submodule openconfig-aft-ipv6 {

    yang-version 1;

    belongs-to openconfig-aft {
        prefix oc-aft;
    }

    import openconfig-extensions {
      prefix oc-ext;
    }
    import openconfig-inet-types {
      prefix oc-inet;
    }

    include openconfig-aft-common;

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
    www.openconfig.net";

    description
      "Submodule containing definitions of groupings for the abstract
    forwarding tables for IPv6.";

    revision "2024-01-26" {
      description
        "Add gre container under next-hops aft entry state.
      Add src-ip, dst-ip and ttl under gre aft entry state
      for telemetry.";
      reference
        "2.5.0";

    }

    revision "2023-09-26" {
      description
        "Add next-hop-group-name in NHG AFT entry state.";
      reference
        "2.4.0";

    }

    revision "2023-04-19" {
      description
        "Add atomic attribute to AFT containers.";
      reference
        "2.3.0";

    }

    revision "2022-06-16" {
      description
        "Add state-synced container under afts.";
      reference
        "2.2.0";

    }

    revision "2022-06-15" {
      description
        "Add decapsulate-header in NH AFT entry state";
      reference
        "2.1.0";

    }

    revision "2022-05-17" {
      description
        "Relocate next-hop-group/next-hop-group-network-instance
      from openconfig-aft-common to resolve absolute path
      leafref specific to network-instances";
      reference
        "2.0.0";

    }

    revision "2022-01-27" {
      description
        "Add next hop counters and prefix counters.";
      reference
        "1.0.0";

    }

    revision "2022-01-26" {
      description
        "Add vni-label and tunnel-src-ip-address properties under next-hops";
      reference
        "0.10.0";

    }

    revision "2021-12-09" {
      description
        "Add pop-top-label in NH AFT entry state";
      reference
        "0.9.0";

    }

    revision "2021-08-06" {
      description
        "Add references to the network instance within which to resolve
      a next-hop-group; fix defect where NHG could not be an ID defined
      outside the current NI; add metadata; add IP-in-IP encap.";
      reference
        "0.8.0";

    }

    revision "2021-07-15" {
      description
        "NHG-ID and NH-ID space management.";
      reference
        "0.7.0";

    }

    revision "2020-11-06" {
      description
        "Make AFT model read-only.";
      reference
        "0.6.0";

    }

    revision "2020-09-09" {
      description
        "Remove leafs that are not used as keys from config containers as
      AFT model is ready-only.
      * next-hop/interface-ref/config.
      * all leafs under policy-forwarding-entry/config except index.";
      reference
        "0.5.0";

    }

    revision "2019-11-07" {
      description
        "Move lsp-name leaf out of aft-common-entry-nexthop-state group.";
      reference
        "0.4.1";

    }

    revision "2019-08-02" {
      description
        "Add installing protocol for IPv[46] unicast entries.
      Add the ability to describe conditional next-hop groups
      outside of the policy forwarding module to allow for efficient
      handling of CBTS, where many prefixes may share the same next-hop
      criteria.";
      reference
        "0.4.0";

    }

    revision "2019-08-01" {
      description
        "Add lsp-name leaf to AFT next-hop.";
      reference
        "0.3.3";

    }

    revision "2018-11-21" {
      description
        "Add OpenConfig module metadata extensions.";
      reference
        "0.3.2";

    }

    revision "2017-08-24" {
      description "Formatting fixes";
      reference
        "0.3.1";

    }

    revision "2017-05-10" {
      description
        "Refactor to provide concretised per-AF schemas per AFT.";
      reference
        "0.3.0";

    }

    oc-ext:openconfig-version "2.5.0";

    grouping aft-ipv6-unicast-structural {
      description
        "Structural grouping defining the schema for the IPv6 unicast
      abstract forwarding table.";
      list ipv6-entry {
        oc-ext:telemetry-atomic;
        key "prefix";
        description
          "List of the IPv6 unicast entries within the abstract
        forwarding table. This list is keyed by the destination IPv6
        prefix.";
        leaf prefix {
          type leafref {
            path "../state/prefix";
          }
          description
            "Reference to the IPv6 unicast destination prefix which
          must be matched to utilise the AFT entry.";
        }

        container state {
          config false;
          description
            "Operational state parameters for the IPv6 unicast AFT
          entry.";
          uses aft-ipv6-unicast-entry-state;
        }  // container state
      }  // list ipv6-entry
    }  // grouping aft-ipv6-unicast-structural

    grouping aft-ipv6-unicast-entry-state {
      description
        "Operational state parameters for the IPv6 unicast entry.";
      leaf prefix {
        type oc-inet:ipv6-prefix;
        description
          "The IPv6 destination prefix that should be matched to
          utilise the AFT entry.";
      }

      uses aft-common-entry-state {
        augment counters {
          description
            "The number of packets and octets matched the AFT entry
          and routed to next-hops within the backup next-hop-group";
          uses aft-common-backup-entry-counter-state;
        }
      }

      uses aft-common-ip-state;
    }  // grouping aft-ipv6-unicast-entry-state
  }  // submodule openconfig-aft-ipv6