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NVO3 WG                                                      Fangwei. Hu
Internet-Draft                                                 Ran. Chen
Intended status: Standards Track                         ZTE Corporation
Expires: June 29, 2017                                Mallik. Mahalingam
                                                              Springpath
                                                               Qiang. Zu
                                                                Ericsson
                                                               S. Davari
                                                                   yahoo
                                                                  X. Liu
                                                                   Jabil
                                                       December 26, 2016


                   YANG Data Model for VxLAN Protocol
                   draft-chen-nvo3-vxlan-yang-04.txt

Abstract

   This document defines a YANG data model for VxLAN protocol.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on June 29, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect



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   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  YANG Data Model for VxLAN Configuration . . . . . . . . . . .   2
     3.1.  VxLAN Multicast IP Address  . . . . . . . . . . . . . . .   2
     3.2.  VxLAN Access Type . . . . . . . . . . . . . . . . . . . .   2
     3.3.  Inner VLAN Tag Handling Mode  . . . . . . . . . . . . . .   3
   4.  Design Tree of Configuration Data Model . . . . . . . . . . .   3
   5.  Design Tree of Operational State Model  . . . . . . . . . . .   5
   6.  VxLAN YANG Model  . . . . . . . . . . . . . . . . . . . . . .   5
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  17
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   10. Normative References  . . . . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Introduction

   YANG[RFC6020]is a data definition language that was introduced to
   define the contents of a conceptual data store that allows networked
   devices to be managed using NETCONF [RFC6241].  This document defines
   a YANG data model for the configuration of VxLAN protocol [RFC7348].

2.  Terminology

3.  YANG Data Model for VxLAN Configuration

3.1.  VxLAN Multicast IP Address

   The vxlan-multicast-ip is used to configure the IP multicast group,
   which the VxLAN VNI of the VTEP is mapping to.  Both the IPv4 and
   IPv6 address family are supported.

3.2.  VxLAN Access Type

   There are several access types supported for VxLAN:

   o  vlan-1:1: the vxlan access type is VLAN, and each VxLAN is only
      mapping to one VLAN.

   o  vlan- n:1: the vxlan access type is VLAN, and each VxLAN could be
      mapped to several VLANs.



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   o  L3-interface: the VxLAN access type is layer 3 interface.

   o  mac: the VxLAN access type is MAC address.

   o  vlan-l2-interface: the VxLAN access type is VLAN plus Layer 2
      interface.

3.3.  Inner VLAN Tag Handling Mode

   There are two handling modes for the inner VLAN tag: discard-inner-
   vlan mode and no-discard-inner-vlan mode.  If the VTEP interface
   works in the discard-inner-vlan mode, the VxLAN is only mapped to one
   VLAN.  The inner VLAN tag will be stripped when encapsulating the
   VxLAN frame.  On the decapsulation side, if VTEP receives the VxLAN
   frame with inner VLAN tag, it will discard the frame in this work
   mode.  If the VTEP receives the VxLAN frame without VLAN tag, it will
   fill in the VLAN tag based on the VxLAN and VLAN mapping.

   If the VTEP interface works in the no-discard-inner-vlan mode, the
   VxLAN could be mapped to several VLANs.  The inner VLAN tag will not
   stripped when encapsulating the VxLAN frame in the VxLAN
   encapsulation side.  On the decapsulation side, if VTEP receives the
   VxLAN frame, it will strip the VxLAN header, and keep the VLAN frame.

4.  Design Tree of Configuration Data Model

module: ietf-vxlan
    +--rw vxlan
    |  +--rw global-enable?    empty
    |  +--rw vxlan-instance* [vxlan-id]
    |     +--rw vxlan-id                   vxlan-id
    |     +--rw description?               string
    |     +--rw unknow-unicast-drop?       enumeration
    |     +--rw filter-vrrp?               enumeration
    |     +--rw (vxlan-access-types)? {vxlan-access-types}?
    |     |  +--:(access-type-vlan)
    |     |  |  +--rw access-type-vlan?          access-type-vlan
    |     |  |  +--rw access-vlan-list* [vlan-id]
    |     |  |     +--rw vlan-id    vlan
    |     |  +--:(access-type-mac)
    |     |  |  +--rw access-type-mac?           empty
    |     |  |  +--rw mac                        yang:mac-address
    |     |  +--:(access-type-l2interface)
    |     |  |  +--rw access-type-l2interface?   empty
    |     |  |  +--rw vlan-id                    vlan
    |     |  |  +--rw interface-name             if:interface-ref
    |     |  +--:(access-type-l3interface)
    |     |     +--rw access-type-l3interface?   empty



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    |     |     +--rw map-l3interface* [interface-name]
    |     |        +--rw interface-name    if:interface-ref
    |     +--rw vtep-instances* [vtep-id]
    |     |  +--rw vtep-id                     uint32
    |     |  +--rw vtep-name?                  string
    |     |  +--rw source-interface?           if:interface-ref
    |     |  +--rw multicast-ip                inet:ip-address
    |     |  +--rw mtu?                        uint32 {mtu}?
    |     |  +--rw inner-vlan-handling-mode?   inner-vlan-handling-mode
    |     |  +--rw bind-vxlan-id* [vxlan-id]
    |     |     +--rw vxlan-id    vxlan-id
    |     +--rw static-vxlan-tunnel* [vxlan-tunnel-id]
    |     |  +--rw vxlan-tunnel-id      uint32
    |     |  +--rw vxlan-tunnel-name?   string
    |     |  +--rw address-family* [af]
    |     |     +--rw af                       address-family-type
    |     |     +--rw tunnel-source-ip?        address-family-type
    |     |     +--rw tunnel-destination-ip?   address-family-type
    |     |     +--rw bind-vxlan-id* [vxlan-id]
    |     |        +--rw vxlan-id    vxlan-id
    |     +--rw redundancy-group-binds
    |        +--rw redundancy-group-bind* [vxlan-id redundancy-group]
    |           +--rw vxlan-id            uint32
    |           +--rw redundancy-group    uint32
    +--ro vxlan-state
       +--ro vxlan
          +--ro vxlan-tunnels
             +--ro vxlan-tunnel* [local-ip remote-ip]
                +--ro local-ip            address-family-type
                +--ro remote-ip           address-family-type
                +--ro static-tunnel-id?   uint32
                +--ro evpn-tunnel-id?     uint32
                +--ro statistics
                   +--ro tunnel-statistics
                   |  +--ro in-bytes?      string
                   |  +--ro out-bytes?     string
                   |  +--ro in-packets?    string
                   |  +--ro out-packets?   string
                   +--ro tunnel-vni-statistics
                      +--ro tunnel-vni-statistic* [vxlan-id]
                         +--ro vxlan-id       uint32
                         +--ro in-bytes?      string
                         +--ro out-bytes?     string
                         +--ro in-packets?    string
                         +--ro out-packets?   string

  augment /evpn:evpn/evpn:evpn-instances/evpn:evpn-instance/evpn:bgp-parameters/evpn:common:
    +--rw bgp-parameters



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       +--rw common
          +--rw rd-rt* [route-distinguisher]
             +--rw route-distinguisher    string
             +--rw vpn-target* [rt-value]
                +--rw rt-value    string
                +--rw rt-type     bgp-rt-type



5.  Design Tree of Operational State Model

          +--ro vxlan-state
             +--ro vxlan
                +--ro vxlan-tunnels
                   +--ro vxlan-tunnel* [local-ip remote-ip]
                      +--ro local-ip            address-family-type
                      +--ro remote-ip           address-family-type
                      +--ro static-tunnel-id?   uint32
                      +--ro evpn-tunnel-id?     uint32
                      +--ro statistics
                         +--ro tunnel-statistics
                         |  +--ro in-bytes?      string
                         |  +--ro out-bytes?     string
                         |  +--ro in-packets?    string
                         |  +--ro out-packets?   string
                         +--ro tunnel-vni-statistics
                            +--ro tunnel-vni-statistic* [vxlan-id]
                               +--ro vxlan-id       uint32
                               +--ro in-bytes?      string
                               +--ro out-bytes?     string
                               +--ro in-packets?    string
                               +--ro out-packets?   string



6.  VxLAN YANG Model


<CODE BEGINS> file "ietf-vxlan@2016-12-08.yang"
module ietf-vxlan {
    namespace "urn:ietf:params:xml:ns:yang:ietf-vxlan";
    prefix "vxlan";

     import ietf-evpn {
       prefix "evpn";
     }

    import ietf-interfaces {



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      prefix "if";
     }

    import ietf-inet-types {
       prefix "inet";
     }

    import ietf-yang-types {
       prefix yang;
     }

    organization
      "IETF NVO3(Network Virtualization Overlays) Working Group";

      contact
       "
         WG List:  <mailto:nvo3@ietf.org>

         WG Chair: Matthew Bocci
                  <mailto:matthew.bocci@alcatel-lucent.com>

         WG Chair: Benson Schliesser
                  <mailto:bensons@queuefull.net>

         Editor:   Fangwei Hu
                   <mailto:hu.fangwei@zte.com.cn>

         Editor:   Ran Chen
                   <mailto:chen.ran@zte.com.cn>

         Editor:   Mallik Mahalingam
                   <mailto:mallik_mahalingam@yahoo.com>

         Editor:   Zu Qiang
                   <mailto:Zu.Qiang@Ericsson.com>
        ";

    description
       "The YANG module defines a generic configuration
         model for VxLAN protocol";

    revision 2016-12-08 {
      description "updated the vxlan yang model based on the comments from IETF 97th meeting,"
       +"augmenting EVPN data model, adding access type configuration and MTU configuration.";
      reference
         "draft-chen-nvo3-vxlan-yang-04";
    }




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    revision 2016-06-02 {
       description
         "03 revision. Update the YANG data model based on thec comments of IETF 95th meeting.";
       reference
         "draft-chen-nvo3-vxlan-yang-03";
     }

    revision 2015-12-01 {
       description
         "02 revision.";
       reference
         "draft-chen-nvo3-vxlan-yang-02";
     }

    revision 2015-10-12 {
       description
         "01 revision.";
       reference
         "draft-chen-nvo3-vxlan-yang-01";
     }

    revision 2015-05-05 {
      description "Initial revision";
      reference
         "draft-chen-nvo3-vxlan-yang-00";
    }

    /* Feature  */

    feature vxlan-access-types {
       description
         "Support configuration vxlan access types.";
     }

    feature mtu {
        description
         "Support configuration vxlan MTU value.";
    }

    feature evpn-bgp-params {
       description "Support EVPN BGP parameter.";
      }

    /* Typedefs  */

    typedef vlan {
      type uint16 {
        range 1..4094;



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      }
      description
      "Typedef for VLAN";
    }

    typedef vxlan-id {
      type uint32;
      description
        "Typedef for VxLAN ID.";
    }
      typedef access-type-vlan {
      type enumeration {
        enum access-type-vlan1to1 {
          description
            "Access type is VLAN 1:1.";
        }
        enum access-type-vlan1ton {
          description
            "Access type is VLAN 1:n.";
        }

      }
      default access-type-vlan1to1 ;
      description
        "VxLAN access type is VLAN.";
    }

    typedef access-type-mac {
       type empty ;
       description
         "VxLAN access type is MAC.";
    }


    typedef inner-vlan-handling-mode {
       type enumeration {
         enum discard-inner-vlan {
              description
                "Discard inner-VLAN.";
         }
         enum no-discard-inner-vlan {
              description
                "No discard inner-VLAN.";
         }
       }
       default discard-inner-vlan ;
       description
        "Typedef for inner-vlan-handling-mode";



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    }

    typedef address-family-type {
       type enumeration {
         enum ipv4 {
           description
             "IPv4";
         }
         enum ipv6 {
           description
             "IPv6";
         }
       }
       description
         "Typedef for address family type.";
     }

    /* Configuration Data */

      container vxlan{
        leaf global-enable {
          type empty ;
          description 'VXLAN global enble.';
        }

        list vxlan-instance {
           key vxlan-id ;
           leaf vxlan-id {
             type vxlan-id;
             description "VxLAN ID.";
           }

           leaf description {
            type string {
              length 0..64 {
                description 'VXLAN instance description information.';
              }
            }
            description 'The description information of VXLAN instance.';
           }

           leaf unknow-unicast-drop {
            type enumeration {
              enum enable {
                value 1 ;
                description 'Unknown unicast drop enable.';
              }
              enum disable {



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                value 2 ;
                description 'Unknown unicast drop disable.';
              }
            }
            default enable ;
            description 'Unknow unicast drop configuration of VXLAN instance.';
          }

           leaf filter-vrrp {
             type enumeration {
              enum enable {
                value 1 ;
                description 'VRRP packets filter.';
              }
              enum disable {
                value 2 ;
                description 'VRRP packets not filter.';
              }
            }
            default enable ;
            description 'VRRP packets filter configuration of VXLAN instance.';
           }

           choice vxlan-access-types {
             if-feature  vxlan-access-types;
              case access-type-vlan {

                leaf access-type-vlan {
                  type access-type-vlan;

                  description
                     "Access type is VLAN.";
                }

                list access-vlan-list {
                  key vlan-id ;
                  leaf vlan-id {
                    type vlan;
                    description
                      "VLAN ID.";
                  }
                  description
                    "VLAN ID list." ;
                }
                  description
                    "VxLAN access type choice is VLAN.";
              }




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              case access-type-mac {
                leaf access-type-mac {
                  type empty ;
                  description
                    "Access type is MAC.";
                }

                leaf mac {
                    type yang:mac-address ;
                    mandatory true ;
                    description
                      "MAC Address.";
                  }
                description
                  "VxLAN access type choice is MAC Address.";
              }

              case access-type-l2interface {
                leaf access-type-l2interface {
                  type empty ;
                  description
                    "VXLAN map layer two interface.";
                }

                leaf vlan-id {
                    type vlan;
                    mandatory true ;
                    description
                      "VLAN ID.";
                 }

                leaf interface-name {
                    type if:interface-ref;
                    mandatory true ;
                    description
                      "Layer two interface name.";
                }
                description
                  "VxLAN access type choice is layer two interface.";
              }

              case access-type-l3interface {
                leaf access-type-l3interface {
                  type empty ;
                  description
                    "Access type of VxLAN is layer three interface.";
                }




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                list map-l3interface {
                  key interface-name ;
                  leaf interface-name {
                    type if:interface-ref;
                    description
                      "Layer three interface name.";
                  }
                  description
                     "Layer three interface list.";
                }
                description
                  "VxLAN access type choice is layer three interface.";
              }
              description
                 "VxLAN access type choice.";
            }

        list vtep-instances {
            key vtep-id ;
            leaf vtep-id {
               type uint32;
               description
               "VTEP ID.";
            }

            leaf vtep-name{
               type string;
               description
                "VTEP instance name.";
            }

            leaf source-interface {
               type if:interface-ref;
               description
                     "Source interface name.";
            }

            leaf multicast-ip {
                type inet:ip-address;
                mandatory true ;
                description
                  "VxLAN multicast IP address.";
            }

            leaf mtu {
              if-feature mtu;
              type uint32;
              description "vxlan mtu";



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            }

            leaf inner-vlan-handling-mode {
                type inner-vlan-handling-mode;
                description
                   "The inner vlan tag handling mode.";
            }

            list bind-vxlan-id {
                key vxlan-id;
                leaf vxlan-id {
                  type vxlan-id;
                  description
                       "VxLAN ID.";
                }
                description
                  "VxLAN ID list for the VTEP.";
            }
            description
                "VTEP instance.";
        }

        list static-vxlan-tunnel{
            key vxlan-tunnel-id;
            leaf vxlan-tunnel-id {
               type uint32;
               description
                     "Static VxLAN tunnel ID.";
            }

            leaf vxlan-tunnel-name {
               type string;
               description
               "Name of the static VxLAN tunnel.";
            }

            list address-family {
               key "af";
               leaf af {
                 type address-family-type;
                 description
                 "Address family type value.";
               }

               leaf tunnel-source-ip {
                 type address-family-type;
                 description
                 "Source IP address for the static VxLAN tunnel";



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               }

               leaf tunnel-destination-ip {
                  type address-family-type;
                  description
                   "Destination IP address for the static VxLAN tunnel";
               }

               list bind-vxlan-id {
                  key vxlan-id;
                  leaf vxlan-id {
                    type vxlan-id;
                    description
                       "VxLAN ID.";
                  }
                  description
                     "VxLAN ID list for the VTEP.";
               }

                description
                   "Per-af params.";
             }
            description
              "Configure the static VxLAN tunnel";
        }

        container redundancy-group-binds {
           list redundancy-group-bind {
              key 'vxlan-id redundancy-group';
              leaf vxlan-id {
                type uint32 {
                  range 1..16777215 {
                    description 'The value of VXLAN,it must between 1 to 16777215.';
                  }
                }
                description 'VXLAN ID binding by redundancy group.';
              }

              leaf redundancy-group {
                type uint32 {
                   range 1..4294967293 {
                      description 'The value of redundancy group,it must between 1 to'
                          + ' 4294967293.';
                    }
                }
                description 'Redundancy group ID.';
              }
              description 'Redundancy group bind table.';



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           }
           description 'Redundancy group bind table.';
        }
        description "vxlan instance list";
     }
     description
       "VxLAN configure model.";
    }


    augment "/evpn:evpn/evpn:evpn-instances/evpn:evpn-instance"
         +"/evpn:bgp-parameters/evpn:common" {

     uses evpn:bgp-parameters-grp {
       if-feature evpn-bgp-params;
      }
      description "EVPN configuration";
     }

      /* Operational  data */
    container vxlan-state{
      config false;
      container vxlan {
        container vxlan-tunnels {
          list vxlan-tunnel {
             key 'local-ip remote-ip';
             leaf local-ip {
               type address-family-type ;
               description 'Local IP of tunnel.';
             }

             leaf remote-ip {
               type address-family-type ;
               description 'Remote IP of tunnel.';
             }

             leaf static-tunnel-id {
               type uint32 ;
               description 'Static tunnel ID.';
             }

             leaf evpn-tunnel-id {
               type uint32 ;
               description 'EVPN tunnel ID.';
             }

            container statistics {
               container tunnel-statistics {



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                 leaf in-bytes {
                    type string {
                      length 0..24 ;
                    }
                    description 'Total bytes received.';
                 }

                 leaf out-bytes {
                   type string {
                     length 0..24 ;
                   }
                   description 'Total bytes sent.';
                 }

                 leaf in-packets {
                   type string {
                      length 0..24;
                   }
                   description 'Total packets received.';
                 }

                 leaf out-packets {
                   type string {
                     length 0..24 ;
                   }
                   description 'Total packets sent.';
                 }
                 description 'Total tunnel statistics.';
              }

              container tunnel-vni-statistics {
               list tunnel-vni-statistic {
                key vxlan-id ;
                leaf vxlan-id {
                  type uint32 ;
                  description 'The VXLAN in tunnel.';
                }

                leaf in-bytes {
                  type string {
                    length 1..24 ;
                  }
                  description 'Total bytes received.';
                }

                leaf out-bytes {
                  type string {
                    length 1..24 ;



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                  }
                  description 'Total bytes sent.';
                }

                leaf in-packets {
                  type string {
                    length 1..24 ;
                  }
                  description 'Total packets received.';
                }

                leaf out-packets {

                  type string {
                    length 1..24 ;
                  }
                  description 'Total packets sent.';
                }
                description 'Statistics in VXLAN tunnel.';
              }
              description 'Statistics in VXLAN tunnel.';
            }
             description 'Tunnel statistics.' ;
          }
            description 'VXLAN tunnel info.';
        }
          description 'VXLAN tunnel Info.';
      }
      description 'Information of VXLAN state.';
    }
    description 'Information of VXLAN state.';
   }
  }
 <CODE ENDS>


7.  Security Considerations

8.  Acknowledgements

9.  IANA Considerations

   This document requires no IANA Actions.  Please remove this section
   before RFC publication.







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10.  Normative References

   [RFC6020]  Bjorklund, M., Ed., "YANG - A Data Modeling Language for
              the Network Configuration Protocol (NETCONF)", RFC 6020,
              DOI 10.17487/RFC6020, October 2010,
              <http://www.rfc-editor.org/info/rfc6020>.

   [RFC6241]  Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
              and A. Bierman, Ed., "Network Configuration Protocol
              (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
              <http://www.rfc-editor.org/info/rfc6241>.

   [RFC6991]  Schoenwaelder, J., Ed., "Common YANG Data Types",
              RFC 6991, DOI 10.17487/RFC6991, July 2013,
              <http://www.rfc-editor.org/info/rfc6991>.

   [RFC7223]  Bjorklund, M., "A YANG Data Model for Interface
              Management", RFC 7223, DOI 10.17487/RFC7223, May 2014,
              <http://www.rfc-editor.org/info/rfc7223>.

   [RFC7348]  Mahalingam, M., Dutt, D., Duda, K., Agarwal, P., Kreeger,
              L., Sridhar, T., Bursell, M., and C. Wright, "Virtual
              eXtensible Local Area Network (VXLAN): A Framework for
              Overlaying Virtualized Layer 2 Networks over Layer 3
              Networks", RFC 7348, DOI 10.17487/RFC7348, August 2014,
              <http://www.rfc-editor.org/info/rfc7348>.

Authors' Addresses

   Fangwei Hu
   ZTE Corporation
   No.889 Bibo Rd
   Shanghai  201203
   China

   Phone: +86 21 68896273
   Email: hu.fangwei@zte.com.cn


   Ran Chen
   ZTE Corporation
   No.50 Software Avenue,Yuhuatai District
   Nanjing, Jiangsu Province  210012
   China

   Phone: +86 025 88014636
   Email: chen.ran@zte.com.cn




Hu, et al.                Expires June 29, 2017                [Page 18]


Internet-Draft                 VxLAN YANG                  December 2016


   Mallik Mahalingam
   Springpath
   640 W. California Ave, Suite #110
   Sunnyvale, CA  94086
   USA

   Email: mallik_mahalingam@yahoo.com


   Zu Qiang
   Ericsson
   8400, boul. Decarie
   Ville Mont-Royal, QC
   Canada

   Email: Zu.Qiang@Ericsson.com


   Davari Shahram
   yahoo

   Email: davarish@yahoo.com


   Xufeng Liu
   Jabil
   8281 Greensboro Drive,Suite 200
   McLean, VA  22102
   USA

   Email: Xufeng_Liu@jabil.com




















Hu, et al.                Expires June 29, 2017                [Page 19]


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