配置Dot1q终结子接口接入L2VPN示例

NE20E-S V800R012C00SPC300 配置指南 - 局域网与城域网接入 04

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从典型的应用场景描述了Dot1q终结子接口接入L2VPN（Layer 2 virtual private network）后，如何保证发送带有一层VLAN Tag报文的终端用户通过L2VPN网络通信。

组网需求

如果通过终结子接口接入L2VPN网络，为了保证用户之间互通，需要配置终结子接口绑定VSI（Virtual Switching Instance）/VPWS（Virtual Private Wire Service）接入L2VPN网络。

如图8-21所示，CE通过路由器接入PE，路由器发送到PE的用户报文带有一层VLAN Tag，并通过Dot1q终结子接口接入L2VPN用户网络。为了保证CE1～CE6的用户网络可以互通，需要在PE1、PE2、PE3上部署Dot1q终结子接口绑定VSI/VPWS接入L2VPN网络。

图8-21 配置Dot1q终结子接口接入L2VPN组网图

本例中interface1，interface2，interface3，subinterface1.1分别代表GE0/1/1，GE0/1/2，GE0/1/3，GE0/1/1.1。

注意事项

L2VPN包括VPWS和VPLS。

VPWS

VPWS（Virtual Private Wire Service）是使用IP网络对传统租用线业务的模拟和仿真技术。它提供了非对称、低成本的DDN（Digital Data Network）业务。从虚拟租用线两端的用户来看，该虚拟租用线近似于传统的租用线。VPWS技术是一种点到点的虚拟专线技术，能够支持几乎所有的链路层协议。
VPLS

VPLS可以实现多点到多点的VPN组网，利用VPLS技术，服务提供商可以通过MPLS骨干网向用户提供基于以太的多点业务。

本示例以VPLS组网为例说明Dot1q终结子接口如何接入L2VPN网络，实现CE间互通。如果L2VPN网络是VPWS网络时，只有PE的用户侧子接口配置不同，需要配置Dot1q终结子接口绑定L2VC接入L2VPN网络，其他设备配置相同。

配置思路

采用如下的思路配置Dot1q终结子接口接入L2VPN：

分别配置CE上接口IP地址，CE发往路由器的报文不带VLAN Tag。
分别在路由器上创建VLAN，确定用户所属的VLAN。
分别在路由器、CE上配置二层转发功能，使得路由器发往PE的报文带有一层VLAN Tag。
分别在PE上配置VPLS、Dot1q终结子接口，将VSI与Dot1q终结子接口绑定，实现用户通过VPLS网络通信。
1. 分别在PE上配置路由协议，保证网络三层互通。
  
  本示例以OSPF（Open Shortest Path First）为例。
2. 分别在PE上配置MPLS（Multiprotocol Label Switching）基本能力和MPLS LDP（Label Distribution Protoco），建立MPLS LSP（Label Switched Path）。
3. 分别在PE上使能MPLS L2VPN，全局使能设备L2VPN功能。
4. 分别在PE上配置VSI和Dot1q终结子接口，并将VSI与Dot1q终结子接口绑定，实现Dot1q终结子接口接入L2VPN。

数据准备

为完成此配置例，需准备如下的数据：

用户所属的VLAN ID、用户的IP地址。
路由器与CE连接的接口名称、IP地址。
PE与路由器连接的接口名称、IP地址。
PE之间连接的接口名称、IP地址。
PE上的VSI ID（必须一致）、MPLS LSR-ID、VSI名称及绑定VSI的接口。

操作步骤

在CE上配置接口IP地址

# 配置CE1。

<HUAWEI> system-view

[~HUAWEI] sysname CE1

[*HUAWEI] commit

[~CE1] interface gigabitethernet 0/1/1

[*CE1-GigabitEthernet0/1/1] undo shutdown

[*CE1-GigabitEthernet0/1/1] ip address 10.1.1.1 24

[*CE1-GigabitEthernet0/1/1] quit

[*CE1] commit

# 配置CE2。

<HUAWEI> system-view

[~HUAWEI] sysname CE2

[*HUAWEI] commit

[~CE2] interface gigabitethernet 0/1/1

[*CE2-GigabitEthernet0/1/1] undo shutdown

[*CE2-GigabitEthernet0/1/1] ip address 10.1.1.2 24

[*CE2-GigabitEthernet0/1/1] quit

[*CE2] commit

# 配置CE3。

<HUAWEI> system-view

[~HUAWEI] sysname CE3

[*HUAWEI] commit

[~CE3] interface gigabitethernet 0/1/1

[*CE3-GigabitEthernet0/1/1] undo shutdown

[*CE3-GigabitEthernet0/1/1] ip address 10.1.1.3 24

[*CE3-GigabitEthernet0/1/1] quit

[*CE3] commit

# 配置CE4。

<HUAWEI> system-view

[~HUAWEI] sysname CE4

[*HUAWEI] commit

[~CE4] interface gigabitethernet 0/1/1

[*CE4-GigabitEthernet0/1/1] undo shutdown

[*CE4-GigabitEthernet0/1/1] ip address 10.1.1.4 24

[*CE4-GigabitEthernet0/1/1] quit

[*CE4] commit

# 配置CE5。

<HUAWEI> system-view

[~HUAWEI] sysname CE5

[*HUAWEI] commit

[~CE5] interface gigabitethernet 0/1/1

[*CE5-GigabitEthernet0/1/1] undo shutdown

[*CE5-GigabitEthernet0/1/1] ip address 10.1.1.5 24

[*CE5-GigabitEthernet0/1/1] quit

[*CE5] commit

# 配置CE6。

<HUAWEI> system-view

[~HUAWEI] sysname CE6

[*HUAWEI] commit

[~CE6] interface gigabitethernet 0/1/1

[*CE6-GigabitEthernet0/1/1] undo shutdown

[*CE6-GigabitEthernet0/1/1] ip address 10.1.1.6 24

[*CE6-GigabitEthernet0/1/1] quit

[*CE6] commit

在路由器上创建VLAN，并关联二层端口和VLAN

# 配置DeviceA。

<HUAWEI> system-view

[~HUAWEI] sysname DeviceA

[*HUAWEI] commit

[~DeviceA] vlan batch 10 20

[*DeviceA] interface gigabitethernet 0/1/1

[*DeviceA-GigabitEthernet0/1/1] undo shutdown

[*DeviceA-GigabitEthernet0/1/1] portswitch

[*DeviceA-GigabitEthernet0/1/1] port link-type access

[*DeviceA-GigabitEthernet0/1/1] port default vlan 10

[*DeviceA-GigabitEthernet0/1/1] quit

[*DeviceA] interface gigabitethernet 0/1/2

[*DeviceA-GigabitEthernet0/1/2] undo shutdown

[*DeviceA-GigabitEthernet0/1/2] portswitch

[*DeviceA-GigabitEthernet0/1/2] port link-type access

[*DeviceA-GigabitEthernet0/1/2] port default vlan 20

[*DeviceA-GigabitEthernet0/1/2] quit

[*DeviceA] commit

# 配置DeviceB。

<HUAWEI> system-view

[~HUAWEI] sysname DeviceB

[*HUAWEI] commit

[~DeviceB] vlan batch 10 20

[*DeviceB] interface gigabitethernet 0/1/1

[*DeviceB-GigabitEthernet0/1/1] undo shutdown

[*DeviceB-GigabitEthernet0/1/1] portswitch

[*DeviceB-GigabitEthernet0/1/1] port link-type access

[*DeviceB-GigabitEthernet0/1/1] port default vlan 10

[*DeviceB-GigabitEthernet0/1/1] quit

[*DeviceB] interface gigabitethernet 0/1/2

[*DeviceB-GigabitEthernet0/1/2] undo shutdown

[*DeviceB-GigabitEthernet0/1/2] portswitch

[*DeviceB-GigabitEthernet0/1/2] port link-type access

[*DeviceB-GigabitEthernet0/1/2] port default vlan 20

[*DeviceB-GigabitEthernet0/1/2] quit

[*DeviceB] commit

# 配置DeviceC。

<HUAWEI> system-view

[~HUAWEI] sysname DeviceC

[*HUAWEI] commit

[~DeviceC] vlan batch 10 20

[*DeviceC] interface gigabitethernet 0/1/1

[*DeviceC-GigabitEthernet0/1/1] undo shutdown

[*DeviceC-GigabitEthernet0/1/1] portswitch

[*DeviceC-GigabitEthernet0/1/1] port link-type access

[*DeviceC-GigabitEthernet0/1/1] port default vlan 10

[*DeviceC-GigabitEthernet0/1/1] quit

[*DeviceC] interface gigabitethernet 0/1/2

[*DeviceC-GigabitEthernet0/1/2] undo shutdown

[*DeviceC-GigabitEthernet0/1/2] portswitch

[*DeviceC-GigabitEthernet0/1/2] port link-type access

[*DeviceC-GigabitEthernet0/1/2] port default vlan 20

[*DeviceC-GigabitEthernet0/1/2] quit

[*DeviceC] commit

配置二层转发功能

# 配置DeviceA。

[~DeviceA] interface gigabitethernet 0/1/3

[*DeviceA-GigabitEthernet0/1/3] undo shutdown

[*DeviceA-GigabitEthernet0/1/3] portswitch

[*DeviceA-GigabitEthernet0/1/3] port link-type trunk

[*DeviceA-GigabitEthernet0/1/3] port trunk allow-pass vlan 10 20

[*DeviceA-GigabitEthernet0/1/3] quit

[*DeviceA] commit

# 配置DeviceB。

[~DeviceB] interface gigabitethernet 0/1/3

[*DeviceB-GigabitEthernet0/1/3] undo shutdown

[*DeviceB-GigabitEthernet0/1/3] portswitch

[*DeviceB-GigabitEthernet0/1/3] port link-type trunk

[*DeviceB-GigabitEthernet0/1/3] port trunk allow-pass vlan 10 20

[*DeviceB-GigabitEthernet0/1/3] quit

[*DeviceB] commit

# 配置DeviceC。

[~DeviceC] interface gigabitethernet 0/1/3

[*DeviceC-GigabitEthernet0/1/3] undo shutdown

[*DeviceC-GigabitEthernet0/1/3] portswitch

[*DeviceC-GigabitEthernet0/1/3] port link-type trunk

[*DeviceC-GigabitEthernet0/1/3] port trunk allow-pass vlan 10 20

[*DeviceC-GigabitEthernet0/1/3] quit

[*DeviceC] commit

如果设备的接口已经是二层接口，则不需要执行portswitch命令。

配置VPLS

分别在PE上配置OSPF协议。

配置PE的各接口地址。配置OSPF时，注意需要发布PE的32位Loopback接口地址。

# 配置PE1。

<HUAWEI> system-view

[~HUAWEI] sysname PE1

[*HUAWEI] commit

[~PE1] interface loopback 1

[*PE1-LoopBack1] ip address 1.1.1.9 32

[*PE1-LoopBack1] quit

[*PE1] interface gigabitethernet 0/1/2

[*PE1-GigabitEthernet0/1/2] ip address 192.168.1.1 24

[*PE1-GigabitEthernet0/1/2] undo shutdown

[*PE1-GigabitEthernet0/1/2] quit

[*PE1] interface gigabitethernet 0/1/3

[*PE1-GigabitEthernet0/1/3] ip address 192.168.3.1 24

[*PE1-GigabitEthernet0/1/3] undo shutdown

[*PE1-GigabitEthernet0/1/3] quit

[*PE1] ospf

[*PE1-ospf-1] area 0

[*PE1-ospf-1-area-0.0.0.0] network 1.1.1.9 0.0.0.0

[*PE1-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255

[*PE1-ospf-1-area-0.0.0.0] network 192.168.3.0 0.0.0.255

[*PE1-ospf-1-area-0.0.0.0] quit

[*PE1-ospf-1] quit

[*PE1] commit

# 配置PE2。

<HUAWEI> system-view

[~HUAWEI] sysname PE2

[*HUAWEI] commit

[~PE2] interface LoopBack 1

[*PE2-LoopBack1] ip address 2.2.2.9 32

[*PE2-LoopBack1] quit

[*PE2] interface gigabitethernet 0/1/2

[*PE2-GigabitEthernet0/1/2] ip address 192.168.2.2 24

[*PE2-GigabitEthernet0/1/2] undo shutdown

[*PE2-GigabitEthernet0/1/2] quit

[*PE2] interface gigabitethernet 0/1/3

[*PE2-GigabitEthernet0/1/3] ip address 192.168.3.2 24

[*PE2-GigabitEthernet0/1/3] undo shutdown

[*PE2-GigabitEthernet0/1/3] quit

[*PE2] ospf

[*PE2-ospf-1] area 0

[*PE2-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0

[*PE2-ospf-1-area-0.0.0.0] network 192.168.2.0 0.0.0.255

[*PE2-ospf-1-area-0.0.0.0] network 192.168.3.0 0.0.0.255

[*PE2-ospf-1-area-0.0.0.0] quit

[*PE2-ospf-1] quit

[*PE2] commit

# 配置PE3。

<HUAWEI> system-view

[~HUAWEI] sysname PE3

[*HUAWEI] commit

[~PE3] interface loopback 1

[*PE3-LoopBack1] ip address 3.3.3.9 32

[*PE3-LoopBack1] quit

[*PE3] interface gigabitethernet 0/1/2

[*PE3-GigabitEthernet0/1/2] ip address 192.168.1.2 24

[*PE3-GigabitEthernet0/1/2] undo shutdown

[*PE3-GigabitEthernet0/1/2] quit

[*PE3] interface gigabitethernet 0/1/3

[*PE3-GigabitEthernet0/1/3] ip address 192.168.2.1 24

[*PE3-GigabitEthernet0/1/3] undo shutdown

[*PE3-GigabitEthernet0/1/3] quit

[*PE3] ospf

[*PE3-ospf-1] area 0

[*PE3-ospf-1-area-0.0.0.0] network 3.3.3.9 0.0.0.0

[*PE3-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255

[*PE3-ospf-1-area-0.0.0.0] network 192.168.2.0 0.0.0.255

[*PE3-ospf-1-area-0.0.0.0] quit

[*PE3-ospf-1] quit

[*PE3] commit

完成上述步骤后，PE1和PE2、PE1和PE3之间通过OSPF协议发现的对方Loopback1的IP路由，并能互相Ping通。

以PE1的显示为例。

[~PE1] display ip routing-table

Route Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole route
------------------------------------------------------------------------------
Routing Table : _public_
         Destinations : 14       Routes : 14

Destination/Mask    Proto  Pre  Cost        Flags NextHop         Interface

        1.1.1.9/32  Direct 0    0             D  127.0.0.1       LoopBack1
        2.2.2.9/32  OSPF   10   1             D  192.168.3.2     GigabitEthernet0/1/3
        3.3.3.9/32  OSPF   10   1             D  192.168.1.2     GigabitEthernet0/1/2
    192.168.1.0/24  Direct 0    0             D  192.168.1.1     GigabitEthernet0/1/2
    192.168.1.1/32  Direct 0    0             D  127.0.0.1       GigabitEthernet0/1/2
  192.168.1.255/32  Direct 0    0             D  127.0.0.1       GigabitEthernet0/1/2
    192.168.2.0/24  OSPF   10   2             D  192.168.3.2     GigabitEthernet0/1/3
                    OSPF   10   2             D  192.168.1.2     GigabitEthernet0/1/2
    192.168.3.0/24  Direct 0    0             D  192.168.3.1     GigabitEthernet0/1/3
    192.168.3.1/32  Direct 0    0             D  127.0.0.1       GigabitEthernet0/1/3
  192.168.3.255/32  Direct 0    0             D  127.0.0.1       GigabitEthernet0/1/3
       127.0.0.0/8  Direct 0    0             D  127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct 0    0             D  127.0.0.1       InLoopBack0
127.255.255.255/32  Direct 0    0             D  127.0.0.1       InLoopBack0
255.255.255.255/32  Direct 0    0             D  127.0.0.1       InLoopBack0

[*PE1] ping 192.168.2.2

  PING 192.168.2.2: 56  data bytes, press CTRL_C to break
    Reply from 192.168.2.2: bytes=56 Sequence=1 ttl=254 time=6 ms
    Reply from 192.168.2.2: bytes=56 Sequence=2 ttl=254 time=2 ms
    Reply from 192.168.2.2: bytes=56 Sequence=3 ttl=254 time=1 ms
    Reply from 192.168.2.2: bytes=56 Sequence=4 ttl=254 time=2 ms
    Reply from 192.168.2.2: bytes=56 Sequence=5 ttl=254 time=1 ms

  --- 192.168.2.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 1/2/6 ms

使能MPLS基本能力和LDP。

# 配置PE1。

[*PE1] mpls lsr-id 1.1.1.9

[*PE1] mpls

[*PE1-mpls] quit

[*PE1] mpls ldp

[*PE1-mpls-ldp] quit

[*PE1] interface gigabitethernet 0/1/2

[*PE1-GigabitEthernet0/1/2] mpls

[*PE1-GigabitEthernet0/1/2] mpls ldp

[*PE1-GigabitEthernet0/1/2] quit

[*PE1] interface gigabitethernet 0/1/3

[*PE1-GigabitEthernet0/1/3] mpls

[*PE1-GigabitEthernet0/1/3] mpls ldp

[*PE1-GigabitEthernet0/1/3] quit

[*PE1] commit

# 配置PE2。

[~PE2] mpls lsr-id 2.2.2.9

[*PE2] mpls

[*PE2-mpls] quit

[*PE2] mpls ldp

[*PE2-mpls-ldp] quit

[*PE2] interface gigabitethernet0/1/2

[*PE2-GigabitEthernet0/1/2] mpls

[*PE2-GigabitEthernet0/1/2] mpls ldp

[*PE2-GigabitEthernet0/1/2] quit

[*PE2] interface gigabitethernet0/1/3

[*PE2-GigabitEthernet0/1/3] mpls

[*PE2-GigabitEthernet0/1/3] mpls ldp

[*PE2-GigabitEthernet0/1/3] quit

[*PE2] commit

# 配置PE3。

[~PE3] mpls lsr-id 3.3.3.9

[*PE3] mpls

[*PE3-mpls] quit

[*PE3] mpls ldp

[*PE3-mpls-ldp] quit

[*PE3] interface gigabitethernet 0/1/2

[*PE3-GigabitEthernet0/1/2] mpls

[*PE3-GigabitEthernet0/1/2] mpls ldp

[*PE3-GigabitEthernet0/1/2] quit

[*PE3] interface gigabitethernet 0/1/3

[*PE3-GigabitEthernet0/1/3] mpls

[*PE3-GigabitEthernet0/1/3] mpls ldp

[*PE3-GigabitEthernet0/1/3] quit

[*PE3] commit

上述配置完成后，PE1与PE2、PE1与PE3之间建立LDP会话，执行命令display mpls ldp session可以看到显示结果中Status项为“Operational”。

以PE1的显示为例。

[~PE1] display mpls ldp session

 LDP Session(s) in Public Network
 Codes: LAM(Label Advertisement Mode), SsnAge Unit(DDDD:HH:MM)
 An asterisk (*) before a session means the session is being deleted.
--------------------------------------------------------------------------
 PeerID             Status       LAM  SsnRole  SsnAge       KASent/Rcv
--------------------------------------------------------------------------
 2.2.2.9:0          Operational  DU   Passive  0000:00:01   6/6
 3.3.3.9:0          Operational  DU   Passive  0000:00:00   1/1
--------------------------------------------------------------------------
TOTAL: 2 Session(s) Found.

如果PE之间非直连，还需要使用mpls ldp remote-peer和remote-ip命令，在PE之间建立远端LDP会话。

使能MPLS L2VPN。

# 配置PE1。

[*PE1] mpls l2vpn

[*PE1-l2vpn] quit

[*PE1] commit

# 配置PE2。

[~PE2] mpls l2vpn

[*PE2-l2vpn] quit

[*PE2] commit

# 配置PE3。

[~PE3] mpls l2vpn

[*PE3-l2vpn] quit

[*PE3] commit

配置VSI和Dot1q终结子接口，并将VSI与Dot1q终结子接口绑定。

# 配置PE1。

[~PE1] vsi ldp1 static

[*PE1-vsi-ldp1] pwsignal ldp

[*PE1-vsi-ldp1-ldp] vsi-id 2

[*PE1-vsi-ldp1-ldp] peer 2.2.2.9

[*PE1-vsi-ldp1-ldp] peer 3.3.3.9

[*PE1-vsi-ldp1-ldp] quit

[*PE1-vsi-ldp1] quit

[*PE1] interface gigabitethernet 0/1/1.1

[*PE1-GigabitEthernet0/1/1.1] control-vid 1 dot1q-termination

[*PE1-GigabitEthernet0/1/1.1] dot1q termination vid 10

[*PE1-GigabitEthernet0/1/1.1] dot1q termination vid 20

[*PE1-GigabitEthernet0/1/1.1] l2 binding vsi ldp1

[*PE1-GigabitEthernet0/1/1.1] quit

[*PE1] commit

# 配置PE2。

[~PE2] vsi ldp1 static

[*PE2-vsi-ldp1] pwsignal ldp

[*PE2-vsi-ldp1-ldp] vsi-id 2

[*PE2-vsi-ldp1-ldp] peer 1.1.1.9

[*PE2-vsi-ldp1-ldp] peer 3.3.3.9

[*PE2-vsi-ldp1-ldp] quit

[*PE2-vsi-ldp1] quit

[*PE2] interface gigabitethernet 0/1/1.1

[*PE2-GigabitEthernet0/1/1.1] control-vid 1 dot1q-termination

[*PE2-GigabitEthernet0/1/1.1] dot1q termination vid 10

[*PE2-GigabitEthernet0/1/1.1] dot1q termination vid 20

[*PE2-GigabitEthernet0/1/1.1] l2 binding vsi ldp1

[*PE2-GigabitEthernet0/1/1.1] quit

[*PE2] commit

# 配置PE3。

[~PE3] vsi ldp1 static

[*PE3-vsi-ldp1] pwsignal ldp

[*PE3-vsi-ldp1-ldp] vsi-id 2

[*PE3-vsi-ldp1-ldp] peer 1.1.1.9

[*PE3-vsi-ldp1-ldp] peer 2.2.2.9

[*PE3-vsi-ldp1-ldp] quit

[*PE3-vsi-ldp1] quit

[*PE3] interface gigabitethernet 0/1/1.1

[*PE3-GigabitEthernet0/1/1.1] control-vid 1 dot1q-termination

[*PE3-GigabitEthernet0/1/1.1] dot1q termination vid 10

[*PE3-GigabitEthernet0/1/1.1] dot1q termination vid 20

[*PE3-GigabitEthernet0/1/1.1] l2 binding vsi ldp1

[*PE3-GigabitEthernet0/1/1.1] quit

[*PE3] commit

同一主接口不同子接口上使用dot1q termination命令时，两个不同子接口的VLAN Tag取值范围不能有重叠。

完成上述配置后，在PE1上执行命令display vsi name ldp1 verbose，可以看到名字为ldp1的VSI建立了到PE2、PE3的PW，VSI状态为Up。

[~PE1] display vsi name ldp1 verbose

 ***VSI Name               : ldp1
    Administrator VSI      : no
    Isolate Spoken         : disable
    VSI Index              : 1
    PW Signaling           : ldp
    Member Discovery Style : static
    Bridge-domain Mode     : disable
    PW MAC Learn Style     : unqualify
    Encapsulation Type     : vlan
    MTU                    : 1500
    Diffserv Mode          : uniform
    Service Class          : --
    Color                  : --
    DomainId               : 255
    Domain Name            :
    Ignore AcState         : disable
    P2P VSI                : disable
    Create Time            : 0 days, 0 hours, 3 minutes, 8 seconds
    VSI State              : up

    VSI ID                 : 2
   *Peer Router ID         : 2.2.2.9
    primary or secondary   : primary
    ignore-standby-state   : no
    VC Label               : 17
    Peer Type              : dynamic
    Session                : up
    Tunnel ID              :0x0000000001006a5c21
    Broadcast Tunnel ID    : --
    Broad BackupTunnel ID  : --
    CKey                   : 1
    NKey                   : 3154116711
    Stp Enable             : 0
    PwIndex                : 0
    Control Word           : disable
   *Peer Router ID         : 3.3.3.9
    primary or secondary   : primary
    ignore-standby-state   : no
    VC Label               : 18
    Peer Type              : dynamic
    Session                : up
    Tunnel ID              : 0x0000000001004c4b43
    Broadcast Tunnel ID    : --
    Broad BackupTunnel ID  : --
    CKey                   : 2
    NKey                   : 3154116712
    Stp Enable             : 0
    PwIndex                : 0
    Control Word           : disable

    Interface Name         : GigabitEthernet0/1/1.1
    State                  : up
    Access Port            : false
    Last Up Time           : 2012/07/19 03:19:14
    Total Up Time          : 0 days, 0 hours, 3 minutes, 11 seconds

  **PW Information:

   *Peer Ip Address        : 2.2.2.9
    PW State               : up
    Local VC Label         : 17
    Remote VC Label        : 17
    Remote Control Word    : disable
    PW Type                : label
    Tunnel ID              : 0x0000000001006a5c21
    Broadcast Tunnel ID    : --
    Broad BackupTunnel ID  : --
    Ckey                   : 1
    Nkey                   : 3154116711
    Main PW Token          : 0x0
    Slave PW Token         : 0x0
    Tnl Type               : ldp
    OutInterface           : LDP LSP
    Backup OutInterface    :
    Stp Enable             : 0
    PW Last Up Time        : 2012/07/19 03:21:09
    PW Total Up Time       : 0 days, 0 hours, 0 minutes, 29 seconds
   *Peer Ip Address        : 3.3.3.9
    PW State               : up
    Local VC Label         : 18
    Remote VC Label        : 17
    Remote Control Word    : disable
    PW Type                : label
    Tunnel ID              : 0x0000000001004c4b43
    Broadcast Tunnel ID    : --
    Broad BackupTunnel ID  : --
    Ckey                   : 2
    Nkey                   : 3154116712
    Main PW Token          : 0x0
    Slave PW Token         : 0x0
    Tnl Type               : ldp
    OutInterface           : LDP LSP
    Backup OutInterface    :
    Stp Enable             : 0
    PW Last Up Time        : 2012/07/19 03:21:09
    PW Total Up Time       : 0 days, 0 hours, 0 minutes, 29 seconds

检查配置结果

上述配置完成后，执行命令display dot1q information termination interface，可以查看到Dot1q终结子接口配置信息，及Dot1q终结子接口绑定了VSI。

以PE1的显示为例。

[*PE1] display dot1q information termination interface gigabitethernet 0/1/1.1

  GigabitEthernet0/1/1.1
    VSI bound
    Total QinQ Num: 2
      dot1q  termination vid 10
      dot1q  termination vid 20
    Total vlan-group Num: 0
    encapsulation dot1q-termination

CE1、CE2和CE3下的主机能够相互Ping通。

[~CE1] ping 10.1.1.2

  PING 10.1.1.2: 56  data bytes, press CTRL_C to break
    Reply from 10.1.1.2: bytes=56 Sequence=1 ttl=255 time=43 ms
    Reply from 10.1.1.2: bytes=56 Sequence=2 ttl=255 time=33 ms
    Reply from 10.1.1.2: bytes=56 Sequence=3 ttl=255 time=98 ms
    Reply from 10.1.1.2: bytes=56 Sequence=4 ttl=255 time=181 ms
    Reply from 10.1.1.2: bytes=56 Sequence=5 ttl=255 time=129 ms

  --- 10.1.1.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 33/96/181 ms

[~CE1] ping 10.1.1.3

  PING 10.1.1.3: 56  data bytes, press CTRL_C to break
    Reply from 10.1.1.3: bytes=56 Sequence=1 ttl=255 time=3 ms
    Reply from 10.1.1.3: bytes=56 Sequence=2 ttl=255 time=2 ms
    Reply from 10.1.1.3: bytes=56 Sequence=3 ttl=255 time=2 ms
    Reply from 10.1.1.3: bytes=56 Sequence=4 ttl=255 time=2 ms
    Reply from 10.1.1.3: bytes=56 Sequence=5 ttl=255 time=2 ms

  --- 10.1.1.3 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 2/2/3 ms

配置文件

PE1的配置文件

#
 sysname PE1
#
 mpls lsr-id 1.1.1.9
#
 mpls
#
 mpls l2vpn
#
vsi ldp1 static
 pwsignal ldp
  vsi-id 2
  peer 3.3.3.9
  peer 2.2.2.9
#
mpls ldp
#
interface GigabitEthernet0/1/1
 undo shutdown
#
interface GigabitEthernet0/1/1.1
 encapsulation dot1q-termination
 dot1q termination vid 10
 dot1q termination vid 20
 l2 binding vsi ldp1
#
interface GigabitEthernet0/1/2
 undo shutdown
 ip address 192.168.1.1 255.255.255.252
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/3
 undo shutdown
 ip address 192.168.3.1 255.255.255.252
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 1.1.1.9 255.255.255.255
#
ospf 1
 area 0.0.0.0
  network 1.1.1.9 0.0.0.0
  network 192.168.1.0 0.0.0.3
  network 192.168.3.0 0.0.0.3
#
return

PE2的配置文件

#
 sysname PE2
#
 mpls lsr-id 2.2.2.9
#
 mpls
#
 mpls l2vpn
#
vsi ldp1 static
 pwsignal ldp
  vsi-id 2
  peer 1.1.1.9
  peer 3.3.3.9
#
mpls ldp
#
interface GigabitEthernet0/1/1
 undo shutdown
#
interface GigabitEthernet0/1/1.1
 encapsulation dot1q-termination
 dot1q termination vid 10
 dot1q termination vid 20
 l2 binding vsi ldp1
#
interface GigabitEthernet0/1/2
 undo shutdown
 ip address 192.168.2.2 255.255.255.252
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/3
 undo shutdown
 ip address 192.168.3.2 255.255.255.252
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 2.2.2.9 255.255.255.255
#
ospf 1
 area 0.0.0.0
  network 2.2.2.9 0.0.0.0
  network 192.168.3.0 0.0.0.3
  network 192.168.2.0 0.0.0.3
#
return

PE3的配置文件

#
 sysname PE3
#
 mpls lsr-id 3.3.3.9
#
 mpls
#
 mpls l2vpn
#
vsi ldp1 static
 pwsignal ldp
  vsi-id 2
  peer 1.1.1.9
  peer 2.2.2.9
#
mpls ldp
#
interface GigabitEthernet0/1/1
 undo shutdown
#
interface GigabitEthernet0/1/1.1
 encapsulation dot1q-termination
 dot1q termination vid 10
 dot1q termination vid 20
 l2 binding vsi ldp1
#
interface GigabitEthernet0/1/2
 undo shutdown
 ip address 192.168.1.2 255.255.255.252
 mpls
 mpls ldp
#
interface GigabitEthernet0/1/3
 undo shutdown
 ip address 192.168.2.1 255.255.255.252
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 3.3.3.9 255.255.255.255
#
ospf 1
 area 0.0.0.0
  network 3.3.3.9 0.0.0.0
  network 192.168.1.0 0.0.0.3
  network 192.168.2.0 0.0.0.3
#
return

DeviceA的配置文件

#
 sysname DeviceA
#
 vlan batch 10 20
#
interface GigabitEthernet0/1/1
 portswitch
 undo shutdown
 port link-type access
 port default vlan 10
#
interface GigabitEthernet0/1/2
 portswitch
 undo shutdown
 port link-type access
 port default vlan 20
#
interface GigabitEthernet0/1/3
 portswitch
 undo shutdown
 port link-type trunk
 port trunk allow-pass vlan 10 20
#
return

DeviceB的配置文件

#
 sysname DeviceB
#
 vlan batch 10 20
#
interface GigabitEthernet0/1/1
 portswitch
 undo shutdown
 port link-type access
 port default vlan 10
#
interface GigabitEthernet0/1/2
 portswitch
 undo shutdown
 port link-type access
 port default vlan 20
#
interface GigabitEthernet0/1/3
 portswitch
 undo shutdown
 port link-type trunk
 port trunk allow-pass vlan 10 20
#
return

DeviceC的配置文件

#
 sysname DeviceC
#
 vlan batch 10 20
#
interface GigabitEthernet0/1/1
 portswitch
 undo shutdown
 port link-type access
 port default vlan 10
#
interface GigabitEthernet0/1/2
 portswitch
 undo shutdown
 port link-type access
 port default vlan 20
#
interface GigabitEthernet0/1/3
 portswitch
 undo shutdown
 port link-type trunk
 port trunk allow-pass vlan 10 20
#
return

CE1的配置文件

#
 sysname CE1
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.1.1 255.255.255.0
#
return

CE2的配置文件

#
 sysname CE2
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.1.2 255.255.255.0
#
return

CE3的配置文件

#
 sysname CE3
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.1.3 255.255.255.0
#
return

CE4的配置文件

#
 sysname CE4
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.1.4 255.255.255.0
#
return

CE5的配置文件

#
 sysname CE5
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.1.5 255.255.255.0
#
return

CE6的配置文件

#
 sysname CE6
#
interface GigabitEthernet0/1/1
 undo shutdown
 ip address 10.1.1.6 255.255.255.0
#
return

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更新时间：2020-07-02

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