module org-openroadm-ipv4-unicast-routing {

    yang-version 1;

    namespace
      "http://org/openroadm/ipv4-unicast-routing";

    prefix
      org-openroadm-ipv4-unicast-routing;

    import org-openroadm-routing {
      prefix org-openroadm-routing;
      revision-date "2021-12-10";
    }
    import ietf-inet-types {
      prefix inet;
      revision-date "2013-07-15";
    }
    import org-openroadm-device {
      prefix org-openroadm-device;
      revision-date "2021-12-10";
    }

    organization "Open ROADM MSA";

    contact "OpenROADM.org";

    description
      "This model defines Yang model for IPv4 unicast routing.

     This model reuses data items defined in the IETF YANG model for
     interfaces described by RFC 8022.

     Some attributes which are not required in Open ROADM MSA are removed.
     Yang file included are changed to fit into Open ROADM MSA yang structure.

     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 "2021-12-10" {
      description "Version 10.1";
    }

    revision "2021-09-24" {
      description "Version 10.0";
    }

    revision "2021-05-28" {
      description "Version 9.1";
    }

    revision "2021-03-26" {
      description "Version 9.0";
    }

    revision "2020-12-11" {
      description "Version 8.1";
    }

    revision "2020-09-25" {
      description "Version 8.0";
    }

    revision "2020-05-29" {
      description "Version 7.1.0";
    }

    revision "2020-03-27" {
      description "Version 7.0.0";
    }

    revision "2019-11-29" {
      description "Version 6.1.0";
    }

    revision "2019-09-27" {
      description "Version 6.0.0";
    }

    revision "2019-05-31" {
      description "Version 5.1.0";
    }

    revision "2019-03-29" {
      description "Version 5.0.0";
    }

    revision "2015-05-25" {
      description "Initial revision.";
      reference
        "RFC XXXX: A YANG Data Model for Routing Management";

    }


    identity ipv4-unicast {
      base org-openroadm-routing:ipv4;
      description
        "This identity represents the IPv4 unicast address family.";
    }

    grouping ipv4-uni-grp {
      description "Grouping for IPv4";
      container ipv4 {
        description
          "Configuration of a 'static' pseudo-protocol instance
         consists of a list of routes.";
        list route {
          key "destination-prefix";
          max-elements 32;
          ordered-by user;
          description
            "A user-ordered list of static routes.";
          leaf destination-prefix {
            type inet:ipv4-prefix;
            mandatory true;
            description
              "IPv4 destination prefix.";
          }

          leaf description {
            type string;
            description
              "Textual description of the route.";
          }

          container next-hop {
            description
              "Configuration of next-hop.";
            uses org-openroadm-routing:next-hop-content {
              augment next-hop-options {
                description
                  "Add next-hop address case.";
                leaf next-hop-address {
                  type inet:ipv4-address;
                  description
                    "IPv4 address of the next-hop.";
                }
              }
            }
          }  // container next-hop
        }  // list route
      }  // container ipv4
    }  // grouping ipv4-uni-grp

    augment /org-openroadm-device:org-openroadm-device/org-openroadm-routing:routing/org-openroadm-routing:routing-instance/org-openroadm-routing:routing-protocols/org-openroadm-routing:routing-protocol/org-openroadm-routing:static-routes {
      description
        "This augment defines the configuration of the 'static'
       pseudo-protocol with data specific to IPv4 unicast.";
      uses ipv4-uni-grp;
    }
  }  // module org-openroadm-ipv4-unicast-routing