submodule openconfig-isis-lsp {

    yang-version 1;

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

    import openconfig-extensions {
      prefix oc-ext;
    }
    import openconfig-inet-types {
      prefix inet;
    }
    import openconfig-isis-types {
      prefix oc-isis-types;
    }
    import openconfig-isis-lsdb-types {
      prefix oc-isis-lsdb-types;
    }
    import openconfig-types {
      prefix oc-types;
    }
    import openconfig-mpls-types {
      prefix oc-mplst;
    }

    organization "OpenConfig working group";

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

    description
      "This sub-module describes a YANG model for the IS-IS Link State
    Database (LSDB).

    Portions of this code were derived from IETF RFCs relating to the
    IS-IS protocol.
    Please reproduce this note if possible.
    IETF code is subject to the following copyright and license:
    Copyright (c) IETF Trust and the persons identified as authors of
    the code.
    All rights reserved.
    Redistribution and use in source and binary forms, with or without
    modification, is permitted pursuant to, and subject to the license
    terms contained in, the Simplified BSD License set forth in
    Section 4.c of the IETF Trust's Legal Provisions Relating
    to IETF Documents (http://trustee.ietf.org/license-info).";

    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 key authentication 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 "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 "1.0.0";

    typedef isis-metric-flags {
      type enumeration {
        enum "INTERNAL" {
          value 0;
          description
            "When this flag is not set, internal metrics are in use.";
        }
        enum "UNSUPPORTED" {
          value 1;
          description
            "When this flag (referred to as the S-bit) is set, then
          the metric is unsupported.";
        }
      }
      description
        "Type definition for flags used in IS-IS metrics";
    }
  }  // submodule openconfig-isis-lsp