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YANG Data Model for NVO3 Protocols
draft-zhang-nvo3-yang-cfg-04

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This is an older version of an Internet-Draft whose latest revision state is "Replaced".
Authors Mingui Zhang , Yuan Gao , Haibo Wang , Fu Qiao
Last updated 2018-12-18
Replaced by draft-ietf-nvo3-yang-cfg
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draft-zhang-nvo3-yang-cfg-04
INTERNET-DRAFT                                                Mingui Zhang                                     
Intended Status: Standards Track                              Yuan Gao
                                                              Haibo Wang
                                                                  Huawei
                                                                 Fu Qiao
                                                            China Mobile
Expires: June 18, 2016                                 December 16, 2018

                   YANG Data Model for NVO3 Protocols
                    draft-zhang-nvo3-yang-cfg-04.txt

Abstract

   This document describes the base YANG data model that can be used by
   operators to configure and manage NVO3 protocols.

Status of this Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as
   Internet-Drafts.

   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."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/1id-abstracts.html

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html

Copyright and License Notice

   Copyright (c) 2015 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  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2. Acronyms and Terminology  . . . . . . . . . . . . . . . . . . .  3
     2.1. Acronyms  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     2.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . .  3
   3. The YANG Data Model for NVO3  . . . . . . . . . . . . . . . . .  3
     3.1. The Configuration Parameters  . . . . . . . . . . . . . . .  3
       3.1.1. NVE ID  . . . . . . . . . . . . . . . . . . . . . . . .  4
       3.1.2. Virtual Network Instance  . . . . . . . . . . . . . . .  4
       3.1.3. Flags in the Header . . . . . . . . . . . . . . . . . .  4
       3.1.4. BUM Mode  . . . . . . . . . . . . . . . . . . . . . . .  5
     3.2. Statistics  . . . . . . . . . . . . . . . . . . . . . . . .  5
     3.3. Model Structure . . . . . . . . . . . . . . . . . . . . . .  5
     3.4. YANG Module . . . . . . . . . . . . . . . . . . . . . . . .  8
   4. Security Considerations . . . . . . . . . . . . . . . . . . . . 21
   5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 21
   Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . 21
   6. References  . . . . . . . . . . . . . . . . . . . . . . . . . . 22
     6.1. Normative References  . . . . . . . . . . . . . . . . . . . 22
     6.2. Informative References  . . . . . . . . . . . . . . . . . . 22
   Author's Addresses . . . . . . . . . . . . . . . . . . . . . . . . 23

 

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1. Introduction

   Network Virtualization Overlays (NVO3) enable network virtualization
   for data center networks environment that assumes an IP-based
   underlay.

   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
   specifies a YANG data model that can be used to configure and manage
   NVO3 protocols. The model covers the configuration of preliminary
   NVO3 instances as well as their operation states. We call it the base
   model for NVO3 in this document.

   Two default data plane encapsulation techniques for NVO3 are
   incorporated in the base module. It allows other possible
   encapsulations developed in the industry later on to be included by
   introducing a new encapsulation as a new 'choice'. As new solutions
   for NVO3 are developed, corresponding YANG data modules may be
   specified. The base module can be augmented to accommodate these new
   solutions.

2. Acronyms and Terminology

2.1. Acronyms

   NVO3: Network Virtualization Overlays
   VNI: Virtual Network Instance
   BUM: Broadcast, Unknown Unicast, Multicast traffic

2.2. Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

   Familiarity with [RFC7364], [RFC7365], [I-D.ietf-nvo3-dataplane-
   requirements] and [RFC7348] is assumed in this document.

3. The YANG Data Model for NVO3

   The NVO3 base YANG module is divided in three containers. The first
   container contains writable parameters. The second container contains
   the writable enablers per VNI for the statistical operational states
   as well as the status of these enablers. The third container contains
   the statistical operational states. 

3.1. The Configuration Parameters
 

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3.1.1. NVE ID

   The 'nvo3Nves' list contains NVEs under the management. The NVE is
   identified using the 'srcAddr', which is the underlay IP address of
   the NVE. 

3.1.2. Virtual Network Instance

   A Virtual Network Instance ('VNI') is a specific VN instance on an
   NVE [RFC7365]. At each NVE, a Tenant System is connect to VNIs
   through Virtual Access Points (VAP). VAPs can be physical ports or
   virtual ports identified by the bridge domain Identifier ('bdId').
   The mapping between VNI and bdId is managed by the operator.

3.1.3. Flags in the Header

   Flags in the NVO3 header are to be configured. For VxLAN, the I bit
   of 'flag' MUST be set to 1 while other 7 bits are reserved and MUST
   be set to zero on transmission and ignored on receipt. For NVGRE,
   bits in position 0 and 3 MUST be set to zero. The bit in position 2
   MUST be set to 1. Bits from position 4 through 12 are reserved and
   MUST be set to zero on transmission and ignored on receipt.

 

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3.1.4. BUM Mode

   An NVE SHOULD support either ingress replication or point to
   multipoint tunnels [I-D.ietf-nvo3-dataplane-requirements] on a per-
   VNI basis. It is possible that both modes be used simultaneously in
   one NVO3 network by different NVEs. 

   If ingress replication is used, the receiver addresses are listed in
   'peerAddr'. If the choice is point to multipoint tunnels, the
   multicast address is given as 'multiAddr'. 

3.2. Statistics

   Operators can determine whether a NVE should gather statistic values
   on a per-VNI base. The enablers are contained in the 'nvo3Info' list
   as 'statisticsEnable' leaf. 

   If the gathering for a VNI is enabled, the statistical information
   about the local NVEs, the remote NVEs, the flows and the MAC
   addresses will be collected by the NVEs in this VNI. 

3.3. Model Structure

   module: ietf-vxlan
     +--rw vxlan
        +--rw common
        |  +--rw vxlan-enable?   boolean
        +--rw nves
        |  +--rw nve* [if-name source-interface]
        |     +--rw if-name                          pub-type:ifName
        |     +--rw vtep-ip?                         inet:ipv4-address-no-zone
        |     +--rw ipv6-vtep-ip?                    inet:ipv6-address-no-zone
        |     +--rw source-interface                 pub-type:ifName
        |     +--rw mac-address?                     pub-type:macAddress
        |     +--rw bypass-vtep-ip?                  inet:ipv4-address-no-zone
        |     +--rw vni-members
        |     |  +--rw vni-member* [vni-id]
        |     |     +--rw vni-id          uint32
        |     |     +--rw protocol-bgp?   protocolType
        |     |     +--rw peers
        |     |     |  +--rw peer* [peer-ip]
        |     |     |     +--rw peer-ip                inet:ipv4-address-no-zone
        |     |     |     +--rw out-vni-id?            uint32
        |     |     |     +--rw split-horizon-group?   string
        |     |     +--rw ipv6-peers
        |     |     |  +--rw ipv6-peer* [ipv6-peer-ip]
        |     |     |     +--rw ipv6-peer-ip    inet:ipv6-address-no-zone
        |     |     +--rw flood-proxys
 

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        |     |     |  +--rw flood-proxy* [peer-ip]
        |     |     |     +--rw peer-ip    inet:ipv4-address-no-zone
        |     |     +--rw mcast-group* [mcast-group]
        |     |        +--rw mcast-group    inet:ipv4-address-no-zone
        |     +--rw vni-map-l2vpns
        |     |  +--rw vni-map-l2vpn* [vni-id]
        |     |     +--rw l2vpn-id               uint32
        |     |     +--rw l2vpn-name?            string
        |     |     +--rw vni-id                 uint32
        |     |     +--rw split-horizon-group?   string
        |     +--rw vni-map-l3vpns
        |     |  +--rw vni-map-l3vpn* [l3vpn-name]
        |     |     +--rw l3vpn-name    pub-type:vrfName
        |     |     +--rw vni-id?       uint32
        |     +--ro vni-statistics-infos
        |     |  +--ro vni-statistic-info* [vni-id]
        |     |     +--ro vni-id            uint32
        |     |     +--ro vni-statistics
        |     |        +--ro rx-bits-persec?        uint64
        |     |        +--ro rx-pkts-persec?        uint64
        |     |        +--ro tx-bits-persec?        uint64
        |     |        +--ro tx-pkts-persec?        uint64
        |     |        +--ro rx-pkts?               uint64
        |     |        +--ro rx-bytes?              uint64
        |     |        +--ro tx-pkts?               uint64
        |     |        +--ro tx-bytes?              uint64
        |     |        +--ro rx-unicast-pkts?       uint64
        |     |        +--ro rx-multicast-pkts?     uint64
        |     |        +--ro rx-broadcast-pkts?     uint64
        |     |        +--ro drop-unicast-pkts?     uint64
        |     |        +--ro drop-multicast-pkts?   uint64
        |     |        +--ro drop-broadcast-pkts?   uint64
        |     |        +--ro tx-unicast-pkts?       uint64
        |     |        +--ro tx-multicast-pkts?     uint64
        |     |        +--ro tx-broadcast-pkts?     uint64
        |     +--rw vnipeer-statistics-cfgs
        |     |  +--rw vnipeer-satistics-cfg* [vni-id peer-ip]
        |     |     +--rw vni-id     uint32
        |     |     +--rw peer-ip    inet:ipv4-address-no-zone
        |     +--ro vnipeer-statistics-infos
        |     |  +--ro vnipeer-satistics-info* [vni-id source-ip peer-ip]
        |     |     +--ro vni-id                uint32
        |     |     +--ro source-ip             inet:ipv4-address-no-zone
        |     |     +--ro peer-ip               inet:ipv4-address-no-zone
        |     |     +--ro vnipeer_statistics
        |     |        +--ro rx-bits-persec?        uint64
        |     |        +--ro rx-pkts-persec?        uint64
        |     |        +--ro tx-bits-persec?        uint64
 

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        |     |        +--ro tx-pkts-persec?        uint64
        |     |        +--ro rx-pkts?               uint64
        |     |        +--ro rx-bytes?              uint64
        |     |        +--ro tx-pkts?               uint64
        |     |        +--ro tx-bytes?              uint64
        |     |        +--ro rx-unicast-pkts?       uint64
        |     |        +--ro rx-multicast-pkts?     uint64
        |     |        +--ro rx-broadcast-pkts?     uint64
        |     |        +--ro drop-unicast-pkts?     uint64
        |     |        +--ro drop-multicast-pkts?   uint64
        |     |        +--ro drop-broadcast-pkts?   uint64
        |     |        +--ro tx-unicast-pkts?       uint64
        |     |        +--ro tx-multicast-pkts?     uint64
        |     |        +--ro tx-broadcast-pkts?     uint64
        |     +--rw ipv6-vnipeer-statistics-cfgs
        |     |  +--rw ipv6-vnipeer-statistics-cfg* [vni-id ipv6-source-ip ipv6-peer-ip]
        |     |     +--rw vni-id            uint32
        |     |     +--rw ipv6-source-ip    inet:ipv6-address-no-zone
        |     |     +--rw ipv6-peer-ip      inet:ipv6-address-no-zone
        |     +--ro ipv6-vnipeer-statistics-infos
        |        +--ro ipv6-vnipeer-statistics-info* [vniId ipv6-source-ip ipv6-peer-ip]
        |           +--ro vniId                      uint32
        |           +--ro ipv6-source-ip             inet:ipv6-address-no-zone
        |           +--ro ipv6-peer-ip               inet:ipv6-address-no-zone
        |           +--ro ipv6_vnipeer_statistics
        |              +--ro rx-bits-persec?        uint64
        |              +--ro rx-pkts-persec?        uint64
        |              +--ro tx-bits-persec?        uint64
        |              +--ro tx-pkts-persec?        uint64
        |              +--ro rx-pkts?               uint64
        |              +--ro rx-bytes?              uint64
        |              +--ro tx-pkts?               uint64
        |              +--ro tx-bytes?              uint64
        |              +--ro rx-unicast-pkts?       uint64
        |              +--ro rx-multicast-pkts?     uint64
        |              +--ro rx-broadcast-pkts?     uint64
        |              +--ro drop-unicast-pkts?     uint64
        |              +--ro drop-multicast-pkts?   uint64
        |              +--ro drop-broadcast-pkts?   uint64
        |              +--ro tx-unicast-pkts?       uint64
        |              +--ro tx-multicast-pkts?     uint64
        |              +--ro tx-broadcast-pkts?     uint64
        +--ro vnipeer-infos
        |  +--ro vnipeer-info* [vni-id source-ip peer-ip]
        |     +--ro vni-id        uint32
        |     +--ro source-ip     inet:ip-address-no-zone
        |     +--ro peer-ip       inet:ip-address-no-zone
        |     +--ro type?         peerType
 

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        |     +--ro out-vni-id?   uint32
        +--rw vni-infos
        |  +--rw vni_info* [vni-id]
        |     +--rw vni-id               uint32
        |     +--rw statistics-enable?   vniStatisticsEnable
        +--ro tunnel-infos
           +--ro tunnel-infos* [tunnel-id]
              +--ro tunnel-id    uint32
              +--ro source-ip?   inet:ip-address-no-zone
              +--ro peer-ip?     inet:ip-address-no-zone
              +--ro status?      tunnelStatus
              +--ro type?        tunnelType
              +--ro up-time?     string
              +--ro vrf-name?    pub-type:vrfName

  Figure 3.1. The tree structure of YANG module for vxlan configuration

3.4. YANG Module

   <CODE BEGINS> file "ietf-vxlan-base@2018-12-18.yang"

   module ietf-vxlan-base {
     namespace "urn:ietf:params:xml:ns:yang:ietf-vxlan-base";
     //namespace need to be assigned by IANA
     prefix "vxlan";
     import ietf-inet-types {
       prefix "inet";
     }
     organization "IETF NVO3 Working Group";
     contact "zhangmingui@huawei.com
       sean.gao@huawei.com";
     description "vxlan yang module";
     revision "2015-12-16" {
       description
         "Initial version";
       reference "RFC 7364";
     }

      container vxlan {
       container common {
         leaf vxlan-enable {
 

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           type boolean;
           default "false";
           description
             "Enable/Disable VXLAN featrue";
         }
       }
       container nves {
         list nve {
           key "if-name source-interface";
           ext:entry-from "system";
           leaf if-name {
             type pub-type:ifName;
             description
               "nve interface name";
           }
           leaf vtep-ip {
             type inet:ipv4-address-no-zone;
             description
               "vxlan tunnel source  address";
             ext:allowDelete "true";
           }
           leaf ipv6-vtep-ip {
             type inet:ipv6-address-no-zone;
             description
               "ipv6 vxlan tunnel source address";
             ext:allowDelete "true";
           }
           leaf source-interface {
             type pub-type:ifName;
             description
               "source interface";
           }
           leaf mac-address {
             type pub-type:macAddress;
             description
               "mac address";
             ext:allowDelete "true";
           }
           leaf bypass-vtep-ip {
             type inet:ipv4-address-no-zone;
             description
               "bypass vxlan tunnel source address";
             ext:allowDelete "true";
           }
           container vni-members {
             list vni-member {
               key "vni-id";
               description
 

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                 "nve vni member";
               leaf vni-id {
                 type uint32 {
                   range "1..16777215";
                 }
                 description
                   "Associate VXLAN VNIs (Virtual Network Identifiers) with the NVE interface.";
               }
               leaf protocol-bgp {
                 type protocolType;
                 default "null";
                 description
                   "Enables BGP EVPN with ingress replication for the VNI.";
                 ext:allowDelete "true";
               }
               container peers {
                 list peer {
                   key "peer-ip";
                   leaf peer-ip {
                     type inet:ipv4-address-no-zone;
                     description
                       "peer ip address";
                   }
                   leaf out-vni-id {
                     type uint32 {
                       range "1..16777215";
                     }
                     description
                       "out vni id";
                     ext:allowDelete "true";
                   }
                   leaf split-horizon-group {
                     type string {
                       length "1..31";
                     }
                     description
                       "split group name";
                     ext:allowDelete "true";
                   }
                 }
               }
               container ipv6-peers {
                 list ipv6-peer {
                   key "ipv6-peer-ip";
                   leaf ipv6-peer-ip {
                     type inet:ipv6-address-no-zone;
                     description
                       "peer ipv6 address";
 

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                   }
                 }
               }
               container flood-proxys {
                 list flood-proxy {
                   key "peer-ip";
                   leaf peer-ip {
                     type inet:ipv4-address-no-zone;
                     description
                       "peer ip address";
                   }
                 }
               }
               list mcast-group {
                 key "mcast-group";
                 leaf mcast-group {
                   type inet:ipv4-address-no-zone;
                   description
                     "mcast ip address";
                 }
               }
             }
           }
              container vni-map-l2vpns {
              list vni-map-l2vpn {
                key "vni-id";
                leaf l2vpn-id {
                  type uint32 {
                    range "1..16777215";
                  }
                  mandatory true;
                  description
                    "l2vpn id";
                }
                leaf l2vpn-name {
                  type string {
                    length "1..31";
                  }
                  description
                    "l2vpn name";
                  ext:allowDelete "true";
                }
                leaf vni-id {
                  type uint32 {
                    range "1..16777215";
                  }
                  description
                    "vni id";
 

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                }
                leaf split-horizon-group {
                  type string {
                    length "1..31";
                  }
                  description
                    "split group name";
                  ext:allowDelete "true";
                }
              }
            }
            container vni-map-l3vpns {
              list vni-map-l3vpn {
                key "l3vpn-name";
                leaf l3vpn-name {
                  type pub-type:vrfName;
                  description
                    "l3vpn name";
                }
                leaf vni-id {
                  type uint32 {
                    range "1..16777215";
                  }
                  description
                    "vni id";
                  ext:allowDelete "true";
                }
              }
            }
         container vni-statistics-infos {
             config false;
             list vni-statistic-info {
               key "vni-id";
               config false;
               leaf vni-id {
                 type uint32 {
                   range "1..16777215";
                 }
                 config false;
                 description
                   "vni id";
               }
               container vni-statistics {
                 config false;
                 leaf rx-bits-persec {
                   type uint64;
                   config false;
                 }
 

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                 leaf rx-pkts-persec {
                   type uint64;
                   config false;
                 }
                 leaf tx-bits-persec {
                   type uint64;
                   config false;
                 }
                 leaf tx-pkts-persec {
                   type uint64;
                   config false;
                 }
                 leaf rx-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-bytes {
                   type uint64;
                   config false;
                 }
                 leaf tx-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-bytes {
                   type uint64;
                   config false;
                 }
                 leaf rx-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-multicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-broadcast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-multicast-pkts {
                   type uint64;
                   config false;
                 }
 

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                 leaf drop-broadcast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-multicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-broadcast-pkts {
                   type uint64;
                   config false;
                 }
               }
             }
           }
           container vnipeer-statistics-cfgs {
             list vnipeer-satistics-cfg {
               key "vni-id peer-ip";
               leaf vni-id {
                 type uint32 {
                   range "1..16777215";
                 }
                 description
                   "vni id";
               }
               leaf peer-ip {
                 type inet:ipv4-address-no-zone;
               }
             }
           }
           container vnipeer-statistics-infos {
             config false;
             list vnipeer-satistics-info {
               key "vni-id source-ip peer-ip";
               config false;
               leaf vni-id {
                 type uint32 {
                   range "0..16777215";
                 }
                 config false;
                 description
                   "vni id";
               }
               leaf source-ip {
 

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                 type inet:ipv4-address-no-zone;
                 config false;
               }
               leaf peer-ip {
                 type inet:ipv4-address-no-zone;
                 config false;
               }
               container vnipeer_statistics {
                 config false;
                 leaf rx-bits-persec {
                   type uint64;
                   config false;
                 }
                 leaf rx-pkts-persec {
                   type uint64;
                   config false;
                 }
                 leaf tx-bits-persec {
                   type uint64;
                   config false;
                 }
                 leaf tx-pkts-persec {
                   type uint64;
                   config false;
                 }
                 leaf rx-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-bytes {
                   type uint64;
                   config false;
                 }
                 leaf tx-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-bytes {
                   type uint64;
                   config false;
                 }
                 leaf rx-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-multicast-pkts {
                   type uint64;
                   config false;
 

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                 }
                 leaf rx-broadcast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-multicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-broadcast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-multicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-broadcast-pkts {
                   type uint64;
                   config false;
                 }
               }
             }
           }
           container ipv6-vnipeer-statistics-cfgs {
             list ipv6-vnipeer-statistics-cfg {
               key "vni-id ipv6-source-ip ipv6-peer-ip";
               leaf vni-id {
                 type uint32 {
                   range "1..16777215";
                 }
                 description
                   "vni id";
               }
               leaf ipv6-source-ip {
                 type inet:ipv6-address-no-zone;
               }
               leaf ipv6-peer-ip {
                 type inet:ipv6-address-no-zone;
               }
 

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             }
           }
           container ipv6-vnipeer-statistics-infos {
             config false;
             list ipv6-vnipeer-statistics-info {
               key "vniId ipv6-source-ip ipv6-peer-ip";
               config false;
               leaf vniId {
                 type uint32 {
                   range "1..16777215";
                 }
                 config false;
                 description
                   "vni id";
               }
               leaf ipv6-source-ip {
                 type inet:ipv6-address-no-zone;
                 config false;
               }
               leaf ipv6-peer-ip {
                 type inet:ipv6-address-no-zone;
                 config false;
               }
               container ipv6_vnipeer_statistics {
                 config false;
                 leaf rx-bits-persec {
                   type uint64;
                   config false;
                 }
                 leaf rx-pkts-persec {
                   type uint64;
                   config false;
                 }
                 leaf tx-bits-persec {
                   type uint64;
                   config false;
                 }
                 leaf tx-pkts-persec {
                   type uint64;
                   config false;
                 }
                 leaf rx-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-bytes {
                   type uint64;
                   config false;
 

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                 }
                 leaf tx-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-bytes {
                   type uint64;
                   config false;
                 }
                 leaf rx-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-multicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf rx-broadcast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-multicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf drop-broadcast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-unicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-multicast-pkts {
                   type uint64;
                   config false;
                 }
                 leaf tx-broadcast-pkts {
                   type uint64;
                   config false;
                 }
               }
             }
           }
 

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         }
       }
       container vnipeer-infos {
         config false;
         list vnipeer-info {
           key "vni-id source-ip peer-ip";
           config false;
           leaf vni-id {
             type uint32 {
               range "1..16777215";
             }
             config false;
             description
               "vni-id";
           }
           leaf source-ip {
             type inet:ip-address-no-zone;
             config false;
             description
               "source ip";
           }
           leaf peer-ip {
             type inet:ip-address-no-zone;
             config false;
             description
               "peer ip";
           }
           leaf type {
             type peerType;
             config false;
             description
               "tunnel type";
           }
           leaf out-vni-id {
             type uint32 {
               range "1..16777215";
             }
             config false;
             description
               "out vni id";
           }
         }
       }
       container vni-infos {
         list vni_info {
           key "vni-id";
           leaf vni-id {
             type uint32 {
 

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               range "1..16777215";
             }
             description
               "vni id";
           }
           leaf statistics-enable {
             type vniStatisticsEnable;
             default "disable";
             ext:allowDelete "true";
           }
         }
       }
       container tunnel-infos {
         config false;
         list tunnel-infos {
           key "tunnel-id";
           config false;
           leaf tunnel-id {
             type uint32 {
               range "1..4294967295";
             }
             config false;
             description
               "tunnel id";
           }
           leaf source-ip {
             type inet:ip-address-no-zone;
             config false;
             description
               "source";
             ext:support-filter "true";
           }
           leaf peer-ip {
             type inet:ip-address-no-zone;
             config false;
             description
               "peer ip";
             ext:support-filter "true";
           }
           leaf status {
             type tunnelStatus;
             config false;
             description
               "tunnel status";
 

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           }
           leaf type {
             type tunnelType;
             config false;
             description
               "tunnel type";
           }
           leaf up-time {
             type string {
               length "1..10";
             }
             config false;
             description
               "tunnel up time";
           }
           leaf vrf-name {
             type pub-type:vrfName;
             default "_public_";
             config false;
             description
               "vrf";
           }
         }
       }
     }
   <CODE ENDS>

4. Security Considerations

   This document raises no new security issues.

5. IANA Considerations

   The namespace URI defined in Section 3.3 need be registered in the
   IETF XML registry [RFC3688]. 

   This document need to register the 'ietf-nvo3-base' YANG module in
   the YANG Module Names registry [RFC6020].

Acknowledgements

   Authors would like to thank the comments and suggestions from Tao
 

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   Han, Shouchuan Yang, Feng Zheng, Lianshu Zheng,  Weilian Jiang.

6. References 

6.1. Normative References

   [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
             Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC7364] T. Narten, E. Gray, et al, "Problem Statement: Overlays for
             Network Virtualization", draft-ietf-nvo3-overlay-problem-
             statement, working in progress.

   [RFC7365] Marc Lasserre, Florin Balus, et al, "Framework for DC
             Network Virtualization", draft-ietf-nvo3-framework, working
             in progress.

   [I-D.ietf-nvo3-dataplane-requirements] Nabil Bitar, Marc Lasserre, et
             al, "NVO3 Data Plane Requirements", draft-ietf-nvo3-
             dataplane-requirements, working in progress.

   [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, August 2014.

   [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
             January 2004.

   [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
             the Network Configuration Protocol (NETCONF)", RFC 6020,
             October 2010.

   [RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
             and A. Bierman, Ed., "Network Configuration Protocol
             (NETCONF)", RFC 6241, June 2011.

6.2. Informative References

   [I-D.zhang-nvo3-yang-active-active] M. Zhang, J. Xia, "YANG Data
             Model for NVO3 Active Active Access", draft-zhang-nvo3-
             yang-active-active, working in progress.

   [I-D.sridharan-virtualization-nvgre] M. Sridharan, A. Greenberg, et
             al, "NVGRE: Network Virtualization using Generic Routing
             Encapsulation", draft-sridharan-virtualization-nvgre,
             working in progress.
 

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Author's Addresses

   Mingui Zhang
   Huawei Technologies
   No. 156 Beiqing Rd. Haidian District,
   Beijing 100095 
   P.R. China
        
   EMail: zhangmingui@huawei.com

   Yuan Gao
   Huawei Technologies
   No. 101 Nanjing Rd. Yuhua District,
   Nanjing  210012 
   P.R. China
        
   EMail: sean.gao@huawei.com
   
   Haibo Wang
   Huawei Technologies
   No. 156 Beiqing Rd. Haidian District,
   Beijing 100095 
   P.R. China
        
   EMail: rainsword.wang@huawei.com

   Fu Qiao
   China Mobile 

   EMail: fuqiao@chinamobile.com

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