submodule Cisco-IOS-XR-tty-management-oper-sub1 {

    yang-version 1;

    belongs-to
      Cisco-IOS-XR-tty-management-oper {
        prefix
          Cisco-IOS-XR-tty-management-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 tty-management package operational data.
     
     Copyright (c) 2013-2019 by Cisco Systems, Inc.
     All rights reserved.";

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

    revision "2017-05-01" {
      description
        "Fixing backward compatibility error in module.";
    }

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

    semver:module-version "1.0.1";

    identity Host-af-id-base {
      description
        "Base identity for Host-af-id";
    }

    identity ipv4 {
      base Host-af-id-base;
      description "IPv4 family";
    }

    identity ipv6 {
      base Host-af-id-base;
      description "IPv6 family";
    }

    typedef Transport-service {
      type enumeration {
        enum "unknown" {
          value 0;
          description "Unknown service";
        }
        enum "telnet" {
          value 1;
          description "Telnet";
        }
        enum "rlogin" {
          value 2;
          description "Remote login";
        }
        enum "ssh" {
          value 3;
          description "SSH";
        }
      }
      description
        "Transport service protocol";
    }

    typedef Ipv6-address {
      type inet:ipv6-address;
      description "Ipv6 address";
    }

    typedef Host-af-id {
      type identityref {
        base Host-af-id-base;
      }
      description
        "Host address family types";
    }
  }  // submodule Cisco-IOS-XR-tty-management-oper-sub1