module Cisco-IOS-XR-um-udp-cfg {

    yang-version 1;

    namespace
      "http://cisco.com/ns/yang/Cisco-IOS-XR-um-udp-cfg";

    prefix um-udp-cfg;

    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 module contains a collection of YANG definitions
     for Cisco IOS-XR udp package configuration.
     
     This YANG module augments the
     modules with configuration data.
     
     Copyright (c) 2020-2021 by Cisco Systems, Inc.
     All rights reserved.";

    revision "2021-01-11" {
      description "Initial release";
    }

    semver:module-version "1.0.0";

    container service {
      description
        "Modify use of network based services";
      container ipv4 {
        description "Ipv4 small servers";
        container udp-small-servers {
          description
            "Enable small UDP servers (e.g., ECHO)";
          leaf max-servers {
            type union {
              type enumeration {
                enum "no-limit" {
                  value 0;
                  description
                    "No limit to number of allowable UDP small servers";
                }
              }
              type uint32 {
                range "1..2147483647";
              }
            }
            description
              "Set number of allowable UDP small servers";
          }

          leaf access-list {
            type xr:Cisco-ios-xr-string {
              length "1..64";
            }
            must "../max-servers";
            description "Access list";
          }
        }  // container udp-small-servers
      }  // container ipv4

      container ipv6 {
        description "Ipv6 small servers";
        container udp-small-servers {
          description
            "Enable small UDP servers (e.g., ECHO)";
          leaf max-servers {
            type union {
              type enumeration {
                enum "no-limit" {
                  value 0;
                  description
                    "No limit to number of allowable UDP small servers";
                }
              }
              type uint32 {
                range "1..2147483647";
              }
            }
            description
              "Set number of allowable UDP small servers";
          }

          leaf access-list {
            type xr:Cisco-ios-xr-string {
              length "1..64";
            }
            must "../max-servers";
            description "Access list";
          }
        }  // container udp-small-servers
      }  // container ipv6
    }  // container service

    container udp {
      description
        "Global UDP configuration command";
      container directory {
        description
          "Specify debug directory location";
        leaf location {
          type string {
            length "1..256";
          }
          must "../files and ../size";
          description
            "Place debug files in this directory";
        }

        leaf files {
          type uint32 {
            range "1..5000";
          }
          must "../location and ../size";
          description
            "Set maximum debug files";
        }

        leaf size {
          type uint32 {
            range "1024..4294967295";
          }
          must "../location and ../files";
          description
            "Set maximum file size";
        }
      }  // container directory

      leaf receive-queue {
        type uint32 {
          range "40..800";
        }
        description
          "UDP receive packet queue size";
      }

      leaf num-thread {
        type uint32 {
          range "1..16";
        }
        must "../max-threads";
        description
          "Set number of threads (takes effect only on process restart)";
      }

      leaf max-threads {
        type uint32 {
          range "1..16";
        }
        must "../num-thread";
        description
          "max threads in thread pool created by UDP (default: 8)";
      }
    }  // container udp

    container forward-protocol {
      description
        "Controls forwarding of physical and directed IP broadcasts";
      container udp {
        description
          "Packets to a specific UDP port";
        container disable {
          presence
            "Indicates a disable node is configured.";
          description
            "Disable IP Forward Protocol UDP";
        }  // container disable

        container domain {
          description
            "Domain Name Service (DNS, 53)";
          container disable {
            presence
              "Indicates a disable node is configured.";
            description
              "Disable IP Forward Protocol UDP for a specific port";
          }  // container disable
        }  // container domain

        container nameserver {
          description
            "IEN116 name service (obsolete, 42)";
          container disable {
            presence
              "Indicates a disable node is configured.";
            description
              "Disable IP Forward Protocol UDP for a specific port";
          }  // container disable
        }  // container nameserver

        container netbios-dgm {
          description
            "NetBios datagram service (138)";
          container disable {
            presence
              "Indicates a disable node is configured.";
            description
              "Disable IP Forward Protocol UDP for a specific port";
          }  // container disable
        }  // container netbios-dgm

        container netbios-ns {
          description
            "NetBios name service (137)";
          container disable {
            presence
              "Indicates a disable node is configured.";
            description
              "Disable IP Forward Protocol UDP for a specific port";
          }  // container disable
        }  // container netbios-ns

        container tacacs {
          description
            "TAC Access Control System (49)";
          container disable {
            presence
              "Indicates a disable node is configured.";
            description
              "Disable IP Forward Protocol UDP for a specific port";
          }  // container disable
        }  // container tacacs

        container tftp {
          description
            "Trivial File Transfer Protocol (69)";
          container disable {
            presence
              "Indicates a disable node is configured.";
            description
              "Disable IP Forward Protocol UDP for a specific port";
          }  // container disable
        }  // container tftp

        container ports {
          description
            "Packets to a specific UDP port";
          list port {
            key "port-number";
            description
              "Packets to a specific UDP port";
            leaf port-number {
              type uint32 {
                range "1..65535";
              }
              description "Port number";
            }
          }  // list port
        }  // container ports
      }  // container udp
    }  // container forward-protocol
  }  // module Cisco-IOS-XR-um-udp-cfg