submodule Cisco-IOS-XR-ipv6-io-oper-sub1 {

    yang-version 1;

    belongs-to Cisco-IOS-XR-ipv6-io-oper {
        prefix Cisco-IOS-XR-ipv6-io-oper;
    }

    import ietf-inet-types {
      prefix inet;
    }
    import cisco-semver {
      prefix semver;
    }

    organization "Cisco Systems, Inc.";

    contact
      "Cisco Systems, Inc.
     Customer Service
     
     Postal: 170 West Tasman Drive
     San Jose, CA 95134
     
     Tel: +1 800 553-NETS
     
     E-mail: cs-yang@cisco.com";

    description
      "This submodule contains a collection of YANG definitions
     for Cisco IOS-XR ipv6-io package operational data.
     
     Copyright (c) 2013-2019 by Cisco Systems, Inc.
     All rights reserved.";

    revision "2019-10-21" {
      description
        "Added List of VRF IDs for path-mtu cache.";
    }

    revision "2019-04-05" {
      description
        "Establish semantic version baseline.";
    }

    revision "2015-11-09" {
      description "IOS XR 6.0 revision.";
    }

    revision "2015-08-27" {
      description "IOS XR 6.0.0 revision.";
    }

    semver:module-version "1.1.0";
    semver:module-version "1.0.1";

    grouping IPV6-PMTU-CACHE {
      description "PMTU Cache";
      leaf interface-handle {
        type uint32;
        description "Interface name";
      }

      leaf address {
        type inet:ipv6-address;
        description
          "IPv6 Address of Destination";
      }

      leaf vrf-name {
        type string {
          length "0..32";
        }
        description "VRF NAME";
      }

      leaf pmtu {
        type uint32;
        description "Pmtu value";
      }

      leaf age {
        type uint64;
        description
          "Time remaining for this entry";
      }
    }  // grouping IPV6-PMTU-CACHE

    grouping IPV6-PMTU-CACHE-LIST {
      description
        "IPv6 PMTU Cache Information";
      list pmtu-cache {
        description "Pmtu Cache list";
        uses IPV6-PMTU-CACHE;
      }  // list pmtu-cache
    }  // grouping IPV6-PMTU-CACHE-LIST

    grouping IPV6-ND-TRAFFIC {
      description "IPV6 ND Traffic";
      leaf sent-router-solicitation-messages {
        type uint32;
        description
          "ICMP Router Solicitations Sent";
      }

      leaf sent-router-advertisement-messages {
        type uint32;
        description
          "ICMP Router Advertisements Sent";
      }

      leaf sent-neighbor-solicitation-messages {
        type uint32;
        description
          "ICMP Neighbor Solicitations Sent";
      }

      leaf sent-neighbor-advertisement-messages {
        type uint32;
        description
          "ICMP Neighbor Advertisements Sent";
      }

      leaf sent-redirect-messages {
        type uint32;
        description "ICMP Redirect Sent";
      }

      leaf received-router-solicitation-messages {
        type uint32;
        description
          "ICMP Router Solicitations Received";
      }

      leaf received-router-advertisement-messages {
        type uint32;
        description
          "ICMP Router Advertisements Received";
      }

      leaf received-neighbor-solicitation-messages {
        type uint32;
        description
          "ICMP Neighbor Solicitations Received";
      }

      leaf received-neighbor-advertisement-messages {
        type uint32;
        description
          "ICMP Neighbor Advertisements Received";
      }

      leaf received-redirect-messages {
        type uint32;
        description "ICMP Redirect Received";
      }
    }  // grouping IPV6-ND-TRAFFIC

    grouping IPV6-IO-ICMP-TRAFFIC {
      description
        "ICMPv6 Traffic Information";
      leaf total-messages {
        type uint32;
        description "ICMP Received";
      }

      leaf too-short-error-messages {
        type uint32;
        description "ICMP Too Short Errors";
      }

      leaf checksum-error-messages {
        type uint32;
        description "ICMP Checksum Errors";
      }

      leaf unknown-error-type-messages {
        type uint32;
        description "ICMP Unknown Error";
      }

      leaf output-messages {
        type uint32;
        description "ICMP Transmitted";
      }

      leaf sent-rate-limited-packets {
        type uint32;
        description
          "ICMP Sent Packets Ratelimited";
      }

      leaf sent-unreachable-routing-messages {
        type uint32;
        description
          "ICMP Route Unreachable Sent";
      }

      leaf sent-unreachable-admin-messages {
        type uint32;
        description
          "ICMP Admin Unreachable Sent";
      }

      leaf sent-unreachable-neighbor-messages {
        type uint32;
        description
          "ICMP Host Unreachable Sent";
      }

      leaf sent-unreachable-address-messages {
        type uint32;
        description
          "ICMP Addr Unreachable Sent";
      }

      leaf sent-unreachable-port-messages {
        type uint32;
        description
          "ICMP Port Unreachable Sent";
      }

      leaf received-unreachable-routing-messages {
        type uint32;
        description
          "ICMP Route Unreachable Received";
      }

      leaf received-unreachable-admin-messages {
        type uint32;
        description
          "ICMP Admin Unreachable Received";
      }

      leaf received-unreachable-neighbor-messages {
        type uint32;
        description
          "ICMP Host Unreachable Received";
      }

      leaf received-unreachable-address-messages {
        type uint32;
        description
          "ICMP Addr Unreachable Received";
      }

      leaf received-unreachable-port-messages {
        type uint32;
        description
          "ICMP Port Unreachable Received";
      }

      leaf sent-hop-count-expired-messages {
        type uint32;
        description
          "ICMP Hop Count Expired Sent";
      }

      leaf sent-reassembly-timeouts {
        type uint32;
        description
          "ICMP Reassembly Timeouts";
      }

      leaf received-hop-count-expired-messages {
        type uint32;
        description
          "ICMP Hop Count Expired Received";
      }

      leaf received-reassembly-timeouts {
        type uint32;
        description
          "ICMP Reassembly Timeouts";
      }

      leaf sent-too-big-messages {
        type uint32;
        description
          "ICMP Too Big Messages Sent";
      }

      leaf received-too-big-messages {
        type uint32;
        description
          "ICMP Too Big Messages Received";
      }

      leaf sent-parameter-error-messages {
        type uint32;
        description
          "ICMP Parameter Error Messages Sent";
      }

      leaf sent-parameter-header-messages {
        type uint32;
        description
          "ICMP Parameter Next Header Messages Sent";
      }

      leaf sent-parameter-option-messages {
        type uint32;
        description
          "ICMP Parameter Option Messages Sent";
      }

      leaf received-parameter-error-messages {
        type uint32;
        description
          "ICMP Parameter Error Messages Received";
      }

      leaf received-parameter-header-messages {
        type uint32;
        description
          "ICMP Parameter Next Header Messages Received";
      }

      leaf received-parameter-option-messages {
        type uint32;
        description
          "ICMP Parameter Option Problem Received";
      }

      leaf sent-echo-request-messages {
        type uint32;
        description "ICMP Echo Request Sent";
      }

      leaf sent-echo-reply-messages {
        type uint32;
        description "ICMP Echo Reply Sent";
      }

      leaf received-echo-request-messages {
        type uint32;
        description
          "ICMP Echo Request Received";
      }

      leaf received-echo-reply-messages {
        type uint32;
        description
          "ICMP Echo Reply Received";
      }

      leaf sent-unknown-timeout-messages {
        type uint32;
        description
          "ICMP Unknown Timeout Messages Sent";
      }

      leaf received-unknown-timeout-messages {
        type uint32;
        description
          "ICMP Unknown Timeout Messages Received";
      }

      leaf sent-parameter-unknown-type-messages {
        type uint32;
        description
          "ICMP Parameter Unknown Type Messages Sent";
      }

      leaf received-parameter-unknown-type-messages {
        type uint32;
        description
          "ICMP Parameter Unknown Type Messages Received";
      }

      leaf sent-unreachable-unknown-type-messages {
        type uint32;
        description
          "ICMP Unreachable Unknown Messages Sent";
      }

      leaf received-unreachable-unknown-type-messages {
        type uint32;
        description
          "ICMP Unreachable Unknown Messages Received";
      }
    }  // grouping IPV6-IO-ICMP-TRAFFIC

    grouping IPV6-IO-TRAFFIC {
      description "IPv6 Traffic Information";
      leaf total-packets {
        type uint32;
        description
          "Total number of IPv6 input Packets";
      }

      leaf local-destination-packets {
        type uint32;
        description
          "Number of Local IPv6 Destination Packets";
      }

      leaf format-errors {
        type uint32;
        description
          "Number of IPv6 Format Errors";
      }

      leaf truncated-packets {
        type uint32;
        description
          "Number of Truncated IPv6 Packets";
      }

      leaf hop-count-exceeded-packets {
        type uint32;
        description
          "Number of IPv6 Hop Count Exceeded Packets";
      }

      leaf bad-source-address-packets {
        type uint32;
        description
          "Number of IPv6 Bad Source Address Packets";
      }

      leaf bad-header-packets {
        type uint32;
        description
          "Number of IPv6 Bad Header Packets";
      }

      leaf unknown-option-type-packets {
        type uint32;
        description
          "Number of IPv6 Unknown Option Type Packets";
      }

      leaf unknown-protocol-packets {
        type uint32;
        description
          "Number of IPv6 Unknown Protocol Packets";
      }

      leaf fragments {
        type uint32;
        description
          "Number of IPv6 Packets to be Fragmented";
      }

      leaf reassembled-packets {
        type uint32;
        description
          "Number of IPv6 Reassembled Packets";
      }

      leaf reassembly-timeouts {
        type uint32;
        description
          "Number of IPv6 Reassembly Timedout packets";
      }

      leaf reassembly-failures {
        type uint32;
        description
          "Number of IPv6 Reassembly Failures";
      }

      leaf reassembly-maximum-drops {
        type uint32;
        description
          "Reassembly Reach Maximum Drop";
      }

      leaf overlap-frag-drops {
        type uint32;
        description
          "Reassembly drop overlap frags";
      }

      leaf generated-packets {
        type uint32;
        description "Packets Output";
      }

      leaf forwarded-packets {
        type uint32;
        description "Packets Forwarded";
      }

      leaf source-routed-packets {
        type uint32;
        description "Packets Source Routed";
      }

      leaf fragmented-packets {
        type uint32;
        description "Packets Fragmented";
      }

      leaf fragment-count {
        type uint32;
        description
          "Fragmented Packet Count";
      }

      leaf fragment-failures {
        type uint32;
        description
          "Number of IPv6 Fragment Packet  Failures";
      }

      leaf no-route-packets {
        type uint32;
        description
          "Number of No Route IPv6 Packets";
      }

      leaf too-big-packets {
        type uint32;
        description "Packet Too Big";
      }

      leaf received-multicast-packets {
        type uint32;
        description "Multicast In";
      }

      leaf sent-multicast-packets {
        type uint32;
        description "Multicast Out";
      }

      leaf miscellaneous-drops {
        type uint32;
        description "Misc. drops";
      }

      leaf lisp-v4-encap-packets {
        type uint32;
        description
          "Locator ID Separation Protocol IPv4 Encapped
         packets";
      }

      leaf lisp-v4-decap-packets {
        type uint32;
        description
          "Locator ID Separation Protocol IPv4 Decapped
         packets";
      }

      leaf lisp-v6-encap-packets {
        type uint32;
        description
          "Locator ID Separation Protocol IPv6 Encapped
         packets";
      }

      leaf lisp-v6-decap-packets {
        type uint32;
        description
          "Locator ID Separation Protocol IPv6 Decapped
         packets";
      }

      leaf lisp-encap-errors {
        type uint32;
        description
          "Locator ID Separation Protocol Encap errors";
      }

      leaf lisp-decap-errors {
        type uint32;
        description
          "Locator ID Separation Protocol Decap errors";
      }

      leaf io-puntback {
        type uint32;
        description "IPv6 IO Puntback";
      }
    }  // grouping IPV6-IO-TRAFFIC

    grouping IPV6-TRAFFIC {
      description
        "IPv6 and ICMPv6 Traffic Information";
      container ipv6 {
        description "IPv6 Statistics";
        uses IPV6-IO-TRAFFIC;
      }  // container ipv6

      container icmp {
        description "ICMP Statistics";
        uses IPV6-IO-ICMP-TRAFFIC;
      }  // container icmp

      container ipv6-node-discovery {
        description
          "IPv6 Node Discovery Statistics";
        uses IPV6-ND-TRAFFIC;
      }  // container ipv6-node-discovery
    }  // grouping IPV6-TRAFFIC
  }  // submodule Cisco-IOS-XR-ipv6-io-oper-sub1