module huawei-l2vpn-vll-ext {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-l2vpn-vll-ext";

    prefix l2vpn-vll-ext;

    import huawei-qos {
      prefix qos;
    }
    import huawei-ifm {
      prefix ifm;
    }
    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 "L2VPN vll ext.";

    revision "2020-03-06" {
      description "Add pipe type.";
      reference
        "Huawei private.";

    }

    revision "2020-01-21" {
      description "Add vll-pw-loop-check.";
      reference
        "Huawei private.";

    }

    revision "2019-10-17" {
      description
        "Modify typedef defination.";
      reference
        "Huawei private.";

    }

    revision "2019-04-23" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "forwarding";

    typedef l2vpn-pipe-mode {
      type enumeration {
        enum "pipe" {
          value 1;
          description
            "Specify the L2VPN pipe mode as pipe.";
        }
        enum "shortPipe" {
          value 2;
          description
            "Specify the L2VPN pipe mode as short pipe.";
        }
        enum "uniform" {
          value 3;
          description
            "Specify the L2VPN pipe mode as uniform.";
        }
      }
      description "L2vpn pipe mode.";
    }

    typedef l2vpn-service-class {
      type enumeration {
        enum "be" {
          value 0;
          description
            "Specify the L2VPN CoS as BE.";
        }
        enum "af1" {
          value 1;
          description
            "Specify the L2VPN CoS as AF1.";
        }
        enum "af2" {
          value 2;
          description
            "Specify the L2VPN CoS as AF2.";
        }
        enum "af3" {
          value 3;
          description
            "Specify the L2VPN CoS as AF3.";
        }
        enum "af4" {
          value 4;
          description
            "Specify the L2VPN CoS as AF4.";
        }
        enum "ef" {
          value 5;
          description
            "Specify the L2VPN CoS as EF.";
        }
        enum "cs6" {
          value 6;
          description
            "Specify the L2VPN CoS as CS6.";
        }
        enum "cs7" {
          value 7;
          description
            "Specify the L2VPN CoS as CS7.";
        }
      }
      description "Description of CoS.";
    }

    typedef l2vpn-color {
      type enumeration {
        enum "green" {
          value 0;
          description
            "Specify the packet color as green.";
        }
        enum "yellow" {
          value 1;
          description
            "Specify the packet color as yellow.";
        }
        enum "red" {
          value 2;
          description
            "Specify the packet color as red.";
        }
      }
      description
        "Description of packet color.";
    }

    typedef l2vpn-trust-type {
      type enumeration {
        enum "outpri" {
          value 0;
          description
            "Specify the trust type as OUTTER-VLAN-8021P.";
        }
        enum "inpri" {
          value 1;
          description
            "Specify the trust type as INNER-VLAN-8021P.";
        }
        enum "ipdscp" {
          value 2;
          description
            "Specify the trust type as IP-DSCP.";
        }
      }
      description
        "Description of trust type.";
    }

    augment /ifm:ifm/ifm:interfaces/ifm:interface/qos:qos {
      description "Interface QOS.";
      container qos-vll-pipe {
        description
          "Configure the diffserv mode for L2VPN.";
        leaf split-mode {
          type boolean;
          must
            "((../split-mode='false' and not(../ingress-pipe-mode) and not(../egress-pipe-mode) and ../pipe-mode) or (../split-mode='true' and not(../pipe-mode) and ../ingress-pipe-mode and ../egress-pipe-mode and not(../ingress-pipe-mode='uniform' and ../egress-pipe-mode='uniform')))";
          default "false";
          description
            "Enable/disable split mode.";
        }

        leaf pipe-mode {
          when "../split-mode='false'";
          type l2vpn-pipe-mode;
          must
            "(../split-mode='false') and ((../pipe-mode='pipe' and (../service-class) and (../color)) or (../pipe-mode='shortPipe' and (../service-class) and (../color) and (../domain-name)) or (../pipe-mode='uniform'))";
          default "uniform";
          description
            "Specify the pipe mode.";
        }

        leaf ingress-pipe-mode {
          when "../split-mode='true'";
          type l2vpn-pipe-mode;
          must
            "((../split-mode='true') and (((../service-class) and (../color) and (../ingress-pipe-mode='shortPipe' or ../ingress-pipe-mode='pipe')) or (../ingress-pipe-mode='uniform' and ../egress-pipe-mode!='uniform')))";
          default "uniform";
          description
            "Specify the ingress pipe mode.";
        }

        leaf egress-pipe-mode {
          when "../split-mode='true'";
          type l2vpn-pipe-mode;
          must
            "((../split-mode='true') and (((../domain-name) and (../trust-type) and (../egress-pipe-mode='shortPipe')) or (../egress-pipe-mode='pipe') or (../egress-pipe-mode='uniform' and ../ingress-pipe-mode!='uniform')))";
          default "uniform";
          description
            "Specify the egress pipe mode.";
        }

        leaf service-class {
          when
            "(../pipe-mode='pipe' or ../pipe-mode='shortPipe' or ../ingress-pipe-mode='pipe' or ../ingress-pipe-mode='shortPipe')";
          type l2vpn-service-class;
          must
            "(../pipe-mode='pipe' or ../pipe-mode='shortPipe' or ../ingress-pipe-mode='pipe' or ../ingress-pipe-mode='shortPipe')";
          default "be";
          description "Specify the CoS.";
        }

        leaf color {
          when
            "(../pipe-mode='pipe' or ../pipe-mode='shortPipe'  or ../ingress-pipe-mode='pipe' or ../ingress-pipe-mode='shortPipe')";
          type l2vpn-color;
          must
            "(../pipe-mode='pipe' or ../pipe-mode='shortPipe' or ../ingress-pipe-mode='pipe' or ../ingress-pipe-mode='shortPipe')";
          default "green";
          description
            "Specify the color of packets.";
        }

        leaf domain-name {
          when
            "(../pipe-mode='shortPipe'  or ../egress-pipe-mode='shortPipe')";
          type leafref {
            path "/qos:qos/qos:classifier-template/qos:diffserv-domains/qos:diffserv-domain/qos:name";
          }
          must
            "(../pipe-mode='shortPipe' or ../egress-pipe-mode='shortPipe')";
          default "default";
          description "DS domain name.";
        }

        leaf trust-type {
          when
            "../egress-pipe-mode='shortPipe'";
          type l2vpn-trust-type;
          must
            "../egress-pipe-mode='shortPipe'";
          default "outpri";
          description
            "Specify the trust type.";
        }
      }  // container qos-vll-pipe
    }

    augment /ifm:ifm/ifm:interfaces/ifm:interface {
      description "PW loop check.";
      container vll-pw-loop-check {
        when
          "../ifm:type='Ethernet' or
         ../ifm:type='GigabitEthernet' or
         ../ifm:type='Eth-Trunk' or
         ../ifm:type='400GE' or
         ../ifm:type='100GE' or
         ../ifm:type='50GE' or
         ../ifm:type='40GE' or
         ../ifm:type='25GE' or
         ../ifm:type='10GE' or
         ../ifm:type='XGigabitEthernet' or
         ../ifm:type='GEBrief' or
         ../ifm:type='50|100GE' or
         ../ifm:type='FlexE'";
        presence "Enable PW loop check.";
        description
          "Enable/disable PW loop check.";
        leaf time {
          type uint32 {
            range "1..65535";
          }
          units "s";
          default "300";
          description "PW loop check time.";
        }
      }  // container vll-pw-loop-check
    }

    augment /ifm:ifm/ifm:interfaces/ifm:interface {
      description
        "Configure the encapsulation VLAN pass of a PW.";
      container encapsulation-vlan {
        when
          "../ifm:class='sub-interface' and ../ifm:l2-mode-enable='true' and ../ifm:type!='Virtual-Ethernet'";
        description
          "Configure the encapsulation VLAN pass of a PW.";
        leaf vlan-pass {
          type boolean;
          default "false";
          description
            "Enable/disable the VLAN pass.";
        }
      }  // container encapsulation-vlan
    }
  }  // module huawei-l2vpn-vll-ext