module Cisco-IOS-XR-ipv6-nd-subscriber-cfg {

    yang-version 1;

    namespace
      "http://cisco.com/ns/yang/Cisco-IOS-XR-ipv6-nd-subscriber-cfg";

    prefix ipv6-nd-subscriber-cfg;

    import Cisco-IOS-XR-types {
      prefix xr;
    }
    import cisco-semver {
      prefix semver;
    }
    import Cisco-IOS-XR-subscriber-infra-tmplmgr-cfg {
      prefix a1;
    }

    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 ipv6-nd-subscriber package configuration.
     
     This YANG module augments the
       Cisco-IOS-XR-subscriber-infra-tmplmgr-cfg
     module with configuration data.
     
     Copyright (c) 2013-2019 by Cisco Systems, Inc.
     All rights reserved.";

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

    revision "2016-12-19" {
      description "IOS XR 6.2.1 revision.";
    }

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

    semver:module-version "1.0.0";

    typedef Ipv6-nd-router-pref-template {
      type enumeration {
        enum "high" {
          value 1;
          description "High preference";
        }
        enum "medium" {
          value 2;
          description "Medium preference";
        }
        enum "low" {
          value 3;
          description "Low preference";
        }
      }
      description
        "Ipv6 nd router pref template";
    }

    grouping IPV6-NEIGHBOR {
      description
        "Common node of ip-subscriber, ppp,
       subscriber-service";
      container ipv6-neighbor {
        description
          "Interface IPv6 Network configuration data";
        container ra-interval {
          presence
            "Indicates a ra-interval node is configured.";
          description
            "Set IPv6 Router Advertisement (RA) interval in
           seconds";
          leaf maximum {
            type uint32 {
              range "4..1800";
            }
            units "second";
            mandatory true;
            description
              "Maximum RA interval in seconds";
          }

          leaf minimum {
            type uint32 {
              range "3..1800";
            }
            units "second";
            description
              "Minimum RA interval in seconds. Must be less
             than 0.75 * maximum interval";
          }
        }  // container ra-interval

        container framed-prefix {
          presence
            "Indicates a framed-prefix node is configured.";
          description
            "Set the IPv6 framed ipv6 prefix for a
           subscriber interface ";
          leaf prefix-length {
            type xr:Ipv6-prefix-length;
            mandatory true;
            description
              "IPv6 framed prefix length";
          }

          leaf prefix {
            type string;
            mandatory true;
            description
              "IPV6 framed prefix address";
          }
        }  // container framed-prefix

        container duplicate-address-detection {
          description
            "Duplicate Address Detection (DAD)";
          leaf attempts {
            type uint32 {
              range "0..600";
            }
            description
              "Set IPv6 duplicate address detection transmits";
          }
        }  // container duplicate-address-detection

        container ra-initial {
          presence
            "Indicates a ra-initial node is configured.";
          description "IPv6 ND RA Initial";
          leaf count {
            type uint32 {
              range "0..32";
            }
            mandatory true;
            description "Initial RA count";
          }

          leaf interval {
            type uint32 {
              range "4..1800";
            }
            units "second";
            mandatory true;
            description
              "Initial RA interval in seconds";
          }
        }  // container ra-initial

        leaf framed-prefix-pool {
          type string;
          description
            "Set the IPv6 framed ipv6 prefix pool for a
           subscriber interface ";
        }

        leaf managed-config {
          type empty;
          description
            "Host to use stateful protocol for address
           configuration";
        }

        leaf other-config {
          type empty;
          description
            "Host to use stateful protocol for non-address
           configuration";
        }

        leaf start-ra-on-ipv6-enable {
          type empty;
          description
            "Start RA on ipv6-enable config";
        }

        leaf nud-enable {
          type empty;
          description "NUD enable";
        }

        leaf ra-lifetime {
          type uint32 {
            range "0..9000";
          }
          units "second";
          description
            "Set IPv6 Router Advertisement (RA) lifetime in
           seconds";
        }

        leaf router-preference {
          type Ipv6-nd-router-pref-template;
          description "RA Router Preference";
        }

        leaf ra-suppress {
          type empty;
          description
            "Enable suppress IPv6 router advertisement";
        }

        leaf ra-unicast {
          type empty;
          description
            "Enable RA unicast Flag";
        }

        leaf ra-unspecify-hoplimit {
          type empty;
          description
            "Unspecify IPv6 Router Advertisement (RA)
           hop-limit";
        }

        leaf ra-suppress-mtu {
          type empty;
          description "RA suppress MTU flag";
        }

        leaf suppress-cache-learning {
          type empty;
          description
            "Suppress cache learning flag";
        }

        leaf reachable-time {
          type uint32 {
            range "0..3600000";
          }
          units "millisecond";
          description
            "Set advertised reachability time in
           milliseconds";
        }

        leaf ns-interval {
          type uint32 {
            range "1000..4294967295";
          }
          units "millisecond";
          description
            "Set advertised NS retransmission interval in
           milliseconds";
        }
      }  // container ipv6-neighbor
    }  // grouping IPV6-NEIGHBOR

    augment /a1:dynamic-template/a1:subscriber-services/a1:subscriber-service {
      description
        "This augment extends the configuration data of
       'Cisco-IOS-XR-subscriber-infra-tmplmgr-cfg'";
      uses IPV6-NEIGHBOR;
    }

    augment /a1:dynamic-template/a1:ppps/a1:ppp {
      description
        "This augment extends the configuration data of
       'Cisco-IOS-XR-subscriber-infra-tmplmgr-cfg'";
      uses IPV6-NEIGHBOR;
    }

    augment /a1:dynamic-template/a1:ip-subscribers/a1:ip-subscriber {
      description
        "This augment extends the configuration data of
       'Cisco-IOS-XR-subscriber-infra-tmplmgr-cfg'";
      uses IPV6-NEIGHBOR;
    }
  }  // module Cisco-IOS-XR-ipv6-nd-subscriber-cfg