module Cisco-IOS-XE-arp-oper {

    yang-version 1;

    namespace
      "http://cisco.com/ns/yang/Cisco-IOS-XE-arp-oper";

    prefix arp-ios-xe-oper;

    import Cisco-IOS-XE-ios-common-oper {
      prefix ios-common-ios-xe-oper;
    }
    import ietf-inet-types {
      prefix inet;
    }
    import ietf-yang-types {
      prefix yang;
    }
    import cisco-semver {
      prefix cisco-semver;
    }

    organization "Cisco Systems, Inc.";

    contact
      "Cisco Systems, Inc.
     Customer Service

     Postal: 170 W Tasman Drive
     San Jose, CA 95134

     Tel: +1 1800 553-NETS

     E-mail: cs-yang@cisco.com";

    description
      "This module contains a collection of YANG definitions
     for IOS-XE ARP operational data.";

    revision "2021-07-01" {
      description
        "Deprecated arp-oper list. New arp-entry list with support for multiple
       ARP entries with the same IP address replaces the deprecated list.";
      reference
        "1.3.0";

    }

    revision "2019-05-01" {
      description "Added semantic version";
      reference
        "1.2.0";

    }

    revision "2018-07-13" {
      description "change in description";
      reference
        "1.1.0";

    }

    revision "2017-12-13" {
      description "Initial revision";
      reference
        "1.0.0";

    }

    cisco-semver:module-version "1.3.0";
    cisco-semver:module-version "1.2.0";
    cisco-semver:module-version "1.1.0";
    cisco-semver:module-version "1.0.0";

    typedef ios-arp-mode {
      type enumeration {
        enum "ios-arp-mode-null" {
          value 0;
          description "Undefined - error";
        }
        enum "ios-arp-mode-dynamic" {
          value 1;
          description
            "Entry has been learned";
        }
        enum "ios-arp-mode-incomplete" {
          value 2;
          description
            "We've requested, but have no reply yet";
        }
        enum "ios-arp-mode-interface" {
          value 3;
          description "Interface entry";
        }
        enum "ios-arp-mode-static" {
          value 4;
          description "Static Entry";
        }
        enum "ios-arp-mode-alias" {
          value 5;
          description
            "Static - We're fronting this host";
        }
        enum "ios-arp-mode-app-simple" {
          value 6;
          description
            "Simple Application ARP";
        }
        enum "ios-arp-mode-app-alias" {
          value 7;
          description "Application Alias";
        }
        enum "ios-arp-mode-app-timer" {
          value 8;
          description "Application Timer";
        }
      }
      description
        "The mode that this entry is running in";
    }

    grouping arp-oper-key {
      description "Key for ARP entry";
      leaf address {
        type inet:ip-address;
        description
          "High level protocol address";
      }

      leaf interface {
        type string;
        description
          "Interface associated with this ARP entry";
      }
    }  // grouping arp-oper-key

    grouping arp-entry {
      description
        "ARP Operational Data Entry";
      leaf enctype {
        type ios-common-ios-xe-oper:ios-encaps-type;
        description
          "Protocol that produced the entry";
      }

      leaf type {
        type ios-common-ios-xe-oper:ios-linktype;
        description
          "Protocol type of the ARP entry";
      }

      leaf mode {
        type ios-arp-mode;
        description "Mode of the ARP entry";
      }

      leaf hwtype {
        type ios-common-ios-xe-oper:ios-snpa-type;
        description "Type of HW address";
      }

      leaf hardware {
        type yang:mac-address;
        description "Hardware address";
      }

      leaf time {
        type yang:date-and-time;
        description
          "Time of the last update";
      }
    }  // grouping arp-entry

    grouping arp-oper {
      description
        "ARP Operational Data Entry";
      leaf address {
        type inet:ip-address;
        description
          "High level protocol address";
      }

      leaf enctype {
        type ios-common-ios-xe-oper:ios-encaps-type;
        description
          "Protocol that produced the entry";
      }

      leaf interface {
        type string;
        description
          "Interface associated with this ARP entry";
      }

      leaf type {
        type ios-common-ios-xe-oper:ios-linktype;
        description
          "Protocol that this ARP entry belongs to";
      }

      leaf mode {
        type ios-arp-mode;
        description
          "The mode that this entry is running in";
      }

      leaf hwtype {
        type ios-common-ios-xe-oper:ios-snpa-type;
        description "Type of HW address";
      }

      leaf hardware {
        type yang:mac-address;
        description "hardware address";
      }

      leaf time {
        type yang:date-and-time;
        description
          "Time of the last update";
      }
    }  // grouping arp-oper

    grouping arp-vrf {
      description "ARP Table Parent VRF";
      leaf vrf {
        type string;
        description
          "VRF name that the ARP table entries are tied to";
      }

      list arp-oper {
        key "address";
        status deprecated;
        description
          "This list is deprecated because it does not support multiple ARP entries with
         the same IP address. Use arp-entry list instead. The new list supports multiple
         ARP entries with the same IP address across different interfaces.";
        uses arp-ios-xe-oper:arp-oper;
      }  // list arp-oper

      list arp-entry {
        key "address interface";
        description
          "List of ARP entries associated with this VRF";
        uses arp-ios-xe-oper:arp-oper-key;

        uses arp-ios-xe-oper:arp-entry;
      }  // list arp-entry
    }  // grouping arp-vrf

    container arp-data {
      config false;
      description
        "This module contains a collection of YANG definitions for
       monitoring the operation of IOS-XE ARP.
       Copyright (c) 2018-2019, 2021 by Cisco Systems, Inc.
       All rights reserved.";
      list arp-vrf {
        key "vrf";
        description
          "List of VRFs with ARP table entries";
        uses arp-ios-xe-oper:arp-vrf;
      }  // list arp-vrf
    }  // container arp-data
  }  // module Cisco-IOS-XE-arp-oper