module ieee802-dot1q-lldp-evb-tlv {

    yang-version 1.1;

    namespace
      'urn:ieee:std:802.1Q:yang:ieee802-dot1q-lldp-evb-tlv';

    prefix lldp-evb-tlv;

    import ieee802-dot1ab-lldp {
      prefix lldp;
    }

    organization
      "Institute of Electrical and Electronics Engineers";

    contact
      "WG-URL: http://ieee802.org/1/
     WG-EMail: stds-802-1-l@ieee.org
     Contact: IEEE 802.1 Working Group Chair
     Postal: C/O IEEE 802.1 Working Group
     IEEE Standards Association
          445 Hoes Lane
          Piscataway, NJ 08854
          USA
    
     E-mail: stds-802-1-chairs@ieee.org";

    description
      "IEEE Std 802.1Q extension tlvs for LLDP";

    revision "2021-03-02" {
      description
        "LLDP extension tlv for EVB. Published as part of IEEE Std
      802.1Qcz-2021. Initial version.";
      reference
        "IEEE Std 802.1Qcz-2021 Annex D";

    }


    grouping evb-tlv {
      description
        "Edge Virtual Bridging (EVB) TLV";
      reference
        "IEEE Std 802.1Q-2018 Annex D.2.12";

      leaf evb-tlv-info-string {
        type binary {
          length "0..9";
        }
        config false;
        description
          "Opaque string containing EVB TLV information string. As the
        elements within the string are not individually manipulated by
        management (they are of concern only to the state machines), the
        sub-structure of the string is not visible as separate objects
        within the local database.";
        reference
          "IEEE Std 802.1Q-2018 Annex D.2.12";

      }
    }  // grouping evb-tlv

    grouping cdcp-tlv {
      description
        "Channel Discovery and Configuration TLV";
      reference
        "IEEE Std 802.1Q-2018 Annex D.2.13";

      leaf cdcp-tlv-info-string {
        type binary {
          length "0..511";
        }
        config false;
        description
          "Opaque string containing CDCP TLV information. Up to 167
        S-channel numbers are supported. As the elements within the
        string are not individually manipulated by management (they are
        of concern only to the state machines), the sub-structure of the
        string is not visible as separate objects within the local
        database.";
        reference
          "IEEE Std 802.1Q-2018 Annex D.2.13 and D.2.13.8";

      }
    }  // grouping cdcp-tlv

    augment /lldp:lldp/lldp:port {
      description
        "Augments port with the evb extension tlv";
      leaf tlvs-tx-org-evb-enable {
        type bits {
          bit evb {
            position 0;
            description
              "802.1Q-2018 Annex D2.12";
          }
          bit cdcp {
            position 1;
            description
              "802.1Q-2018 Annex D2.13";
          }
        }
        description
          "Bitmap that includes the evbSet of tlvs from Table D.1 of
        802.1Q-2018";
        reference
          "IEEE Std 802.1Q-2018 Annex D.1";

      }

      container evb-tlv-extension {
        description "The EVB TLV";
        uses evb-tlv;
      }  // container evb-tlv-extension

      container cdcp-tlv-extension {
        description "The CDCP TLV";
        uses cdcp-tlv;
      }  // container cdcp-tlv-extension
    }

    augment /lldp:lldp/lldp:port/lldp:remote-systems-data {
      description
        "Augments port remote-systems-data with received evb extension tlvs";
      container evb-tlv-extension {
        description
          "Holds a received EVB TLV";
        uses evb-tlv;
      }  // container evb-tlv-extension

      container cdcp-tlv-extension {
        description
          "Holds a received CDCP TLV";
        uses cdcp-tlv;
      }  // container cdcp-tlv-extension
    }
  }  // module ieee802-dot1q-lldp-evb-tlv