module Cisco-IOS-XR-ethernet-loopback-oper {

    yang-version 1;

    namespace
      "http://cisco.com/ns/yang/Cisco-IOS-XR-ethernet-loopback-oper";

    prefix ethernet-loopback-oper;

    import Cisco-IOS-XR-types {
      prefix xr;
    }
    import cisco-semver {
      prefix semver;
    }

    include Cisco-IOS-XR-ethernet-loopback-oper-sub1 {
      revision-date "2019-04-05";
    }

    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 module contains a collection of YANG definitions
     for Cisco IOS-XR ethernet-loopback package operational data.
     
     This module contains definitions
     for the following management objects:
       ethernet-loopback: Ethernet Loopback 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 "1.0.0";

    container ethernet-loopback {
      config false;
      description
        "Ethernet Loopback operational data.";
      container messages-interfaces {
        description
          "Container for loopback messages";
        list messages-interface {
          key "interface-name";
          description "Loopback messages";
          leaf interface-name {
            type xr:Interface-name;
            description "InterfaceName";
          }

          list message {
            description
              "Loopback messages information";
            leaf message-id {
              type uint32;
              description "The message ID";
            }

            leaf time {
              type uint32;
              description
                "Time the message was sent";
            }

            leaf direction {
              type Edpl-bag-message-dir;
              description
                "Was the message sent or received?";
            }

            leaf type {
              type Cfm-bag-ll;
              description
                "Loopback message type";
            }

            leaf interface {
              type string;
              description "Interface name";
            }

            leaf mac {
              type Mac-address;
              description
                "target/source mac for outgoing/incoming messages";
            }

            leaf mep {
              type uint16;
              description
                "target/source mep for outgoing/incoming messages";
            }

            leaf mep-specified {
              type boolean;
              description
                "MEP ID is specified";
            }

            leaf domain {
              type string;
              description
                "CFM domain on which the message was sent";
            }

            leaf service {
              type string;
              description
                "CFM service on which the message was sent";
            }

            leaf oam-level {
              type uint16;
              description
                "Indicates level of CFM domain";
            }

            leaf outer-type {
              type Edpl-bag-vlan;
              description
                "type of outer VLAN tag (dot1ad or dot1Q)";
            }

            leaf outer-vlanid {
              type uint16;
              description "Outer VLAN ID";
            }

            leaf outer-vlan-specified {
              type boolean;
              description
                "Outer VLAN ID specified";
            }

            leaf inner-vlanid {
              type uint16;
              description "Inner VLAN ID";
            }

            leaf inner-vlan-specified {
              type boolean;
              description
                "Inner VLAN ID specified";
            }

            leaf multicast {
              type boolean;
              description
                "Was the message sent multicast?";
            }

            leaf capabilities {
              type uint8;
              description
                "Flags specifying capabilities of sender";
            }

            leaf all-vlans {
              type boolean;
              description
                "Was all_vlans flag specified?";
            }

            leaf response-code {
              type uint8;
              description
                "Error code specified";
            }

            leaf status {
              type Edpl-bag-remote-session-status;
              description
                "Status of the loopback session";
            }

            leaf session-direction {
              type Edpl-bag-direction;
              description
                "Direction of the loopback session";
            }

            leaf timer {
              type uint32;
              units "second";
              description
                "Length of the expiration timer, in seconds";
            }
          }  // list message
        }  // list messages-interface
      }  // container messages-interfaces

      container permitted-interfaces {
        description
          "Container for interfaces on which Ethernet
         Loopback is permitted.";
        list permitted-interface {
          key "interface-name";
          description
            "Data for an interface permitted to use Ethernet
           Loopback.";
          leaf interface-name {
            type xr:Interface-name;
            description "InterfaceName";
          }

          leaf external {
            type boolean;
            description
              "TRUE if external loopback is permitted";
          }

          leaf internal {
            type boolean;
            description
              "TRUE if internal loopback is permitted";
          }

          leaf external-latching {
            type boolean;
            description
              "TRUE if external latching-loopback is permitted";
          }

          leaf internal-latching {
            type boolean;
            description
              "TRUE if internal latching-loopback is permitted";
          }

          leaf log-changes {
            type boolean;
            description
              "TRUE if log-changes are to be recorded";
          }

          leaf latching-loopback-controller {
            type boolean;
            description
              "TRUE if the latching loopback ctrlr is enabled";
          }
        }  // list permitted-interface
      }  // container permitted-interfaces

      container active-interfaces {
        description
          "Container for interfaces with active Ethernet
         Loopback sessions.";
        list active-interface {
          key "interface-name";
          description
            "Data for an interface with active Ethernet
           Loopback sessions.";
          leaf interface-name {
            type xr:Interface-name;
            description "InterfaceName";
          }

          list session {
            description
              "Session information";
            container outer-vlan-range {
              description "Outer VLAN range";
              list vlan-range {
                max-elements 10;
                description "VLAN range";
                leaf min {
                  type uint16;
                  description "Lowest value";
                }

                leaf max {
                  type uint16;
                  description
                    "Highest value";
                }
              }  // list vlan-range
            }  // container outer-vlan-range

            container inner-vlan-range {
              description "Inner VLAN range";
              list vlan-range {
                max-elements 10;
                description "VLAN range";
                leaf min {
                  type uint16;
                  description "Lowest value";
                }

                leaf max {
                  type uint16;
                  description
                    "Highest value";
                }
              }  // list vlan-range
            }  // container inner-vlan-range

            leaf session-id {
              type uint32;
              description "Session ID";
            }

            leaf direction {
              type Edpl-bag-direction;
              description
                "Loopback direction";
            }

            leaf session-type {
              type Edpl-bag-session;
              description
                "Loopback session type";
            }

            leaf meg-level {
              type uint16;
              description "MEG level";
            }

            leaf status {
              type Edpl-bag-status;
              description "Loopback status";
            }

            leaf outer-vlan-type {
              type Edpl-bag-vlan;
              description "Outer VLAN type";
            }

            leaf source-mac-address {
              type Mac-address;
              description
                "Source MAC address";
            }

            leaf destination-mac-address {
              type Mac-address;
              description
                "Destination MAC address";
            }

            leaf ether-type {
              type uint16;
              description "Ether type";
            }

            leaf cos {
              type uint8;
              description "Class of Service";
            }

            leaf llc-oui {
              type uint32;
              description "LLC OUI";
            }

            leaf timeout {
              type uint32;
              description
                "Timeout period (s)";
            }

            leaf time-left {
              type uint32;
              description "Time left (s)";
            }
          }  // list session
        }  // list active-interface
      }  // container active-interfaces
    }  // container ethernet-loopback
  }  // module Cisco-IOS-XR-ethernet-loopback-oper