module iecieee60802-tt-mapping {

    yang-version 1.1;

    namespace
      "urn:ieee:std:60802:yang:iecieee60802-tt-mapping";

    prefix tt-mapping;

    import ieee802-dot1q-types {
      prefix dot1q-types;
    }

    organization
      "IEEE 802.1 Working Group and IEC subcommittee 65C:
     Industrial networks, of IEC technical committee 65:
     Industrial-process measurement, control and automation";

    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
      "This module provides information on characteristics of traffic classes
     configured in a network to allow applications to map application traffic
     classes to them.
    
    Copyright (C) IEC/IEEE (2025).
    
    This version of this YANG module is part of IEC/IEEE 60802;
    see the standard itself for full legal notices.";

    revision "2024-12-13" {
      description
        "Published as part of IEC/IEEE 60802-2025.

      The following reference statement identifies each referenced
      IEEE Standard as updated by applicable amendments.";
      reference
        "IEC/IEEE 60802 TSN profile for industrial automation:
        IEC/IEEE 60802-2025.
        IEEE Std 802.1Q Bridges and Bridged Networks:
        IEEE Std 802.1Q-2022, IEEE Std 802.1Qcz-2023,
        IEEE Std 802.1Qcw-2023, IEEE Std 802.1Qdj-2024,
        IEEE Std 802.1Qdx-2024, IEEE Std 802.1Qdy-2025.";

    }


    container tt-mapping {
      description
        "Top-level container for the traffic class module.";
      list network {
        key "network-name";
        description
          "A list of networks, each containing one or more sets of traffic class
         characteristics.";
        leaf network-name {
          type string;
          description
            "The network-name uniquely identifies a network.";
        }

        list traffic-type {
          key "traffic-type-name";
          description
            "A list of traffic types in the network, each with its associated 
          traffic type characteristics.";
          leaf traffic-type-name {
            type string;
            description
              "The traffic-type-name uniquely identifies the traffic type.";
          }

          leaf cyclic {
            type boolean;
            description
              "Indicates if cyclic transmission is mandatory (TRUE) or optional (FALSE)
             for this traffic type.";
            reference
              "4.7.2 of IEC/IEEE 60802-2025";

          }

          leaf data-delivery-req {
            type enumeration {
              enum "frame-latency" {
                value 0;
                description
                  "Data delivery of a frame for a given Talker-Listener pair 
                 occurs within a bounded timespan.";
              }
              enum "flow-latency" {
                value 1;
                description
                  "Data delivery up to a certain number of frames or data size
                 (including bursts of frames) occurring over a defined
                 period.";
              }
              enum "deadline" {
                value 2;
                description
                  "Data delivery of a frame to a given Listener occurs at or
                 before a specific point in time.";
              }
              enum "no" {
                value 3;
                description
                  "No special data delivery requirements.";
              }
            }
            description
              "The data-delivery-req provides information on the data 
           delivery requirements for this traffic type.";
            reference
              "4.7.2 of IEC/IEEE 60802-2025";

          }

          leaf time-triggered {
            type boolean;
            description
              "Indicates if it is required (TRUE) or optional (FALSE) that
             transmission occurs at a specific point in time based upon
             the Working Clock.";
            reference
              "4.7.2 of IEC/IEEE 60802-2025";

          }

          leaf stream-based {
            type boolean;
            default 'true';
            description
              "Indicates if traffic of this traffic type requires
             registering a stream, i.e., allocating dedicated 
             resources, for the  traffic, before a given Talker
             can start transmitting data (TRUE), or if registering
             a stream is not required (FALSE).";
            reference
              "4.7.2 of IEC/IEEE 60802-2025";

          }

          leaf vlan-id {
            type dot1q-types:vlanid;
            description
              "The VID this traffic type is mapped to.";
          }

          list redundancy {
            key "vlan-id-redundant";
            description
              "A list of VIDs this traffic type is mapped to for redundant
           transmission. There is one entry in the list per redundant
           transmission ";
            leaf vlan-id-redundant {
              type dot1q-types:vlanid;
              description
                "The VID this traffic type is mapped for a redundant transmission.";
            }
          }  // list redundancy

          leaf priority-value {
            type dot1q-types:priority-type;
            description
              "The PCP this traffic type is mapped to.";
          }
        }  // list traffic-type
      }  // list network
    }  // container tt-mapping
  }  // module iecieee60802-tt-mapping