submodule Cisco-IOS-XR-ethernet-link-oam-oper-sub1 {

    yang-version 1;

    belongs-to
      Cisco-IOS-XR-ethernet-link-oam-oper {
        prefix
          Cisco-IOS-XR-ethernet-link-oam-oper;
    }

    import ietf-yang-types {
      prefix yang;
    }
    import Cisco-IOS-XR-types {
      prefix xr;
    }
    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 ethernet-link-oam package operational data.
     
     Copyright (c) 2013-2019 by Cisco Systems, Inc.
     All rights reserved.";

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

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

    semver:module-version "1.0.1";

    typedef Log-location {
      type enumeration {
        enum "log-location-local" {
          value 1;
          description "A local event";
        }
        enum "log-location-remote" {
          value 2;
          description "A remote event";
        }
      }
      description
        "The location of the event that caused a log entry";
    }

    typedef Log {
      type enumeration {
        enum "log-type-symbol-event" {
          value 1;
          description
            "Log entry for an errored symbol event";
        }
        enum "log-type-period-event" {
          value 2;
          description
            "Log entry for an errored frame period event";
        }
        enum "log-type-frame-event" {
          value 3;
          description
            "Log entry for an errored frame event";
        }
        enum "log-type-secs-event" {
          value 4;
          description
            "Log entry for an errored frame seconds summary
           event";
        }
        enum "log-type-link-fault" {
          value 256;
          description
            "Log entry for a link fault";
        }
        enum "log-type-dying-gasp" {
          value 257;
          description
            "Log entry for a dying gasp";
        }
        enum "log-type-critical-event" {
          value 258;
          description
            "Log entry for a critical event";
        }
      }
      description "The type of a log entry";
    }

    typedef Action {
      type enumeration {
        enum "no-action" {
          value 1;
          description
            "Disabled (do nothing)";
        }
        enum "disable-interface" {
          value 2;
          description
            "Disable the interface";
        }
        enum "log" {
          value 3;
          description
            "Log the event and do nothing else";
        }
        enum "efd" {
          value 4;
          description "EFD the interface";
        }
      }
      description
        "Actions supported by an OAM interface";
    }

    typedef Protocol-state {
      type enumeration {
        enum "protocol-state-inactive" {
          value 0;
          description
            "The protocol is in the INACTIVE state";
        }
        enum "protocol-state-fault" {
          value 1;
          description
            "The protocol is in the FAULT state";
        }
        enum
          "protocol-state-active-send-local" {
          value 2;
          description
            "The protocol is in the ACTIVE_SEND_LOCAL state";
        }
        enum "protocol-state-passive-wait" {
          value 3;
          description
            "The protocol is in the SEND_LOCAL_REMOTE state";
        }
        enum
          "protocol-state-send-local-remote" {
          value 4;
          description
            "The protocol is in the LOCAL_REMOTE state";
        }
        enum
          "protocol-state-send-local-remote-ok" {
          value 5;
          description
            "The protocol is in the LOCAL_REMOTE_OK state";
        }
        enum "protocol-state-send-any" {
          value 6;
          description
            "The protocol is in the SEND_ANY state";
        }
      }
      description
        "The state the protocol is in";
    }

    typedef Mode {
      type enumeration {
        enum "passive" {
          value 0;
          description "Passive mode";
        }
        enum "active" {
          value 1;
          description "Active mode";
        }
        enum "dont-care" {
          value 2;
          description
            "Don't care what the mode is";
        }
      }
      description "Mode of an OAM interface";
    }

    typedef Loopback-status {
      type enumeration {
        enum "none" {
          value 1;
          description
            "Loopback is not being performed";
        }
        enum "initiating" {
          value 2;
          description
            "Initiating master loopback";
        }
        enum "master-loopback" {
          value 3;
          description
            "In master loopback mode";
        }
        enum "terminating" {
          value 4;
          description
            "Terminating master loopback mode";
        }
        enum "local-loopback" {
          value 5;
          description
            "In slave loopback mode";
        }
        enum "unknown" {
          value 6;
          description
            "Parser and multiplexer combination unexpected";
        }
      }
      description
        "The loopback mode of an OAM interface";
    }

    typedef Operational-state {
      type enumeration {
        enum "disabled" {
          value 1;
          description
            "802.3 OAM is disabled";
        }
        enum "link-fault" {
          value 2;
          description
            "802.3 OAM has encountered a link fault";
        }
        enum "passive-wait" {
          value 3;
          description
            "Passive OAM entity waiting to see if peer is
           OAM capable";
        }
        enum "active-send-local" {
          value 4;
          description
            "Active OAM entity trying to determine if peer
           is OAM capable";
        }
        enum "send-local-and-remote" {
          value 5;
          description
            "OAM discovered peer but still to accept or
           reject peer config";
        }
        enum "send-local-and-remote-ok" {
          value 6;
          description
            "OAM peering is allowed by local device";
        }
        enum "peering-locally-rejected" {
          value 7;
          description
            "OAM peering rejected by local device";
        }
        enum "peering-remotely-rejected" {
          value 8;
          description
            "OAM peering rejected by remote device";
        }
        enum "operational" {
          value 9;
          description
            "802.3 OAM is operational";
        }
        enum "operational-half-duplex" {
          value 10;
          description
            "802.3 OAM is operating in half-duplex mode";
        }
      }
      description
        "Operational state of an interface";
    }
  }  // submodule Cisco-IOS-XR-ethernet-link-oam-oper-sub1