submodule openconfig-isis-routing {

    yang-version 1;

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

    import openconfig-isis-types {
      prefix oc-isis-types;
    }
    import openconfig-extensions {
      prefix oc-ext;
    }
    import openconfig-mpls-types {
      prefix oc-mplst;
    }
    import openconfig-segment-routing {
      prefix oc-sr;
    }

    organization "OpenConfig working group";

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

    description
      "This module describes YANG model for ISIS Routing";

    revision "2024-02-20" {
      description
        "Fix typo in RFC reference for adjacency-state.";
      reference
        "1.6.2";

    }

    revision "2023-11-01" {
      description
        "Refactor apply policy to separate default policy in it's own common
      set of groupings";
      reference
        "1.6.1";

    }

    revision "2023-05-01" {
      description
        "Add ISIS total-lsps counter.";
      reference
        "1.6.0";

    }

    revision "2023-04-25" {
      description
        "Clarify use of the interface-ref type.";
      reference
        "1.5.1";

    }

    revision "2023-03-27" {
      description "Add weighted ecmp.";
      reference
        "1.5.0";

    }

    revision "2023-03-20" {
      description
        "Per-level global enabled configuration default false re-added to keep
      backward compatibility.";
      reference
        "1.4.1";

    }

    revision "2023-02-22" {
      description
        "Deprecate the instance leaf, and add a new instance-id leaf
      that indicates the value to be used in the Instance Identifier
      TLV.";
      reference
        "1.4.0";

    }

    revision "2023-01-25" {
      description
        "Per-level global enabled configuration removed, since it duplicates
      the level-capability leaf.";
      reference
        "1.3.0";

    }

    revision "2023-01-04" {
      description
        "Add max ecmp paths for address family.";
      reference
        "1.2.0";

    }

    revision "2022-09-20" {
      description
        "Add CSNP enable to IS-IS global configuration.";
      reference
        "1.1.0";

    }

    revision "2022-05-10" {
      description
        "Modify internal/external route preference to unrestricted uint32
      type.";
      reference
        "1.0.0";

    }

    revision "2022-03-01" {
      description
        "Add simple authentication key support.";
      reference
        "0.9.0";

    }

    revision "2022-02-24" {
      description
        "Add Hello PDU padding type to IS-IS global configuration.";
      reference
        "0.8.0";

    }

    revision "2022-01-19" {
      description
        "Align revisions across modules.";
      reference
        "0.7.1";

    }

    revision "2021-12-31" {
      description
        "Add support for per-interface hello authentication, and per-level
      *SNP authentication.";
      reference
        "0.7.0";

    }

    revision "2021-06-16" {
      description
        "Remove trailing whitespace";
      reference
        "0.6.2";

    }

    revision "2021-03-17" {
      description
        "Add bfd support without augmentation.";
      reference
        "0.6.1";

    }

    revision "2020-03-24" {
      description
        "Support IGP-LDP sync per interface.";
      reference
        "0.6.0";

    }

    revision "2020-02-04" {
      description
        "Consistent prefix for openconfig-mpls-types.";
      reference
        "0.5.0";

    }

    revision "2018-11-21" {
      description
        "Add OpenConfig module metadata extensions.";
      reference
        "0.4.2";

    }

    revision "2018-06-05" {
      description
        "Fix bugs in when statements.";
      reference
        "0.4.1";

    }

    revision "2018-05-14" {
      description
        "Update LSDB model to correct Extended IS reach TLV
      bug. This change is backwards incompatible due to
      adding an additional level of hierarchy to support
      multiple instances of the TLV.";
      reference
        "0.4.0";

    }

    revision "2017-07-26" {
      description
        "Update LSDB and fix bugs.";
      reference
        "0.3.2";

    }

    revision "2017-05-15" {
      description "Refactor LSDB.";
      reference
        "0.3.0";

    }

    revision "2017-01-13" {
      description
        "Remove top-level /isis container";
      reference
        "0.2.1";

    }

    revision "2016-12-15" {
      description
        "Add segment routing to IS-IS module";
      reference
        "0.2.0";

    }

    revision "2016-10-18" {
      description
        "Initial revision of IS-IS models.";
      reference
        "0.1.0";

    }

    oc-ext:openconfig-version "1.6.2";

    grouping rt-admin-config {
      description
        "Re-usable grouping to enable or disable a particular IS-IS feature.";
      leaf enabled {
        type boolean;
        description
          "When set to true, the functionality within which this leaf is
        defined is enabled, when set to false it is explicitly disabled.";
      }
    }  // grouping rt-admin-config

    grouping isis-afi-safi-config {
      description
        "This grouping defines Address-Family configuration parameters";
      leaf afi-name {
        type identityref {
          base oc-isis-types:AFI_TYPE;
        }
        description "Address-family type.";
      }

      leaf safi-name {
        type identityref {
          base oc-isis-types:SAFI_TYPE;
        }
        description
          "Subsequent address-family type.";
      }
    }  // grouping isis-afi-safi-config

    grouping isis-shortcuts-afi-config {
      description
        "This grouping defines ISIS Shortcuts configuration parameters";
      leaf afi-name {
        type identityref {
          base oc-isis-types:AFI_TYPE;
        }
        description "Address-family type.";
      }

      leaf-list nh-type {
        type identityref {
          base oc-mplst:PATH_SETUP_PROTOCOL;
        }
        description
          "Tunnel NH Type(RSVP,SR). When present it implies
      	that nh-type shortcut is enabled for a specified AFI.";
      }
    }  // grouping isis-shortcuts-afi-config

    grouping isis-shortcuts-config {
      description
        "This grouping defines ISIS Shortcuts consfiguration parameters";
      container config {
        description
          "This container defines ISIS shortcuts configuration.";
        uses rt-admin-config;
      }  // container config

      container state {
        config false;
        description
          "This container defines state for ISIS shortcuts.";
        uses rt-admin-config;
      }  // container state
    }  // grouping isis-shortcuts-config

    grouping isis-mt-config {
      description
        "This grouping defines ISIS multi-topology configuration parameters";
      leaf afi-name {
        type identityref {
          base oc-isis-types:AFI_TYPE;
        }
        description "Address-family type.";
      }

      leaf safi-name {
        type identityref {
          base oc-isis-types:SAFI_TYPE;
        }
        description
          "Subsequent address-family type.";
      }
    }  // grouping isis-mt-config

    grouping isis-metric-config {
      description
        "This grouping defines ISIS metric configuration";
      leaf metric {
        type uint32;
        default '10';
        description
          "ISIS metric value(default=10).";
      }
    }  // grouping isis-metric-config

    grouping isis-ecmp-config {
      description
        "This grouping defines ISIS ecmp configuration.";
      leaf max-ecmp-paths {
        type uint8;
        description "ISIS max-paths count.";
      }
    }  // grouping isis-ecmp-config

    grouping isis-afi-safi-list {
      description
        "This grouping defines address-family configuration and state
      information";
      list af {
        key "afi-name safi-name";
        description
          "Address-family/Subsequent Address-family list.";
        leaf afi-name {
          type leafref {
            path "../config/afi-name";
          }
          description
            "Reference to address-family type";
        }

        leaf safi-name {
          type leafref {
            path "../config/safi-name";
          }
          description
            "Reference to subsequent address-family type";
        }

        container config {
          description
            "This container defines AFI-SAFI configuration parameters";
          uses isis-afi-safi-config;

          uses isis-metric-config;

          uses rt-admin-config;

          uses isis-ecmp-config;
        }  // container config

        container state {
          config false;
          description
            "This container defines AFI-SAFI State information";
          uses isis-afi-safi-config;

          uses isis-metric-config;

          uses rt-admin-config;

          uses isis-ecmp-config;
        }  // container state

        uses isis-mt-list;
      }  // list af
    }  // grouping isis-afi-safi-list

    grouping isis-if-afi-safi-list {
      description
        "This grouping defines address-family configuration and state
      information";
      list af {
        key "afi-name safi-name";
        description
          "Address-family/Subsequent Address-family list.";
        leaf afi-name {
          type leafref {
            path "../config/afi-name";
          }
          description
            "Reference to address-family type";
        }

        leaf safi-name {
          type leafref {
            path "../config/safi-name";
          }
          description
            "Reference to subsequent address-family type";
        }

        container config {
          description
            "This container defines AFI-SAFI configuration parameters. Single
            topology is the default setting.";
          uses isis-afi-safi-config;

          uses isis-metric-config;

          uses rt-admin-config;
        }  // container config

        container state {
          config false;
          description
            "This container defines AFI-SAFI State information";
          uses isis-afi-safi-config;

          uses isis-metric-config;

          uses rt-admin-config;
        }  // container state

        uses oc-sr:sr-igp-interface-top;
      }  // list af
    }  // grouping isis-if-afi-safi-list

    grouping isis-if-global-afi-safi-list {
      description
        "This grouping defines address-family configuration and state
      information";
      list af {
        key "afi-name safi-name";
        description
          "Address-family/Subsequent Address-family list.";
        leaf afi-name {
          type leafref {
            path "../config/afi-name";
          }
          description
            "Reference to address-family type";
        }

        leaf safi-name {
          type leafref {
            path "../config/safi-name";
          }
          description
            "Reference to subsequent address-family type";
        }

        container config {
          description
            "This container defines AFI-SAFI configuration parameters. Single
            topology is the default setting.";
          uses isis-afi-safi-config;

          uses rt-admin-config;
        }  // container config

        container state {
          config false;
          description
            "This container defines AFI-SAFI State information";
          uses isis-afi-safi-config;

          uses rt-admin-config;
        }  // container state
      }  // list af
    }  // grouping isis-if-global-afi-safi-list

    grouping isis-shortcuts-afi-list {
      description
        "This grouping defines ISIS Shorcuts configuration and
      state information";
      list afi {
        key "afi-name";
        description "Address-family list.";
        leaf afi-name {
          type leafref {
            path "../config/afi-name";
          }
          description
            "Reference to address-family type.";
        }

        container config {
          description
            "This container defines ISIS Shortcuts configuration parameters";
          uses isis-shortcuts-afi-config;
        }  // container config

        container state {
          config false;
          description
            "This container defines ISIS Shortcuts state information";
          uses isis-shortcuts-afi-config;
        }  // container state
      }  // list afi
    }  // grouping isis-shortcuts-afi-list

    grouping isis-mt-list {
      description
        "This grouping defines multi-topology address-family configuration and
      state information. MT0 - IPv4 Unicast, MT2 - IPv6 Unicast, MT3 -
      IPv4 Multicast, MT4 - IPv6 Multicast";
      container multi-topology {
        description
          "This container defines multi-topology address-family configuration
        and state information. ISIS TLV 235, 237.";
        container config {
          description
            "This container defines AFI-SAFI multi-topology configuration
        parameters";
          uses isis-mt-config;
        }  // container config

        container state {
          config false;
          description
            "This container defines AFI-SAFI multi-topology state information";
          uses isis-mt-config;

          uses rt-admin-config;
        }  // container state
      }  // container multi-topology
    }  // grouping isis-mt-list
  }  // submodule openconfig-isis-routing