配置VPLS Multi-homing示例

NetEngine 8000 X V800R012C00SPC300 配置指南 - VPN 04

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当PE设备支持BGP作为BGP Multi-homing信令时，可以配置VPLS Multi-homing，解决多归属场景下环路问题。

组网需求

在VPLS网络中运营商为了提供高可靠性的服务，往往会部署冗余链路，CE通过冗余链路接入一对PE。然而这种冗余链路在提供了链路保护的同时，也存在环路风险。为解决环路问题，可以提出通过在PE上部署VPLS Multi-homing，解决多归属场景下环路问题。

如图10-48所示，PE1为CE1分配默认站点并配置MH-ID，PE3为CE3分配默认站点平配置MH-ID，由于CE2双归接入PE1和PE2，因此PE1和PE2为CE2分配站点并配置相同的MH-ID，实现的功能如下：

通过依次比较ACS（AC state）、PREF（preference，多归站点优先级）和PE-ID（BGP Router ID）的优先级，调整多归链路的优先级，实现CE的一条多归链路处于活跃状态，其他处于阻断状态，从而有效防止环路出现。
PE之间建立PW，实现端到端的业务承载。

图10-48 VPLS Multi-homing组网图

本示例中interface1，inerface2，subinterface1.1，subinterface3.1和subinterface4.1分别代表GE1/0/0，GE2/0/0，GE1/0/0.1，GE3/0/0.1和GE4/0/0.1。

配置思路

采用如下的思路配置BGP方式VPLS的基本功能：

在骨干网上配置路由协议实现互通，并配置MPLS基本功能。
在PE之间建立LSP隧道。
在PE上使能MPLS L2VPN。
在PE上使能BGP对等体交换VPLS信息的功能。
在PE上创建VSI，指定信令为BGP，指定RD和VPN-Target。
配置VPLS Multi-homing。
将AC接口与站点进行绑定。

数据准备

为完成此配置例，需准备如下的数据：

对等体的IP地址。
PE1、PE2上的VSI名称。
PE1、PE2上的BGP AS号。
PE上VSI的RD和VPN-Target，CE所属的MH-ID。
绑定VSI的接口和接口上封装的VLAN ID值。

操作步骤

配置骨干网各设备的IP地址。

# 配置PE1。

<HUAWEI> system-view

[~HUAWEI] sysname PE1

[*HUAWEI] commit

[~PE1] interface loopback1

[*PE1-Loopback1] ip address 1.1.1.9 32

[*PE1-Loopback1] quit

[*PE1] interface gigabitethernet 1/0/0

[*PE1-GigabitEthernet1/0/0] ip address 192.168.1.1 24

[*PE1-GigabitEthernet1/0/0] quit

[*PE1] interface gigabitethernet 2/0/0

[*PE1-GigabitEthernet2/0/0] ip address 192.168.10.1 24

[*PE1-GigabitEthernet2/0/0] quit

[*PE1] interface gigabitethernet 3/0/0.1

[*PE1-GigabitEthernet3/0/0.1] undo shutdown

[*PE1-GigabitEthernet3/0/0.1] quit

[*PE1] interface gigabitethernet 4/0/0.1

[*PE1-GigabitEthernet4/0/0.1] undo shutdown

[*PE1-GigabitEthernet4/0/0.1] quit

[*PE1] commit

# 配置PE2。

<HUAWEI> system-view

[~HUAWEI] sysname PE2

[*HUAWEI] commit

[~PE2] interface loopback1

[*PE2-Loopback1] ip address 2.2.2.9 32

[*PE2-Loopback1] quit

[*PE2] interface gigabitethernet 1/0/0

[*PE2-GigabitEthernet1/0/0] 192.168.20.1 24

[*PE2-GigabitEthernet1/0/0] quit

[*PE2] interface gigabitethernet 2/0/0

[*PE2-GigabitEthernet2/0/0] 192.168.10.2 24

[*PE2-GigabitEthernet2/0/0] quit

[*PE2] interface gigabitethernet 3/0/0.1

[*PE2-GigabitEthernet3/0/0.1] undo shutdown

[*PE2-GigabitEthernet3/0/0.1] quit

[*PE2] commit

# 配置PE3。

<HUAWEI> system-view

[~HUAWEI] sysname PE3

[*HUAWEI] commit

[~PE3] interface loopback1

[*PE3-Loopback1] ip address 3.3.3.9 32

[*PE3-Loopback1] quit

[*PE3] interface gigabitethernet 1/0/0

[*PE3-GigabitEthernet1/0/0] 192.168.1.2 24

[*PE3-GigabitEthernet1/0/0] quit

[*PE3] interface gigabitethernet 2/0/0

[*PE3-GigabitEthernet2/0/0] 192.168.20.2 24

[*PE3-GigabitEthernet2/0/0] quit

[*PE3] interface gigabitethernet 3/0/0.1

[*PE3-GigabitEthernet3/0/0.1] undo shutdown

[*PE3-GigabitEthernet3/0/0.1] quit

[*PE3] commit

# 配置CE1。

<HUAWEI> system-view

[~HUAWEI] sysname CE1

[*HUAWEI] commit

[~CE1] interface gigabitethernet 1/0/0.1

[*CE1-GigabitEthernet1/0/0.1] undo shutdown

[*CE1-GigabitEthernet1/0/0.1] vlan-type dot1q 10

[*CE1-GigabitEthernet1/0/0.1] ip address 10.1.1.1 24

[*CE1-GigabitEthernet1/0/0.1] quit

[*CE1] commit

# 配置CE2。

<HUAWEI> system-view

[~HUAWEI] sysname CE2

[*HUAWEI] commit

[~CE2] vlan 10

[*CE2-vlan10] quit

[*CE2] interface gigabitethernet 1/0/0

[*CE2-GigabitEthernet1/0/0] portswitch

[*CE2-GigabitEthernet1/0/0] port trunk allow-pass vlan 10

[*CE2-GigabitEthernet1/0/0] quit

[*CE2] interface gigabitethernet 2/0/0

[*CE2-GigabitEthernet2/0/0] portswitch

[*CE2-GigabitEthernet2/0/0] port trunk allow-pass vlan 10

[*CE2-GigabitEthernet2/0/0] quit

[*CE2] interface vlanif10

[*CE2-Vlanif10] ip address 10.1.1.2 24

[*CE2-Vlanif10] quit

[*CE2] commit

# 配置CE3。

<HUAWEI> system-view

[~HUAWEI] sysname CE3

[*HUAWEI] commit

[~CE3] interface gigabitethernet 1/0/0.1

[*CE3-GigabitEthernet1/0/0.1] undo shutdown

[*CE3-GigabitEthernet1/0/0.1] vlan-type dot1q 10

[*CE3-GigabitEthernet1/0/0.1] ip address 10.1.1.4 24

[*CE3-GigabitEthernet1/0/0.1] quit

[*CE3] commit

配置IGP，本示例使用OSPF。

# 配置PE1。

[~PE1] ospf 1

[*PE1-ospf-1] area 0.0.0.0

[*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 192.168.10.0 0.0.0.255

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

[*PE1-ospf-1] quit

[*PE1] commit

# 配置PE2。

[~PE2] ospf 1

[*PE2-ospf-1] area 0.0.0.0

[*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 192.168.10.0 0.0.0.255

[*PE2-ospf-1-area-0.0.0.0] network 192.168.20.0 0.0.0.255

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

[*PE2-ospf-1] quit

[*PE2] commit

# 配置PE3。

[~PE3] ospf 1

[*PE3-ospf-1] area 0.0.0.0

[*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 192.168.20.0 0.0.0.255

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

[*PE3-ospf-1] quit

[*PE3] commit

使能MPLS，建立LSP隧道

# 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 1/0/0

[*PE1-GigabitEthernet1/0/0] mpls

[*PE1-GigabitEthernet1/0/0] mpls ldp

[*PE1-GigabitEthernet1/0/0] quit

[*PE1] interface gigabitethernet 2/0/0

[*PE1-GigabitEthernet2/0/0] mpls

[*PE1-GigabitEthernet2/0/0] mpls ldp

[*PE1-GigabitEthernet2/0/0] 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 gigabitethernet 1/0/0

[*PE2-GigabitEthernet1/0/0] mpls

[*PE2-GigabitEthernet1/0/0] mpls ldp

[*PE2-GigabitEthernet1/0/0] quit

[*PE2] interface gigabitethernet 2/0/0

[*PE2-GigabitEthernet2/0/0] mpls

[*PE2-GigabitEthernet2/0/0] mpls ldp

[*PE2-GigabitEthernet2/0/0] 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 1/0/0

[*PE3-GigabitEthernet1/0/0] mpls

[*PE3-GigabitEthernet1/0/0] mpls ldp

[*PE3-GigabitEthernet1/0/0] quit

[*PE3] interface gigabitethernet 2/0/0

[*PE3-GigabitEthernet2/0/0] mpls

[*PE3-GigabitEthernet2/0/0] mpls ldp

[*PE3-GigabitEthernet2/0/0] quit

[*PE3] commit

使能BGP对等体交换VPLS信息的能力

# Configure PE1.

[~PE1] bgp 100

[*PE1-bgp] peer 2.2.2.9 as-number 100

[*PE1-bgp] peer 2.2.2.9 connect-interface loopback1

[*PE1-bgp] peer 3.3.3.9 as-number 100

[*PE1-bgp] peer 3.3.3.9 connect-interface loopback1

[*PE1-bgp] l2vpn-ad-family

[*PE1-bgp-af-l2vpn-ad] signaling vpls

[*PE1-bgp-af-l2vpn-ad] signaling multi-homing non-standard-compatible

[*PE1-bgp-af-l2vpn-ad] peer 2.2.2.9 enable

[*PE1-bgp-af-l2vpn-ad] peer 3.3.3.9 enable

[*PE1-bgp-af-l2vpn-ad] quit

[*PE1-bgp] quit

[*PE1] commit

# Configure PE2.

[~PE2] bgp 100

[*PE2-bgp] peer 1.1.1.9 as-number 100

[*PE2-bgp] peer 1.1.1.9 connect-interface loopback1

[*PE2-bgp] peer 3.3.3.9 as-number 100

[*PE2-bgp] peer 3.3.3.9 connect-interface loopback1

[*PE2-bgp] l2vpn-ad-family

[*PE2-bgp-af-l2vpn-ad] signaling vpls

[*PE2-bgp-af-l2vpn-ad] signaling multi-homing non-standard-compatible

[*PE2-bgp-af-l2vpn-ad] peer 1.1.1.9 enable

[*PE2-bgp-af-l2vpn-ad] peer 3.3.3.9 enable

[*PE2-bgp-af-l2vpn-ad] quit

[*PE2-bgp] quit

[*PE2] commit

# Configure PE3.

[~PE3] bgp 100

[*PE3-bgp] peer 1.1.1.9 as-number 100

[*PE3-bgp] peer 1.1.1.9 connect-interface loopback1

[*PE3-bgp] peer 2.2.2.9 as-number 100

[*PE3-bgp] peer 2.2.2.9 connect-interface loopback1

[*PE3-bgp] l2vpn-ad-family

[*PE3-bgp-af-l2vpn-ad] signaling vpls

[*PE3-bgp-af-l2vpn-ad] signaling multi-homing non-standard-compatible

[*PE3-bgp-af-l2vpn-ad] peer 1.1.1.9 enable

[*PE3-bgp-af-l2vpn-ad] peer 2.2.2.9 enable

[*PE3-bgp-af-l2vpn-ad] quit

[*PE3-bgp] quit

[*PE3] commit

在PE上使能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

创建多归属站点，并配置VPLS连接

# 配置PE1。

[~PE1] vsi bgp1

[*PE1-vsi-bgp1] pwsignal bgp multi-homing

[*PE1-vsi-bgp1-bgp] route-distinguisher 192.168.1.1:1

[*PE1-vsi-bgp1-bgp] vpn-target 100:1 import-extcommunity

[*PE1-vsi-bgp1-bgp] vpn-target 100:1 export-extcommunity

[*PE1-vsi-bgp1-bgp] site-range 1000 default-offset 0

[*PE1-vsi-bgp1-bgp] site default

[*PE1-vsi-bgp1-bgp-site-default] site-id 10

[*PE1-vsi-bgp1-bgp-site-site1] quit

[*PE1-vsi-bgp1-bgp] site name site2

[*PE1-vsi-bgp1-bgp-site-site2] site-id 20

[*PE1-vsi-bgp1-bgp-site-site2] quit

[*PE1-vsi-bgp1-bgp] site name best

[*PE1-vsi-bgp1-bgp-site-best] site-id 100

[*PE1-vsi-bgp1-bgp-site-best] best-site

[*PE1-vsi-bgp1-bgp-site-best] quit

[*PE1-vsi-bgp1] quit

[*PE1] commit

# 配置PE2。

[~PE2] vsi bgp1

[*PE2-vsi-bgp1] pwsignal bgp multi-homing

[*PE2-vsi-bgp1-bgp] route-distinguisher 192.168.10.2:1

[*PE2-vsi-bgp1-bgp] vpn-target 100:1 import-extcommunity

[*PE2-vsi-bgp1-bgp] vpn-target 100:1 export-extcommunity

[*PE2-vsi-bgp1-bgp] site-range 1000 default-offset 0

[*PE2-vsi-bgp1-bgp] site name site2

[*PE2-vsi-bgp1-bgp-site-site2] site-id 20

[*PE2-vsi-bgp1-bgp-site-site2] quit

[*PE2-vsi-bgp1-bgp] site name best

[*PE2-vsi-bgp1-bgp-site-best] site-id 200

[*PE2-vsi-bgp1-bgp-site-best] best-site

[*PE2-vsi-bgp1-bgp-site-best] quit

[*PE2-vsi-bgp1-bgp] quit

[*PE2-vsi-bgp1] quit

[*PE2] commit

# 配置PE3。

[~PE3] vsi bgp1

[*PE3-vsi-bgp1] pwsignal bgp multi-homing

[*PE3-vsi-bgp1-bgp] route-distinguisher 192.168.20.2:1

[*PE3-vsi-bgp1-bgp] vpn-target 100:1 import-extcommunity

[*PE3-vsi-bgp1-bgp] vpn-target 100:1 export-extcommunity

[*PE3-vsi-bgp1-bgp] site-range 1000 default-offset 0

[*PE3-vsi-bgp1-bgp] site default

[*PE3-vsi-bgp1-bgp-site-site1] site-id 30

[*PE3-vsi-bgp1-bgp-site-site1] quit

[*PE3-vsi-bgp1-bgp] site name best

[*PE3-vsi-bgp1-bgp-site-best] site-id 300

[*PE3-vsi-bgp1-bgp-site-best] best-site

[*PE3-vsi-bgp1-bgp-site-best] quit

[*PE3-vsi-bgp1-bgp] quit

[*PE3-vsi-bgp1] quit

[*PE3] commit

配置AC接口和多归属站点绑定。

# 在PE1上创建子接口，允许接收VLAN10的报文，绑定多归属站点。

[~PE1] interface gigabitethernet3/0/0.1

[*PE1-GigabitEthernet3/0/0.1] vlan-type dot1q 10

[*PE1-GigabitEthernet3/0/0.1] l2 binding vsi bgp1 multi-homing-site default

[*PE1-GigabitEthernet3/0/0.1] quit

[*PE1] interface gigabitethernet4/0/0.1

[*PE1-GigabitEthernet4/0/0.1] vlan-type dot1q 10

[*PE1-GigabitEthernet4/0/0.1] l2 binding vsi bgp1 multi-homing-site site2

[*PE1-GigabitEthernet4/0/0.1] quit

[*PE1] commit

# 在PE2上创建子接口，允许接收VLAN10的报文，绑定多归属站点。

[~PE2] interface gigabitethernet3/0/0.1

[*PE2-GigabitEthernet3/0/0.1] vlan-type dot1q 10

[*PE1-GigabitEthernet3/0/0.1] l2 binding vsi bgp1 multi-homing-site site2

[*PE2-GigabitEthernet3/0/0.1] quit

[*PE2] commit

# 在PE3上创建子接口，允许接收VLAN10的报文，绑定多归属站点。

[~PE3] interface gigabitethernet3/0/0.1

[*PE3-GigabitEthernet3/0/0.1] vlan-type dot1q 10

[*PE3-GigabitEthernet3/0/0.1] l2 binding vsi bgp1 multi-homing-site default

[*PE3-GigabitEthernet3/0/0.1] quit

[*PE3] commit

验证配置结果

完成上述配置后，在PE1上执行display vsi verbose，可以查看到VPLS Multi-homing场景中VPLS的连接信息。

[~PE1] display vsi verbose

 ***VSI Name               : bgp1
    Work Mode              : normal
    Administrator VSI      : no
    Isolate Spoken         : disable
    VSI Index              : 1
    PW Signaling           : bgpmh
    Member Discovery Style : --
    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, 3 hours, 58 minutes, 56 seconds
    VSI State              : up
    Resource Status        : --

    BGP RD                 : 192.168.1.1:1
    Import vpn target      : 100:1                  
    Export vpn target      : 100:1                  
                
    Interface Name         : GigabitEthernet3/0/0.1
    State                  : up
    Ac Block State         : unblocked
    Access Port            : false
    Last Up Time           : 2016/03/31 20:50:42
    Total Up Time          : 0 days, 3 hours, 42 minutes, 15 seconds
    Interface Name         : GigabitEthernet4/0/0.1
    State                  : up
    Ac Block State         : unblocked
    Access Port            : false
    Last Up Time           : 2016/03/31 20:51:47
    Total Up Time          : 0 days, 3 hours, 40 minutes, 43 seconds

# CE1能够Ping通CE3。

[~CE1] ping 10.1.1.4

  PING 10.1.1.4: 56  data bytes, press CTRL_C to break

    Reply from 10.1.1.4: bytes=56 Sequence=1 ttl=255 time=90 ms

    Reply from 10.1.1.4: bytes=56 Sequence=2 ttl=255 time=77 ms

    Reply from 10.1.1.4: bytes=56 Sequence=3 ttl=255 time=34 ms

    Reply from 10.1.1.4: bytes=56 Sequence=4 ttl=255 time=46 ms

    Reply from 10.1.1.4: bytes=56 Sequence=5 ttl=255 time=94 ms

  --- 10.1.1.4 ping statistics ---

    5 packet(s) transmitted

    5 packet(s) received

    0.00% packet loss

    round-trip min/avg/max = 34/68/94 ms

配置文件

CE1的配置文件

#
sysname CE1
#
interface GigabitEthernet1/0/0
 undo shutdown  
#interface GigabitEthernet1/0/0.1
 vlan-type dot1q 10
 ip address 10.1.1.1 255.255.255.0
#
return

CE2的配置文件

#
sysname CE2
#
vlan batch 10
#
interface Vlanif10
 ip address 10.1.1.2 255.255.255.0
#
interface GigabitEthernet1/0/0
 portswitch     
 undo shutdown  
 port trunk allow-pass vlan 10
#               
interface GigabitEthernet2/0/0
 portswitch     
 undo shutdown  
 port trunk allow-pass vlan 10
#          
return

CE3的配置文件

#
sysname CE3
#
interface GigabitEthernet1/0/0
 undo shutdown  
#
interface GigabitEthernet1/0/0.1
 vlan-type dot1q 10
 ip address 10.1.1.4 255.255.255.0
#
return

PE1的配置文件

#
sysname PE1
#
mpls lsr-id 1.1.1.9
#
mpls
#
mpls l2vpn
#
vsi bgp1
 pwsignal bgp multi-homing
  route-distinguisher 192.168.1.1:1
  vpn-target 100:1 import-extcommunity
  vpn-target 100:1 export-extcommunity
  site-range 1000 default-offset 0
  site name best
   site-id 100  
   best-site    
  site default  
   site-id 10   
  site name site2
   site-id 20   
#               
mpls ldp        
#
interface GigabitEthernet1/0/0
 undo shutdown
 ip address 192.168.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet2/0/0
 undo shutdown
 ip address 192.168.10.1 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet3/0/0
 undo shutdown 
#
interface GigabitEthernet3/0/0.1
 vlan-type dot1q 10
 l2 binding vsi bgp1
#
interface GigabitEthernet4/0/0
 undo shutdown 
#
interface GigabitEthernet4/0/0.1
 vlan-type dot1q 10
 l2 binding vsi bgp1 multi-homing-site site2
#
interface LoopBack1
 ip address 1.1.1.9 255.255.255.255
#
#               
bgp 100         
 peer 2.2.2.9 as-number 100
 peer 2.2.2.9 connect-interface LoopBack1
 peer 3.3.3.9 as-number 100
 peer 3.3.3.9 connect-interface LoopBack1
 #              
 ipv4-family unicast
  undo synchronization
  peer 2.2.2.9 enable
  peer 3.3.3.9 enable
 #              
 l2vpn-ad-family
  policy vpn-target
  signaling vpls
  signaling multi-homing non-standard-compatible
  peer 2.2.2.9 enable
  peer 3.3.3.9 enable
#               
ospf 1          
 area 0.0.0.0   
  network 1.1.1.9 0.0.0.0
  network 192.168.1.0 0.0.0.255
  network 192.168.10.0 0.0.0.255
#               
return

PE2的配置文件

#
sysname PE2
#
mpls lsr-id 2.2.2.9
#
mpls
#
mpls l2vpn
#
vsi bgp1
 pwsignal bgp multi-homing
  route-distinguisher 192.168.10.2:1
  vpn-target 100:1 import-extcommunity
  vpn-target 100:1 export-extcommunity
  site-range 1000 default-offset 0
  site name best
   site-id 200  
   best-site    
  site default  
  site name site2
   site-id 20   
#               
mpls ldp       
#
interface GigabitEthernet1/0/0
 undo shutdown
 ip address 192.168.20.1 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet2/0/0
 undo shutdown
 ip address 192.168.10.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet3/0/0
 undo shutdown
#
interface GigabitEthernet3/0/0.1
 vlan-type dot1q 10
 l2 binding vsi bgp1 multi-homing-site site2
#
interface LoopBack1
 ip address 2.2.2.9 255.255.255.255
#
bgp 100         
 peer 1.1.1.9 as-number 100
 peer 1.1.1.9 connect-interface LoopBack1
 peer 3.3.3.9 as-number 100
 peer 3.3.3.9 connect-interface LoopBack1
 #              
 ipv4-family unicast
  undo synchronization
  peer 1.1.1.9 enable
  peer 3.3.3.9 enable
 #              
 l2vpn-ad-family
  policy vpn-target
  signaling vpls
  signaling multi-homing non-standard-compatible
  peer 1.1.1.9 enable
  peer 3.3.3.9 enable
#               
ospf 1          
 area 0.0.0.0   
  network 2.2.2.9 0.0.0.0
  network 192.168.10.0 0.0.0.255
  network 192.168.20.0 0.0.0.255
#               
return

PE3的配置文件

#
sysname PE3
#
mpls lsr-id 3.3.3.9
#
mpls
#
mpls l2vpn
#
vsi bgp1
 pwsignal bgp multi-homing
  route-distinguisher 192.168.20.2:1
  vpn-target 100:1 import-extcommunity
  vpn-target 100:1 export-extcommunity
  site-range 1000 default-offset 0
  site name best
   site-id 300  
   best-site    
  site default  
   site-id 30   
#               
mpls ldp        
#
interface GigabitEthernet1/0/0
 undo shutdown
 ip address 192.168.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet2/0/0
 undo shutdown
 ip address 192.168.20.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet3/0/0
 undo shutdown  
#
interface GigabitEthernet3/0/0.1
 vlan-type dot1q 10
 l2 binding vsi bgp1
#
interface LoopBack1
 ip address 3.3.3.9 255.255.255.255
#
bgp 100         
 peer 1.1.1.9 as-number 100
 peer 1.1.1.9 connect-interface LoopBack1
 peer 2.2.2.9 as-number 100
 peer 2.2.2.9 connect-interface LoopBack1
 #              
 ipv4-family unicast
  undo synchronization
  peer 1.1.1.9 enable
  peer 2.2.2.9 enable
 #              
 l2vpn-ad-family
  policy vpn-target
  signaling vpls
  signaling multi-homing non-standard-compatible
  peer 1.1.1.9 enable
  peer 2.2.2.9 enable
#               
ospf 1          
 area 0.0.0.0   
  network 3.3.3.9 0.0.0.0
  network 192.168.1.0 0.0.0.255
  network 192.168.20.0 0.0.0.255
#
return

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更新时间：2020-06-20

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