module openconfig-network-instance-l3 {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/network-instance-l3";

    prefix oc-ni-l3;

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

    organization "OpenConfig working group";

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

    description
      "This module contains groupings which specifically relate to
Layer 3 network instance configuration and operational state
parameters.";

    revision "2022-09-15" {
      description
        "Reflect implementation status by releasing 1.0.0.";
      reference
        "1.0.0";

    }

    revision "2018-11-21" {
      description
        "Add OpenConfig module metadata extensions.";
      reference
        "0.11.1";

    }

    revision "2018-08-17" {
      description
        "Add a route limit for L3 network instances.";
      reference
        "0.11.0";

    }

    revision "2017-12-13" {
      description
        "Fix incorrect constraint on SR and MPLS containers";
      reference
        "0.9.0";

    }

    revision "2017-08-24" {
      description "Minor formatting fixes";
      reference
        "0.8.1";

    }

    revision "2017-02-28" {
      description
        "Add OSPFv2 to network instance";
      reference
        "0.8.0";

    }

    revision "2017-01-26" {
      description
        "Add policy forwarding to network instance";
      reference
        "0.7.0";

    }

    revision "2017-01-13" {
      description
        "Add AFT to the network instance";
      reference
        "0.6.0";

    }

    revision "2016-12-15" {
      description
        "Add segment routing to network instance";
      reference
        "0.5.0";

    }

    revision "2016-11-10" {
      description
        "Update model to include IS-IS.";
      reference
        "0.4.1";

    }

    revision "2016-09-28" {
      description
        "Change L2 instance to submodule; add MAC table";
      reference
        "0.3.0";

    }

    revision "2016-08-11" {
      description
        "Resolve repeated container names in routing protocols";
      reference
        "0.2.3";

    }

    revision "2016-07-08" {
      description
        "Updated with refactored routing protocol models";
      reference
        "0.2.1";

    }

    revision "2016-03-29" {
      description "Initial revision";
      reference
        "0.2.0";

    }

    revision "2016-03-14" {
      description "Initial revision";
      reference
        "0.1.0";

    }

    oc-ext:openconfig-version "1.0.0";
    oc-ext:regexp-posix;
    oc-ext:catalog-organization "openconfig";
    oc-ext:origin "openconfig";

    grouping l3ni-instance {
      description
        "Configuration and operational state parameters relevant
to network instances that include a Layer 3 type";
    }  // grouping l3ni-instance

    grouping l3ni-instance-common-config {
      description
        "Configuration parameters that are common to L3 network
instances other than the default instance";
      leaf-list enabled-address-families {
        type identityref {
          base octypes:ADDRESS_FAMILY;
        }
        description
          "The address families that are to be enabled for this
network instance.";
      }
    }  // grouping l3ni-instance-common-config

    grouping l3ni-route-limit-structural {
      description
        "Configuration and state for the maximum number of routes
that should be used by routing instance.";
      container route-limits {
        description
          "Configuration and operational state relating to the
maximum number of routes for the address family that
should be allowed within the Layer 3 network instance.

When the specified value is reached, no further prefixes
should be installed into the system's RIB from this network
instance unless the warning only leaf is set. In this case,
new routes should still be installed. If a alarm threshold
is specified, then this should be used to generate
alarms via telemetry for the network instance.";
        list route-limit {
          key "afi";
          description
            "A route limit applying to a particular address family.";
          leaf afi {
            type leafref {
              path "../config/afi";
            }
            description
              "Reference to the address family for which the route
limit is being applied.";
          }

          container config {
            description
              "Configuration options relating to the route limit.";
            uses l3ni-route-limit-config;
          }  // container config

          container state {
            config false;
            description
              "Operational state parameters relating to the route limit.";
            uses l3ni-route-limit-config;

            uses l3ni-route-limit-state;
          }  // container state
        }  // list route-limit
      }  // container route-limits
    }  // grouping l3ni-route-limit-structural

    grouping l3ni-route-limit-config {
      description
        "Configuration options relating to the route limit for a network
instance.";
      leaf afi {
        type identityref {
          base octypes:ADDRESS_FAMILY;
        }
        description
          "The address family for which the route limit applies.";
      }

      leaf maximum {
        type uint32;
        description
          "The maximum number of routes for the address family. The
system should not install more than maximum number of
prefixes into the RIB unless the warning-only leaf is specified.";
      }

      leaf warning-only {
        type boolean;
        default "false";
        description
          "When specified, the route limit specified is considered only as
a warning - and routes should continue to be installed into the
RIB over the limit specified in the maximum leaf.";
      }

      leaf alarm-threshold {
        type uint32;
        description
          "When specified, an alarm should be generated when the threshold
number of installed routes is reached.";
      }
    }  // grouping l3ni-route-limit-config

    grouping l3ni-route-limit-state {
      description
        "Operational state relating to the route limit for a network
instance.";
      leaf threshold-exceeded {
        type boolean;
        description
          "This leaf should be set to true in the case that the threshold
number of routes has been exceeded.";
      }

      leaf installed-routes {
        type uint32;
        description
          "The current number of routes installed for the address family.";
      }
    }  // grouping l3ni-route-limit-state
  }  // module openconfig-network-instance-l3