submodule Cisco-IOS-XR-snmp-ifmib-oper-sub1 {

    yang-version 1;

    belongs-to
      Cisco-IOS-XR-snmp-ifmib-oper {
        prefix
          Cisco-IOS-XR-snmp-ifmib-oper;
    }

    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 snmp-ifmib package operational data.
     
     Copyright (c) 2013-2019 by Cisco Systems, Inc.
     All rights reserved.";

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

    revision "2015-01-07" {
      description "IOS XR 5.3.1 revision.";
    }

    semver:module-version "1.0.1";

    typedef Link-up-down-status {
      type enumeration {
        enum "enabled" {
          value 1;
          description
            "LinkUpDown notification is enabled";
        }
        enum "disabled" {
          value 2;
          description
            "LinkUpDown notification is disabled";
        }
      }
      description "Link up down status";
    }

    grouping IFMIB-IFSTACKSTATUS-ENTRY {
      description
        "IF-MIB ifStackStatus entry";
      leaf if-stack-higher-layer {
        type string;
        description "Higher Layer Index";
      }

      leaf if-stack-lower-layer {
        type string;
        description "Lowyer Layer Index";
      }

      leaf if-stack-status {
        type string;
        description
          "Interface ifStackStaus info";
      }
    }  // grouping IFMIB-IFSTACKSTATUS-ENTRY

    grouping IFMIB-NOTIF-STATUS-ENTRY {
      description
        "IF-MIB ifname ifindex entry";
      leaf link-up-down-notif-status {
        type Link-up-down-status;
        description
          "LinkUpDown notification status";
      }
    }  // grouping IFMIB-NOTIF-STATUS-ENTRY

    grouping IFMIB-IFALIAS-ENTRY {
      description "IF-MIB ifalias entry";
      leaf if-alias {
        type string;
        description "Interface ifAlias";
      }
    }  // grouping IFMIB-IFALIAS-ENTRY

    grouping IFMIB-IFCONNECTORPRESENT-ENTRY {
      description
        "IF-MIB ifConnectorPresent entry";
      leaf if-connector-present {
        type string;
        description "Interface ifConnector";
      }
    }  // grouping IFMIB-IFCONNECTORPRESENT-ENTRY

    grouping IFMIB-IFNAME-IFINDEX-ENTRY {
      description
        "IF-MIB ifname ifindex entry";
      leaf if-index {
        type uint32;
        description "Interface Index";
      }
    }  // grouping IFMIB-IFNAME-IFINDEX-ENTRY
  }  // submodule Cisco-IOS-XR-snmp-ifmib-oper-sub1