module openconfig-aft-network-instance {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/aft/ni";

    prefix oc-aftni;

    import openconfig-extensions {
      prefix oc-ext;
    }
    import openconfig-network-instance {
      prefix oc-ni;
    }

    organization "OpenConfig working group";

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

    description
      "This module provides augmentations that are utilized
     when building the OpenConfig network instance model to
     add per-NI AFTs.";

    revision "2023-04-25" {
      description
        "Clarify use of the interface-ref type.";
      reference
        "0.3.1";

    }

    revision "2022-03-29" {
      description
        "Relocate next-hop-group/next-hop-group-network-instance
      from openconfig-aft-common to resolve absolute path
      leafref specific to network-instances";
      reference
        "0.3.0";

    }

    revision "2018-11-21" {
      description
        "Add OpenConfig module metadata extensions.";
      reference
        "0.2.3";

    }

    revision "2017-08-24" {
      description "Formatting fixes";
      reference
        "0.2.2";

    }

    revision "2017-01-13" {
      description
        "Updated revision for external review";
      reference
        "0.2.1";

    }

    oc-ext:openconfig-version "0.3.1";
    oc-ext:regexp-posix;
    oc-ext:catalog-organization "openconfig";
    oc-ext:origin "openconfig";

    grouping aft-nexthop-ni-state {
      description
        "Operational state parameters relating to a next-hop which reference a
      network instance.";
      leaf network-instance {
        type oc-ni:network-instance-ref;
        description
          "The network-instance within which the next-hop should be resolved.
         When this leaf is unspecified, the next-hop is resolved within
         the local instance.";
      }
    }  // grouping aft-nexthop-ni-state

    grouping aft-entry-ni-state {
      description
        "Operational state parameters relating to an AFT entry which reference
      a network instance.";
      leaf origin-network-instance {
        type oc-ni:network-instance-ref;
        description
          "If the AFT entry was imported from another network instance (e.g., it
        corresponds to a L3 forwarding entry which was learned within another
        network-instance), the value of this leaf reflects the network-instance
        from which it was learned.

        For example, if the local network-instance corresponds to a L3VRF, and
        routes are imported from the VPNv4 address-family of the BGP instance
        in the DEFAULT_INSTANCE, then this value would reflect the
        DEFAULT_INSTANCE as the origin-network-instance.";
      }
    }  // grouping aft-entry-ni-state

    grouping aft-entry-nexthop-group-state {
      description
        "Operational state nexthop group parameters relating to an AFT entry
      which reference a network instance.";
      leaf next-hop-group {
        type leafref {
          path "/oc-ni:network-instances/oc-ni:network-instance/oc-ni:afts/oc-ni:next-hop-groups/oc-ni:next-hop-group/oc-ni:state/oc-ni:id";
        }
        description
          "A reference to the next-hop-group that is in use for the entry within
        the AFT. Traffic is distributed across the set of next-hops within the
        next-hop group according to the weight. This node needs to refer to any
        network-instance on the system hence must be absolute.";
      }

      leaf next-hop-group-network-instance {
        type oc-ni:network-instance-ref;
        description
          "The network instance to look up the next-hop-group in. If unspecified,
        the next hop group is in the local network instance. The referenced
        network-instance must be an existing network instance on the device and
        have corresponding entries in the /network-instances/network-instance
        list.";
      }
    }  // grouping aft-entry-nexthop-group-state

    augment /oc-ni:network-instances/oc-ni:network-instance/oc-ni:afts/oc-ni:next-hops/oc-ni:next-hop/oc-ni:state {
      description
        "Add leaves that require referencing of a network instance to the
      operational state parameters of a next-hop within the AFT for IPv4
      unicast.";
      uses aft-nexthop-ni-state;
    }

    augment /oc-ni:network-instances/oc-ni:network-instance/oc-ni:afts/oc-ni:ipv4-unicast/oc-ni:ipv4-entry/oc-ni:state {
      description
        "Add leaves that require referencing of a network instance to the
      operational state parameters of an entry within the IPv4 unicast AFT.";
      uses aft-entry-nexthop-group-state;

      uses aft-entry-ni-state;
    }

    augment /oc-ni:network-instances/oc-ni:network-instance/oc-ni:afts/oc-ni:ipv6-unicast/oc-ni:ipv6-entry/oc-ni:state {
      description
        "Add leaves that require referencing of a network instance to the
      operational state parameters of an entry within the IPv6 unicast AFT.";
      uses aft-entry-nexthop-group-state;

      uses aft-entry-ni-state;
    }

    augment /oc-ni:network-instances/oc-ni:network-instance/oc-ni:afts/oc-ni:policy-forwarding/oc-ni:policy-forwarding-entry/oc-ni:state {
      description
        "Add leaves that require referencing of a network instance to the
      operational state parameters of an entry within the Policy Forwarding
      AFT.";
      uses aft-entry-nexthop-group-state;
    }

    augment /oc-ni:network-instances/oc-ni:network-instance/oc-ni:afts/oc-ni:mpls/oc-ni:label-entry/oc-ni:state {
      description
        "Add leaves that require referencing of a network instance to the
      operational state parameters of an entry within the MPLS AFT.";
      uses aft-entry-nexthop-group-state;
    }

    augment /oc-ni:network-instances/oc-ni:network-instance/oc-ni:afts/oc-ni:ethernet/oc-ni:mac-entry/oc-ni:state {
      description
        "Add leaves that require referencing of a network instance to the
      operational state parameters of an entry within the Ethernet AFT.";
      uses aft-entry-nexthop-group-state;
    }
  }  // module openconfig-aft-network-instance