l3vpn;
    }
    import ietf-inet-types {
      prefix inet;
    }
    import huawei-pub-type {
      prefix pub-type;
    }

    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
      "Inter-AS routing protocol that exchanges Network Layer Reachability Information (NLRI) with other BGP systems.";

    revision "2021-09-07" {
      description
        "The YANG descriptions are modified according to new standards.";
      reference
        "Huawei private.";

    }

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

    }

    ext:task-name "bgp";

    typedef rpd-cap-type {
      type enumeration {
        enum "receive" {
          value 1;
          description
            "Converts received BGP FlowSpec routes to common IP routes if these BGP FlowSpec routes carry the RPD attribute.";
        }
      }
      description
        "The type of FlowSpec Route Policy Distribute.";
    }

    typedef flow-validation-result-type {
      type enumeration {
        enum "not-enable" {
          value 0;
          description "Not enable.";
        }
        enum "checking" {
          value 1;
          description "Check.";
        }
        enum "accept" {
          value 2;
          description "Accept.";
        }
        enum "discard" {
          value 3;
          description "Discard.";
        }
      }
      description
        "BGP FLOW route validation result.";
    }

    typedef flow-operation-code {
      type enumeration {
        enum "redirect" {
          value 0;
          description "Redirect.";
        }
        enum "copy" {
          value 1;
          description "Copy.";
        }
      }
      description
        "Operation type of redirect.";
    }

    typedef flow-color {
      type string {
        length "1..26";
        pattern
          '(0:(([0-9]\d{0,8})|([1-3]\d{9})|(4[0-1]\d{8})|(42[0-8]\d{7})|(429[0-3]\d{6})|(4294[0-8]\d{5})|(42949[0-5]\d{4})|(429496[0-6]\d{3})|(4294967[0-1]\d{2})|(42949672[0-8]\d{1})|(429496729[0-5]))|-:-)';
      }
      description "Type of color.";
    }
  }  // module huawei-bgp-flow