module org-openroadm-ip {

    yang-version 1;

    namespace "http://org/openroadm/ip";

    prefix org-openroadm-ip;

    import org-openroadm-device {
      prefix org-openroadm-device;
      revision-date "2022-09-30";
    }
    import ietf-inet-types {
      prefix inet;
      revision-date "2013-07-15";
    }
    import ietf-yang-types {
      prefix yang;
      revision-date "2013-07-15";
    }

    organization "Open ROADM MSA";

    contact "OpenROADM.org";

    description
      "This model defines Yang model for IP (IPv4 and IPv6) interfaces.

     This model reuses data items defined in the IETF YANG model for
     interfaces described by RFC 7277.

     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 "2022-09-30" {
      description "Version 12.0";
    }

    revision "2022-05-27" {
      description "Version 11.1";
    }

    revision "2022-03-25" {
      description "Version 11.0";
    }

    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 "2014-06-16" {
      description "Initial revision.";
      reference
        "RFC 7277: A YANG Data Model for IP Management";

    }


    feature ipv4-non-contiguous-netmasks {
      description
        "Indicates support for configuring non-contiguous
       subnet masks.";
    }

    feature ipv4-proxy-arp-subnet {
      description
        "Indicates support for IPv4 proxy arp subnet";
    }

    feature ipv6-privacy-autoconf {
      description
        "Indicates support for Privacy Extensions for Stateless Address
       Autoconfiguration in IPv6.";
      reference
        "RFC 4941: Privacy Extensions for Stateless Address
        	  Autoconfiguration in IPv6";

    }

    feature ipv6-proxy-ndp-subnet {
      description
        "Indicates support for IPv6 proxy ndp subnet";
    }

    typedef ip-address-origin {
      type enumeration {
        enum "other" {
          value 0;
          description
            "None of the following.";
        }
        enum "static" {
          value 1;
          description
            "Indicates that the address has been statically
           configured - for example, using NETCONF or a Command Line
           Interface.";
        }
        enum "dhcp" {
          value 2;
          description
            "Indicates an address that has been assigned to this
           system by a DHCP server.";
        }
        enum "link-layer" {
          value 3;
          description
            "Indicates an address created by IPv6 stateless
           autoconfiguration that embeds a link-layer address in its
           interface identifier.";
        }
        enum "random" {
          value 4;
          description
            "Indicates an address chosen by the system at

           random, e.g., an IPv4 address within 169.254/16, an
           RFC 4941 temporary address, or an RFC 7217 semantically
           opaque address.";
          reference
            "RFC 4941: Privacy Extensions for Stateless Address
            	  Autoconfiguration in IPv6
             RFC 7217: A Method for Generating Semantically Opaque
            	  Interface Identifiers with IPv6 Stateless
            	  Address Autoconfiguration (SLAAC)";

        }
      }
      description
        "The origin of an address.";
    }

    typedef neighbor-origin {
      type enumeration {
        enum "other" {
          value 0;
          description
            "None of the following.";
        }
        enum "static" {
          value 1;
          description
            "Indicates that the mapping has been statically
           configured - for example, using NETCONF or a Command Line
           Interface.";
        }
        enum "dynamic" {
          value 2;
          description
            "Indicates that the mapping has been dynamically resolved
           using, e.g., IPv4 ARP or the IPv6 Neighbor Discovery
           protocol.";
        }
      }
      description
        "The origin of a neighbor entry.";
    }

    typedef ipv6-address-status {
      type enumeration {
        enum "preferred" {
          value 0;
          description
            "This is a valid address that can appear as the
           destination or source address of a packet.";
        }
        enum "deprecated" {
          value 1;
          description
            "This is a valid but deprecated address that should
           no longer be used as a source address in new
           communications, but packets addressed to such an
           address are processed as expected.";
        }
        enum "invalid" {
          value 2;
          description
            "This isn't a valid address, and it shouldn't appear
           as the destination or source address of a packet.";
        }
        enum "inaccessible" {
          value 3;
          description
            "The address is not accessible because the interface
           to which this address is assigned is not
           operational.";
        }
        enum "unknown" {
          value 4;
          description
            "The status cannot be determined for some reason.";
        }
        enum "tentative" {
          value 5;
          description
            "The uniqueness of the address on the link is being
           verified.  Addresses in this state should not be
           used for general communication and should only be
           used to determine the uniqueness of the address.";
        }
        enum "duplicate" {
          value 6;
          description
            "The address has been determined to be non-unique on
           the link and so must not be used.";
        }
        enum "optimistic" {
          value 7;
          description
            "The address is available for use despite DAD not being
           fully complete";
        }
      }
    }
  }  // module org-openroadm-ip