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 "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 "0.2.3";
    oc-ext:regexp-posix;
    oc-ext:catalog-organization "openconfig";
    oc-ext:origin "openconfig";

    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;
    }

    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

    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-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-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
  }  // module openconfig-aft-network-instance