在Cisco IOS-XR上配置mVPN外联网并排除故障

下载选项

PDF (961.9 KB)
在各种设备上使用 Adobe Reader 查看
ePub (727.3 KB)
在 iPhone、iPad、Android、Sony Reader 或 Windows Phone 上使用各种应用查看
Mobi (Kindle) (853.8 KB)
在 Kindle 设备上查看或在多个设备上使用 Kindle 应用查看

已更新: 2021 年 12 月 12 日

文档 ID:217600

非歧视性语言

此产品的文档集力求使用非歧视性语言。在本文档集中，非歧视性语言是指不隐含针对年龄、残障、性别、种族身份、族群身份、性取向、社会经济地位和交叉性的歧视的语言。由于产品软件的用户界面中使用的硬编码语言、基于 RFP 文档使用的语言或引用的第三方产品使用的语言，文档中可能无法确保完全使用非歧视性语言。深入了解思科如何使用包容性语言。

关于此翻译

思科采用人工翻译与机器翻译相结合的方式将此文档翻译成不同语言，希望全球的用户都能通过各自的语言得到支持性的内容。请注意：即使是最好的机器翻译，其准确度也不及专业翻译人员的水平。 Cisco Systems, Inc. 对于翻译的准确性不承担任何责任，并建议您总是参考英文原始文档（已提供链接）。

简介

本文档介绍外联网mVPN，并提供Cisco IOS®XR中^的配置示例。

先决条件

要求

本文档没有任何特定的要求。

使用的组件

本文档特定于思科IOS XR，但不限于特定软件版本或硬件。

本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您的网络处于活动状态，请确保您了解所有命令的潜在影响。

mVPN简介

支持组播的VPN(mVPN)支持组播。mVPN使用与单播第3层VPN网络使用的相同的虚拟路由和转发(VRF)概念。

此图显示VRF内组播转发（使用配置文件0）。

mVPN Extranet on IOS-XR: Multicast Packet flow for Intranet MVRF IOS-XR上的mVPN外联网：内部网MVRF的组播数据包流

图1.内联网MVRF的组播数据包流

组播依赖于反向路径转发(RPF)。这同样适用于VRF间组播流量。这意味着为了组播从一个VRF流到另一个VRF，需要有一个VRF到RPF，以便组播流量源到另一个VRF。因此，组播源的路由需要在PE路由器的接收方VRF路由表中可用。有两种方法可确保RPF在VRF环境中成功。

基于路由信息库(RIB)。这意味着来自一个VRF（源VRF）的路由需要泄漏到另一个VRF（接收器VRF）中。这将通过使用路由目标(RT)的导入和导出功能来实现。
基于路由策略语言(RPL)。这意味着RPF成功，这要归功于路由策略强制RPF向VRF和/或接口（在另一个VRF中）发送。

PE路由器不会重新通告VPN路由。如果PE路由器从远程PE路由器收到VPN路由并将其导入VRF 1，则它无法将该VPN前缀从VRF 1导出到本地VRF 2。无论此PE路由器上是否存在从VRF 1到VRF 2的本地路由目标导入路由，都不会导入VRF 2。

组播完全是RPF成功的关键。请务必留意RPF。要使外联网组播正常工作，RPF必须从一个VRF到另一个VRF，从接收方到源VRF。因此，接收方VRF中的源必须有单播路由返回源VRF。

Lmdt:标记的组播分布树

方案

Cisco IOS XE还支持外联网mVPN。过去，IOS(-XE)引入了两种实现外联网mVPN的方案。它们称为选项1和选项2。IOS-XR支持采用相同方案的外联网。

选项 1：源组播虚拟路由和转发(MVRF)位于接收方MVRF上。这意味着，在具有相应路由目标的出口PE路由器上，还配置了用于组播流量的入口PE路由器上的VRF（源VRF）。

查看图2。它显示选项1的组播数据包流。

mVPN Extranet on IOS-XR: Multicast Packet flow for Extranet Option 1. IOS-XR上的mVPN外联网：外联网的组播数据包流选项1

图2.外联网选项1的组播数据包流。

组播流量通过核心网络并使用源MVRF的封装。

选项 2：接收方MVRF位于源MVRF上。这意味着，在具有适当路由目标的入口PE路由器上，也为组播流量配置了出口PE路由器上的VRF（接收器VRF）。

查看图3。它显示选项2的组播数据包流。

mVPN Extranet on IOS-XR: Multicast Packet flow for Extranet Option 2. IOS-XR上的mVPN外联网：外联网的组播数据包流选项2

图3.外联网选项2的组播数据包流。

组播流量通过核心网络，并使用源MVRF和接收方MVRF的封装。因此，组播流量使用的带宽量是核心网络中带宽量的两倍。

第三个选项，选项1和选项2之间的混合解决方案。

选项 3：使用传输MVRF。入口PE路由器将组播流量从源VRF外部到传输VRF。出口PE路由器将组播流量从传输VRF外部到接收方VRF。此传输MVRF没有与其关联的面向客户的接口。

mVPN Extranet on IOS-XR: Multicast Packet flow for Extranet using a third VRF, the transport VRF IOS-XR上的mVPN外联网：使用第三个VRF（传输VRF）的外联网组播数据包流

图4.使用第三个VRF（传输VRF）的外联网组播数据包流。

支持概述

选项 1 支持

所有配置文件都提供基于RPL的支持。

只有使用组播核心树协议（配置文件0、3和11）的配置文件支持基于RIB的外联网mVPN。

选项 2 支持

所有配置文件都支持基于RPL和基于RIB的支持，但使用客户信令与BGP的配置文件除外（例如配置文件2、11、...）。最后这些仅以特殊方式支持选项2。示例2.2说明了这一点。

查看此处，了解不同配置文件的概述和配置：在Cisco IOS-XR中配置mVPN配置文件

Examples

注意组播RIB(MRIB)条目上的EX或外联网标志。它们存在于源和接收方VRF、组播条目和接口上。

配置文件0

配置文件0使用默认MDT，在底层和重叠（VRF环境）中使用PIM组播信令。

此配置文件支持选项1和2（以及3）。

图5显示VRF内组播流量，VRF 1到VRF 1。

mVPN Extranet on IOS-XR: Profile 0 - Multicast Packet flow for Intranet MVRF IOS-XR上的mVPN外联网：配置文件0 — 内联网MVRF的组播数据包流

映像5配置文件0 — 内联网MVRF的组播数据包流

配置文件0的配置。

multicast-routing
 vrf one
  address-family ipv4
   interface GigabitEthernet0/0/0/1
    enable
   !
   mdt source Loopback0
   mdt default ipv4 239.1.1.1
  !
 !
!

router pim
 vrf one
  address-family ipv4
   ssm range SSM-range-vrf-one
  !
 !
!

请注意，配置文件0是不要求RPF拓扑命令的唯一配置文件。

或者，您可以为配置文件0配置RPF拓扑命令。

router pim
 vrf one
  address-family ipv4
   rpf topology route-policy profile-0
   ssm range SSM-range-vrf-one
  !
 !
!

route-policy profile-0
  set core-tree pim-default
end-policy
!

出口PE 1上MRIB条目的输出如下所示：

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.1 10.0.0.12

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.12,232.1.1.1) RPF nbr: 10.0.0.2 Flags: RPF
  Up: 01:15:06
  Incoming Interface List
    mdtone Flags: A MI, Up: 01:06:10
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 01:15:06

RPF指向mdtone，即VRF1的组播分布树(MDT)。

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.12
Table: IPv4-Unicast-default
* 10.0.0.12/32 [200/0]
    via mdtone with rpf neighbor 10.0.0.2
    Connector: 65000:1002:10.0.0.2, Nexthop: 10.0.0.2

RP/0/0/CPU0:PE2#show mrib vrf one route 232.1.1.1 10.0.0.12

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.12,232.1.1.1) RPF nbr: 10.2.12.12 Flags: RPF
  Up: 01:14:26
  Incoming Interface List
    GigabitEthernet0/0/0/1 Flags: A, Up: 01:14:26
  Outgoing Interface List
    mdtone Flags: F MI, Up: 01:06:51

RP/0/0/CPU0:PE2#show pim vrf one rpf 10.0.0.12

Table: IPv4-Unicast-default
* 10.0.0.12/32 [20/0]
    via GigabitEthernet0/0/0/1 with rpf neighbor 10.2.12.12

示例1.1.选项1.源MVRF位于接收方MVRF上

配置文件0支持基于RIB的选项1。返回源的路由需要存在于接收方VRF中。

mVPN Extranet on IOS-XR: Profile 0 - Option 1. The source MVRF is on the receiver MVRF IOS-XR上的mVPN外联网：配置文件0 — 选项1源MVRF位于接收方MVRF上

图6.配置文件0 — 选项1。源MVRF位于接收方MVRF上

图6显示，入口PE路由器PE2从VRF 2（源VRF）通告源路由，路由目标为65000:5555。出口PE路由器PE1将具有此路由目标的路由导入VRF1，即接收方VRF。

VRF 1和VRF 2使用配置文件0。

multicast-routing
 address-family ipv4
  interface Loopback0
   enable
  !
  interface GigabitEthernet0/0/0/0
   enable
  !
 !
 vrf one
  address-family ipv4
   interface GigabitEthernet0/0/0/1
    enable
   !
   mdt source Loopback0
   mdt default ipv4 239.1.1.1
  !
 !
 vrf two
  address-family ipv4
   interface GigabitEthernet0/0/0/2
    enable
   !
   mdt source Loopback0
   mdt default ipv4 239.1.1.2
  !

router pim
 address-family ipv4
  ssm range SSM-range
 !
 vrf one
  address-family ipv4
   ssm range SSM-range-vrf-one
  !
 !
 vrf two
  address-family ipv4
   ssm range SSM-range-vrf-two
  !
 !
!

入口PE路由器PE2使用路由目标65000:5555导出源路由。出口PE路由器PE1将此路由与路由目标65000:5555导入VRF1。

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF TID: 0xe0000011 Flags: RPF EX
  Up: 01:36:16
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 01:36:16

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [200/0]
    via VRF:two with rpf neighbor 10.0.0.2
    Connector: 65000:2002:10.0.0.2, Nexthop: 10.0.0.2

出口PE路由器PE1如何知道RPF必须在VRF 2中发生？

VRF1中的BGP vpn4单播路由如下所示：

RP/0/0/CPU0:PE1#show bgp vpnv4 unicast vrf one 10.0.0.15/32
BGP routing table entry for 10.0.0.15/32, Route Distinguisher: 65000:1001
Versions:
  Process           bRIB/RIB  SendTblVer
  Speaker                 65          65
Last Modified: Nov 21 19:09:22.469 for 00:14:33
Paths: (1 available, best #1)
  Not advertised to any peer
  Path #1: Received by speaker 0
  Not advertised to any peer
  65005
    10.0.0.2 (metric 3) from 10.0.0.4 (10.0.0.2)
      Received Label 24006
      Origin IGP, metric 0, localpref 100, valid, internal, best, group-best, import-candidate, imported
      Received Path ID 0, Local Path ID 1, version 65
      Extended community: RT:65000:2 RT:65000:5555
      Originator: 10.0.0.2, Cluster list: 10.0.0.4
      Connector: type: 1, Value:65000:2002:10.0.0.2
      Source AFI: VPNv4 Unicast, Source VRF: default, Source Route Distinguisher: 65000:2002

此路由标识符与VRF关联。PE1通过在BGP地址系列ipv4 mdt表中查找RD来找回用于此RD（路由识别器）的组播组地址。

RP/0/0/CPU0:PE1#show bgp ipv4 mdt rd 65000:2002 10.0.0.2
BGP routing table entry for 10.0.0.2/96, Route Distinguisher: 65000:2002
Versions:
  Process           bRIB/RIB  SendTblVer
  Speaker                  6           6
Last Modified: Nov 21 17:26:11.469 for 01:58:30
Paths: (1 available, best #1)
  Not advertised to any peer
  Path #1: Received by speaker 0
  Not advertised to any peer
  Local
    10.0.0.2 (metric 3) from 10.0.0.4 (10.0.0.2)
      Origin IGP, localpref 100, valid, internal, best, group-best
      Received Path ID 0, Local Path ID 1, version 6
      Originator: 10.0.0.2, Cluster list: 10.0.0.4
      MDT group address: 239.1.1.2

此组地址239.1.1.2是VRF 2使用的组地址。每个PE路由器（包括此路由器PE1）都将此组配置为VRF 2的默认MDT组地址。

RP/0/0/CPU0:PE1#show mrib vrf two route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF nbr: 10.0.0.2 Flags: RPF EX
  Up: 00:05:11
  Incoming Interface List
    mdttwo Flags: A MI, Up: 00:05:11
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS EX, Up 00:05:11

RP/0/0/CPU0:PE1#show pim vrf two rpf 10.0.0.15 
Table: IPv4-Unicast-default
* 10.0.0.15/32 [200/0]
    via mdttwo with rpf neighbor 10.0.0.2
    Connector: 65000:2002:10.0.0.2, Nexthop: 10.0.0.2

组播流量使用VRF 2的默认或一个数据MDT来穿越核心网络。

RP/0/0/CPU0:PE2#show mrib vrf two route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF nbr: 10.2.15.15 Flags: RPF
  Up: 00:02:49
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A, Up: 00:02:49
  Outgoing Interface List
    mdttwo Flags: F MI, Up: 00:02:49

如果VRF1在入口PE、PE2上甚至存在于入口PE路由器PE2上，则(10.0.0.15、232.1.1.3)没有状态。

基于RIB方法的替代方法是基于RPL的方法。这意味着路由策略用于更改RPF。有关此RPF路由策略的示例，请参阅示例2.1。

示例1.2.选项2.接收方MVRF位于源MVRF上

这是基于RIB的方法。

mVPN Extranet on IOS-XR: Profile 0 - Option 2. The receiver MVRF is on the source MVRF IOS-XR上的mVPN外联网：配置文件0 — 选项2接收方MVRF位于源MVRF上

图像7配置文件0 — 选项2接收器MVRF位于源MVRF上

路由目标用于将VRF两个路由导入接收器PE、PE3上的VRF一个。

入口PE PE2需要VRF 1（接收器VRF）中指向VRF 2（源VRF）的静态路由，以便RPF在入口PE路由器PE2上成功。

PE3:

vrf one
 address-family ipv4 unicast
  import route-target
   65000:1
   65000:3333  
  !
  export route-target
   65000:1   
  !

PE2:

vrf one
 address-family ipv4 unicast
  import route-target
   65000:1
  !
  export route-target
   65000:1
  !
  
vrf two
 address-family ipv4 unicast
  import route-target
   65000:2
  !
  export route-target
   65000:2
   65000:3333

router static
 vrf one
  address-family ipv4 unicast
   10.0.0.15/32 vrf two GigabitEthernet0/0/0/2 10.2.15.15
  !

无需将此静态路由重分布到BGP。此路由在VRF 2（源VRF）中通告。出口PE路由器PE3收到此路由，因为它由入口PE路由器PE1在VRF 2中通告，路由目标为65000:3333，该路由导入PE3上的VRF 1中。要使RPF在入口PE路由器PE上的VRF 1上成功，需要使用静态路由2.

组播流量使用来自VRF的MDT通过核心网络。

RP/0/0/CPU0:PE3#show mrib vrf one route 232.1.1.4 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.4) RPF nbr: 10.0.0.2 Flags: RPF
  Up: 14:54:08
  Incoming Interface List
    mdtone Flags: A MI, Up: 00:16:47
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 14:54:08

RP/0/0/CPU0:PE3#show route vrf one 10.0.0.15/32
Routing entry for 10.0.0.15/32
  Known via "bgp 65000", distance 200, metric 0, type internal
  Installed Nov 22 08:02:19.808 for 00:25:24
  Routing Descriptor Blocks
    10.0.0.2, from 10.0.0.4
      Nexthop in Vrf: "default", Table: "default", IPv4 Unicast, Table Id: 0xe0000000
      Route metric is 0
  No advertising protos.

RP/0/0/CPU0:PE3#show bgp vpnv4 unicast vrf one 10.0.0.15/32
BGP routing table entry for 10.0.0.15/32, Route Distinguisher: 65000:1003
Versions:
  Process           bRIB/RIB  SendTblVer
  Speaker                 51          51
Last Modified: Nov 22 09:24:32.318 for 00:02:38
Paths: (1 available, best #1)
  Not advertised to any peer
  Path #1: Received by speaker 0
  Not advertised to any peer
  65005
    10.0.0.2 (metric 3) from 10.0.0.4 (10.0.0.2)
      Received Label 24006
      Origin IGP, metric 0, localpref 100, valid, internal, best, group-best, import-candidate, imported
      Received Path ID 0, Local Path ID 1, version 51
      Extended community: RT:65000:2 RT:65000:3333
      Originator: 10.0.0.2, Cluster list: 10.0.0.4
      Connector: type: 1, Value:65000:2002:10.0.0.2
      Source AFI: VPNv4 Unicast, Source VRF: default, Source Route Distinguisher: 65000:2002

RP/0/0/CPU0:PE3#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [200/0]
    via mdtone with rpf neighbor 10.0.0.2
    Connector: 65000:1002:10.0.0.2, Nexthop: 10.0.0.2

PE2在VRF ONE中为MRIB条目（VRF ONE的MDT接口）提供传出接口mdtone。

RP/0/0/CPU0:PE2#show mrib vrf one route 232.1.1.4 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.4) RPF TID: 0xe0000011 Flags: RPF EX
  Up: 00:21:58
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A EX, Up: 00:21:58
  Outgoing Interface List
    mdtone Flags: F MI, Up: 00:21:58

PE2在VRF 2中也有用于MRIB条目的传出接口mdtone，即VRF 1的MDT接口。

RP/0/0/CPU0:PE2#show mrib vrf two route 232.1.1.4 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.4) RPF nbr: 10.2.15.15 Flags: RPF EX
  Up: 00:18:39
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A, Up: 00:18:39
  Outgoing Interface List
    mdtone Flags: F MI EX, Up: 00:18:39

RP/0/0/CPU0:PE2#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [1/0]
    via VRF:two,GigabitEthernet0/0/0/2 with rpf neighbor 10.2.15.15

示例1.3.选项3.使用传输MVRF

IOS-XR上的mVPN外联网：配置文件0 — 选项3使用传输MVRF

图8.配置文件0 — 选项3使用传输MVRF

传输MVRF不需要任何接口。但是，其他所有东西都需要存在：VRF配置、BGP配置、组播路由配置和路由器PIM配置。

选项1的配置在出口PE、PE1上，而选项2的配置在入口PE、PE2上。

PE1:

vrf one
 address-family ipv4 unicast
  import route-target
   65000:1
   65000:65000
  !
  export route-target
   65000:1
  !

vrf transport
 address-family ipv4 unicast
  import route-target
   65000:65000
  !
  export route-target
   65000:65000
  !

router bgp 65000
…
vrf one
  rd 65000:1001
  bgp unsafe-ebgp-policy
  address-family ipv4 unicast
   redistribute connected
  !
  address-family ipv4 mvpn
  !
  neighbor 10.1.11.11
   remote-as 65001
   address-family ipv4 unicast
    route-policy pass-all in
    route-policy pass-all out
   !
  !
!
 vrf transport
  rd 65000:123
  address-family ipv4 unicast
   redistribute static
  !
  address-family ipv4 mvpn
  !

multicast-routing
 vrf one
  address-family ipv4
   interface GigabitEthernet0/0/0/1
    enable
   !
   mdt source Loopback0
   mdt default ipv4 239.1.1.1
  !
 !
!

multicast-routing
 vrf transport
  address-family ipv4
   mdt source Loopback0
   mdt default ipv4 239.1.1.3
  !
 !

router pim
 vrf one
  address-family ipv4
   ssm range SSM-range-vrf-one
  !
 !
!

router pim
 vrf transport
  address-family ipv4
   ssm range SSM-range-vrf-transport
  !

PE2:

vrf two
 address-family ipv4 unicast
  import route-target
   65000:2
  !
  export route-target
   65000:2
   65000:65000
  !

vrf transport
 address-family ipv4 unicast
  import route-target
   65000:65000
  !
  export route-target
   65000:65000
  !

router bgp 65000
…
!
 vrf two
  rd 65000:2002
  bgp unsafe-ebgp-policy
  address-family ipv4 unicast
   redistribute connected
  !
  address-family ipv4 mvpn
  !
  neighbor 10.2.15.15
   remote-as 65005
   address-family ipv4 unicast
    route-policy pass-all in
    route-policy pass-all out
   !
  !
 !

router static
!
 vrf transport
  address-family ipv4 unicast
   10.0.0.15/32 vrf two GigabitEthernet0/0/0/2 10.2.15.15
  !

 vrf transport
  rd 65000:123
  address-family ipv4 unicast
   redistribute static
  !
  address-family ipv4 mvpn
  !

multicast-routing
 vrf two
  address-family ipv4
   interface GigabitEthernet0/0/0/2
    enable
   !
   mdt source Loopback0
   mdt default ipv4 239.1.1.2
  !
 !
!

multicast-routing
 vrf transport
  address-family ipv4
   mdt source Loopback0
   mdt default ipv4 239.1.1.3
  !

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF TID: 0xe0000012 Flags: RPF EX
  Up: 16:41:11
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 16:41:11

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [200/0]
    via VRF:transport with rpf neighbor 10.0.0.2
    Connector: 65000:123:10.0.0.2, Nexthop: 10.0.0.2

RP/0/0/CPU0:PE1#show mrib vrf transport route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF nbr: 10.0.0.2 Flags: RPF EX
  Up: 00:08:14
  Incoming Interface List
    mdttransport Flags: A MI, Up: 00:08:14
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS EX, Up: 00:00:14

RP/0/0/CPU0:PE1#show pim vrf transport rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [200/0]
    via mdttransport with rpf neighbor 10.0.0.2
    Connector: 65000:123:10.0.0.2, Nexthop: 10.0.0.2

源的路由必须在出口PE路由器的VRF传输中已知。

RP/0/0/CPU0:PE1#show route vrf transport 10.0.0.15/32
Routing entry for 10.0.0.15/32
  Known via "bgp 65000", distance 200, metric 0, type internal
  Installed Nov 22 09:57:13.255 for 00:15:30
  Routing Descriptor Blocks
    10.0.0.2, from 10.0.0.4
      Nexthop in Vrf: "default", Table: "default", IPv4 Unicast, Table Id: 0xe0000000
      Route metric is 0
  No advertising protos.

入口PE、PE2:

RP/0/0/CPU0:PE2#show mrib vrf two route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF nbr: 10.2.15.15 Flags: RPF EX
  Up: 00:10:37
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A, Up: 00:10:37
  Outgoing Interface List
    mdttransport Flags: F NS MI EX, Up: 00:10:37

RP/0/0/CPU0:PE2#show pim vrf two rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [20/0]
    via GigabitEthernet0/0/0/2 with rpf neighbor 10.2.15.15

RP/0/0/CPU0:PE2#show mrib vrf transport route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF TID: 0xe0000011 Flags: RPF EX
  Up: 00:11:44
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A EX, Up: 00:11:44
  Outgoing Interface List
    mdttransport Flags: F NS MI, Up: 00:11:44

RP/0/0/CPU0:PE2#show pim vrf transport rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [1/0]
    via VRF:two,GigabitEthernet0/0/0/2 with rpf neighbor 10.2.15.15

示例1.4.本地外联网

只涉及一个PE路由器。在接收方VRF中将路由返回到源VRF是基于RIB的解决方案的唯一要求。

一种解决方案是使用适当的路由目标，让VRF 1（源VRF）从VRF 2（接收器VRF）导入路由。

mVPN Extranet on IOS-XR: Profile 0 - Local Extranet IOS-XR上的mVPN外联网：配置文件0 — 本地外联网

图9.配置文件0 — 本地外联网

PE1:

vrf one
 address-family ipv4 unicast
  import route-target
   65000:1
   65000:2
  !
  export route-target
   65000:1  !
 !
!

vrf two
 address-family ipv4 unicast
  import route-target
   65000:2
  !
  export route-target
   65000:2
  !

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.2 10.0.0.14

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.14,232.1.1.2) RPF TID: 0xe0000011 Flags: RPF EX
  Up: 17:02:25
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A EX, Up: 00:02:32
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 1702:25

RP/0/0/CPU0:PE1#show route vrf one 10.0.0.14/32

Routing entry for 10.0.0.14/32
  Known via "bgp 65000", distance 20, metric 0
  Tag 65004, type external
  Installed Nov 22 10:24:52.002 for 00:01:10
  Routing Descriptor Blocks
    10.1.14.14, from 10.1.14.14, BGP external
      Nexthop in Vrf: "two", Table: "default", IPv4 Unicast, Table Id: 0xe0000011
      Route metric is 0
  No advertising protos.

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.14
Table: IPv4-Unicast-default
* 10.0.0.14/32 [20/0]
    via VRF:two with rpf neighbor 10.1.14.14

RP/0/0/CPU0:PE1#show mrib vrf two route 232.1.1.2 10.0.0.14

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.14,232.1.1.2) RPF nbr: 10.1.14.14 Flags: RPF EX
  Up: 00:03:06
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A, Up: 00:03:06
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS EX, Up: 00:03:06

RP/0/0/CPU0:PE1#show pim vrf two rpf 10.0.0.14
Table: IPv4-Unicast-default
* 10.0.0.14/32 [20/0]
    via GigabitEthernet0/0/0/2 with rpf neighbor 10.1.14.14

简档14

配置文件14使用分区MDT，在底层使用mLDP组播信令，在重叠（VRF环境）中使用BGP（客户）信令。

此配置文件支持选项1。

选项2和3可用于路由技巧。

图10显示VRF内组播流量，VRF 1到VRF 1。

mVPN Extranet on IOS-XR: Profile 14 - Intra-VRF Multicast Traffic IOS-XR上的mVPN外联网：配置文件14 - VRF内组播流量

映像10配置文件14 - VRF内组播流量

出口PE 1上MRIB条目的输出如下所示：

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.1 10.0.0.12

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.12,232.1.1.1) RPF nbr: 10.0.0.2 Flags: RPF
  Up: 02:06:44
  Incoming Interface List
    Lmdtone Flags: A LMI, Up: 02:05:18
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 02:06:44

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.12

Table: IPv4-Unicast-default
* 10.0.0.12/32 [200/0]
    via Lmdtone with rpf neighbor 10.0.0.2
    Connector: 65000:1002:10.0.0.2, Nexthop: 10.0.0.2

router pim
 vrf one
  address-family ipv4
   rpf topology route-policy profile-14
   mdt c-multicast-routing bgp
   !
   ssm range SSM-range-vrf-one
  !
 !

route-policy profile-14
  set core-tree mldp-partitioned-p2mp
end-policy
!

示例2.1。选项1.源MVRF位于接收方MVRF上

mVPN Extranet on IOS-XR: Profile 14 - Option 1. The source MVRF is on the receiver MVRF IOS-XR上的mVPN外联网：配置文件14 — 选项1源MVRF位于接收方MVRF上

图11配置文件14 — 选项1源MVRF位于接收方MVRF上

必须在接收机PE的接收机VRF上更改RPF。

对于VRF 1和VRF 2，导入和导出语句保持不变。

router pim
 vrf one
  address-family ipv4
   rpf topology route-policy profile-14-extranet
   mdt c-multicast-routing bgp
   !
   ssm range SSM-range-vrf-one
  !
 !
!
router pim
 vrf two
  address-family ipv4
   rpf topology route-policy profile-14
   mdt c-multicast-routing bgp
   !
   ssm range SSM-range-vrf-two
  !
 !
!

route-policy profile-14
  set core-tree mldp-partitioned-p2mp
end-policy
!

route-policy profile-14-extranet
  if destination in (232.1.1.3/32) then
    set rpf-topology vrf two
  else
    set core-tree mldp-partitioned-p2mp
  endif
end-policy
!

组播组232.1.1.3的VRF 1中的RPF指向VRF 2。

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF TID: 0xe0000011 Flags: EX
  Up: 03:37:29
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 03:37:29

注意：VRF One中没有MRIB条目的传入接口。这对流量转发没有影响。

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [4294967295/4294967295]
    via Null with rpf neighbor 0.0.0.0

注意：RPF在出口PE的VRF ONE中发生故障。这对流量转发没有影响。

RP/0/0/CPU0:PE1#show mrib vrf two route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF nbr: 10.0.0.2 Flags: RPF EX
  Up: 00:05:58
  Incoming Interface List
    Lmdttwo Flags: A LMI, Up: 00:05:58
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS EX, Up: 00:05:58

请注意，接口GE0/0/0/1在VRF 1中。

示例2.2.选项2.接收方MVRF位于源MVRF上

此解决方案无法通过操作路由目标的导入和导出语句或仅通过更改RPF使用的路由策略来运行。

技巧有助于修复入口PE路由器上的RPF。诀窍是在接收方VRF中添加静态路由，并将其指向入口PE路由器上的源VRF。

静态路由在接收方VRF中通告源地址。此静态路由在BGP中标记了新的唯一路由目标，以便此路由可以与源VRF中通告的相同路由区分。这避免了将入口PE上的接收方VRF的静态路由导入其他PE路由器的接收方VRF，从而导致路由问题。

mVPN Extranet on IOS-XR: Profile 14 - Option 2. The receiver MVRF is on the source MVRF IOS-XR上的mVPN外联网：配置文件14 — 选项2接收方MVRF位于源MVRF上

图像12配置文件14 — 选项2接收方MVRF位于源MVRF上

PE2:

router static
 vrf one
  address-family ipv4 unicast
   10.0.0.15/32 vrf two GigabitEthernet0/0/0/2 10.2.15.15
  !
 !
!

router bgp 65000
 vrf one
  rd 65000:1002
  address-family ipv4 unicast
   redistribute connected
redistribute static
  !

route-policy export-policy-extranet
  if destination in (10.0.0.15/32) then
    set extcommunity rt rt-set-static-extranet
  else
    pass
  endif
end-policy
!

extcommunity-set rt rt-set-static-extranet
  65000:6666
end-set
!

RP/0/0/CPU0:PE2#show route vrf one 10.0.0.15/32
Routing entry for 10.0.0.15/32
  Known via "static", distance 1, metric 0
  Installed Nov 20 13:48:25.525 for 04:50:15
  Routing Descriptor Blocks
    10.2.15.15, via GigabitEthernet0/0/0/2
      Nexthop in Vrf: "two", Table: "default", IPv4 Unicast, Table Id: 0xe0000011
      Route metric is 0, Wt is 1
  No advertising protos.

RP/0/0/CPU0:PE2#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [1/0]
    via VRF:two,GigabitEthernet0/0/0/2 with rpf neighbor 10.2.15.15

出口PE在入口PE上看到设置了路由目标的BGP路由。

RP/0/0/CPU0:PE3#show bgp vrf one 10.0.0.15/32
BGP routing table entry for 10.0.0.15/32, Route Distinguisher: 65000:1003
Versions:
  Process           bRIB/RIB  SendTblVer
  Speaker                  8           8
Last Modified: Nov 20 13:49:49.569 for 04:51:19
Paths: (1 available, best #1)
  Advertised to CE peers (in unique update groups):
    10.3.13.13
  Path #1: Received by speaker 0
  Advertised to CE peers (in unique update groups):
    10.3.13.13
  Local
    10.0.0.2 (metric 3) from 10.0.0.4 (10.0.0.2)
      Received Label 24003
      Origin incomplete, metric 0, localpref 100, valid, internal, best, group-best, import-candidate, imported
      Received Path ID 0, Local Path ID 1, version 8
      Extended community: VRF Route Import:10.0.0.2:16 Source AS:65000:0 RT:65000:6666
      Originator: 10.0.0.2, Cluster list: 10.0.0.4
      Connector: type: 1, Value:65000:1002:10.0.0.2
      Source AFI: VPNv4 Unicast, Source VRF: default, Source Route Distinguisher: 65000:1002

出口PE在源VRF、VRF PE中具有到入口PE的正确RPF条目。

RP/0/0/CPU0:PE3#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [200/0]
    via Lmdtone with rpf neighbor 10.0.0.2
    Connector: 65000:1002:10.0.0.2, Nexthop: 10.0.0.2

RP/0/0/CPU0:PE3#show mrib vrf one route 232.1.1.4 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.4) RPF nbr: 10.0.0.2 Flags: RPF
  Up: 04:54:24
  Incoming Interface List
    Lmdtone Flags: A LMI, Up: 00:05:48
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 04:54:24

入口PE在源和接收方VRF中都有外联网条目。源VRF:

RP/0/0/CPU0:PE2#show mrib vrf two route 232.1.1.4 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.4) RPF nbr: 10.2.15.15 Flags: RPF EX
  Up: 00:06:36
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A, Up: 00:06:36
  Outgoing Interface List
    Lmdtone Flags: F LMI EX TR, Up: 00:06:36

接收器VRF:

RP/0/0/CPU0:PE2#show mrib vrf one route 232.1.1.4 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.4) RPF TID: 0xe0000011 Flags: RPF EX
  Up: 00:06:28
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A EX, Up: 00:06:28
  Outgoing Interface List
    Lmdtone Flags: F LMI TR, Up: 00:06:28

示例2.3.选项3.使用传输MVRF

mVPN Extranet on IOS-XR: Profile 14 - Option 3. A transport MVRF is used IOS-XR上的mVPN外联网：配置文件14 — 选项3使用传输MVRF

图像13配置文件14 — 选项3使用传输MVRF

传输VRF不需要任何接口。但是，其他所有东西都需要存在：VRF配置、BGP配置、组播路由配置和路由器PIM配置。

选项1的配置在出口PE、PE1上，而选项2的配置在入口PE、PE2上。PE1:

vrf transport
 address-family ipv4 unicast
  import route-target
   65000:65000
  !
  export route-target
   65000:65000
  !

router bgp 65000
…
!
 vrf transport
  rd 65000:123
  address-family ipv4 unicast
   redistribute static
  !
  address-family ipv4 mvpn
  !

multicast-routing
 vrf one
  address-family ipv4
   interface GigabitEthernet0/0/0/1
    enable
   !
   mdt source Loopback0
   bgp auto-discovery mldp
   !
   mdt partitioned mldp ipv4 p2mp
  !
 !
 !
 vrf transport
  address-family ipv4
   mdt source Loopback0
   bgp auto-discovery mldp
   !
   mdt partitioned mldp ipv4 p2mp
  !

router pim
 vrf one
  address-family ipv4
   rpf topology route-policy profile-14
   mdt c-multicast-routing bgp
   !
   ssm range SSM-range-vrf-one
  !
 !
 vrf transport
  address-family ipv4
   rpf topology route-policy profile-14
   mdt c-multicast-routing bgp
   !
   ssm range SSM-range-vrf-transport
  !

PE2:

vrf transport
 address-family ipv4 unicast
  import route-target
   65000:65000
  !
  export route-target
   65000:65000
  !
 !

!
route-policy vrf-one-profile-14
  set core-tree mldp-partitioned-p2mp
end-policy

!
route-policy export-policy-extranet
  if destination in (10.0.0.15/32) then
    set extcommunity rt rt-set-static-extranet
  else
    pass
  endif
end-policy

!
router static
 !
 vrf transport
  address-family ipv4 unicast
   10.0.0.15/32 vrf two GigabitEthernet0/0/0/2 10.2.15.15
  !
 !
!

router bgp 65000
…
vrf transport
  address-family ipv4
   mdt source Loopback0
   interface all enable
   bgp auto-discovery mldp
   !
   mdt partitioned mldp ipv4 p2mp
  !

router pim
 address-family ipv4
  ssm range SSM-range
 !
!
 vrf two
  address-family ipv4
   rpf topology route-policy profile-14
   mdt c-multicast-routing bgp
   !
   ssm range SSM-range-vrf-two
  !
 !
 vrf transport
  address-family ipv4
   rpf topology route-policy profile-14
   mdt c-multicast-routing bgp
   !
   ssm range SSM-range-vrf-transport
  !

multicast-routing
!
 vrf two
  address-family ipv4
   interface GigabitEthernet0/0/0/2
    enable
   !
   mdt source Loopback0
   bgp auto-discovery mldp
   !
   mdt partitioned mldp ipv4 p2mp
  !
 !
 vrf transport
  address-family ipv4
   mdt source Loopback0
   bgp auto-discovery mldp
   !
   mdt partitioned mldp ipv4 p2mp
  !

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF TID: 0xe0000012 Flags: RPF EX
  Up: 1d03h
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 1d03h

注意：VRF One中没有MRIB条目的传入接口。这对流量转发没有影响。

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [4294967295/4294967295]
    via Null with rpf neighbor 0.0.0.0

注意：RPF在出口PE的VRF ONE中发生故障。这对流量转发没有影响。

RP/0/0/CPU0:PE1#show pim vrf transport rpf 10.0.0.15
Table: IPv4-Unicast-default
* 10.0.0.15/32 [200/0]
    via Lmdttransport with rpf neighbor 10.0.0.2
    Connector: 65000:456:10.0.0.2, Nexthop: 10.0.0.2

RP/0/0/CPU0:PE1#show mrib vrf transport route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF nbr: 10.0.0.2 Flags: RPF EX
  Up: 00:48:15
  Incoming Interface List
    Lmdttransport Flags: A LMI, Up: 00:22:51
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS EX, Up: 00:48:15

RP/0/0/CPU0:PE1#show route vrf transport
Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, su - IS-IS summary null, * - candidate default
       U - per-user static route, o - ODR, L - local, G  - DAGR, l - LISP
       A - access/subscriber, a - Application route
       M - mobile route, r - RPL, t - Traffic Engineering, (!) - FRR Backup path

Gateway of last resort is not set

B    10.0.0.15/32 [200/0] via 10.0.0.2 (nexthop in vrf default), 00:40:06

RP/0/0/CPU0:PE2#show mrib vrf transport route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF TID: 0xe0000011 Flags: RPF EX
  Up: 00:25:25
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A EX, Up: 00:25:25
  Outgoing Interface List
    Lmdttransport Flags: F LMI TR, Up: 00:25:25

RP/0/0/CPU0:PE2#show mrib vrf two route 232.1.1.3 10.0.0.15

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.15,232.1.1.3) RPF nbr: 10.2.15.15 Flags: RPF EX
  Up: 00:25:55
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A, Up: 00:25:55
  Outgoing Interface List
    Lmdttransport Flags: F LMI EX TR, Up: 00:25:55

示例2.4.本地外联网

mVPN Extranet on IOS-XR: Profile 14 - Local Extranet IOS-XR上的mVPN外联网：简档14 — 本地外联网

图14配置文件14 — 本地外联网

源VRF的源路由必须导入接收器VRF。

vrf one
 address-family ipv4 unicast
  import route-target
   65000:1
   65000:2
  !
  export route-target
   65000:1
  !

vrf two
 address-family ipv4 unicast
  import route-target
   65000:2
  !
  export route-target
   65000:2
  !

RP/0/0/CPU0:PE1#show route vrf one 10.0.0.14/32
Routing entry for 10.0.0.14/32
  Known via "bgp 65000", distance 20, metric 0
  Tag 65004, type external
  Installed Nov 22 10:52:10.451 for 00:01:22
  Routing Descriptor Blocks
    10.1.14.14, from 10.1.14.14, BGP external
      Nexthop in Vrf: "two", Table: "default", IPv4 Unicast, Table Id: 0xe0000011
      Route metric is 0
  No advertising protos.

RP/0/0/CPU0:PE1#show mrib vrf one route 232.1.1.2 10.0.0.14

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.14,232.1.1.2) RPF TID: 0xe0000011 Flags: RPF EX
  Up: 1d21h
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A EX, Up: 00:02:07
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS, Up: 1d21h

RP/0/0/CPU0:PE1#show pim vrf one rpf 10.0.0.14
Table: IPv4-Unicast-default
* 10.0.0.14/32 [20/0]
    via VRF:two with rpf neighbor 10.0.0.1

RP/0/0/CPU0:PE1#show mrib vrf two route 232.1.1.2 10.0.0.14

IP Multicast Routing Information Base
Entry flags: L - Domain-Local Source, E - External Source to the Domain,
    C - Directly-Connected Check, S - Signal, IA - Inherit Accept,
    IF - Inherit From, D - Drop, ME - MDT Encap, EID - Encap ID,
    MD - MDT Decap, MT - MDT Threshold Crossed, MH - MDT interface handle
    CD - Conditional Decap, MPLS - MPLS Decap, EX - Extranet
    MoFE - MoFRR Enabled, MoFS - MoFRR State, MoFP - MoFRR Primary
    MoFB - MoFRR Backup, RPFID - RPF ID Set, X - VXLAN
Interface flags: F - Forward, A - Accept, IC - Internal Copy,
    NS - Negate Signal, DP - Don't Preserve, SP - Signal Present,
    II - Internal Interest, ID - Internal Disinterest, LI - Local Interest,
    LD - Local Disinterest, DI - Decapsulation Interface
    EI - Encapsulation Interface, MI - MDT Interface, LVIF - MPLS Encap,
    EX - Extranet, A2 - Secondary Accept, MT - MDT Threshold Crossed,
    MA - Data MDT Assigned, LMI - mLDP MDT Interface, TMI - P2MP-TE MDT Interface
    IRMI - IR MDT Interface, TRMI - TREE SID MDT Interface

(10.0.0.14,232.1.1.2) RPF nbr: 10.1.14.14 Flags: RPF EX
  Up: 00:02:47
  Incoming Interface List
    GigabitEthernet0/0/0/2 Flags: A, Up: 00:02:47
  Outgoing Interface List
    GigabitEthernet0/0/0/1 Flags: F NS EX, Up: 00:02:47

修订历史记录

版本	发布日期	备注
1.0	13-Dec-2021	初始版本

由思科工程师提供

Luc De Ghein
Cisco TAC Engineer

此文档是否有帮助?

反馈

联系我们

提交支持案例
(需要思科服务合同)

在Cisco IOS-XR上配置mVPN外联网并排除故障

下载选项

非歧视性语言

关于此翻译

目录

简介

先决条件

要求

使用的组件

mVPN简介

方案

支持概述

选项 1 支持

选项 2 支持

Examples

配置文件0

示例1.1.选项1.源MVRF位于接收方MVRF上

示例1.2.选项2.接收方MVRF位于源MVRF上

示例1.3.选项3.使用传输MVRF

IOS-XR上的mVPN外联网：配置文件0 — 选项3使用传输MVRF

示例1.4.本地外联网

简档14

示例2.1。选项1.源MVRF位于接收方MVRF上

示例2.2.选项2.接收方MVRF位于源MVRF上

示例2.3.选项3.使用传输MVRF

示例2.4.本地外联网

修订历史记录

由思科工程师提供

此文档是否有帮助?

联系我们