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S12700 V200R010C00 配置指南-VPN

本文档针对VPN特性，从配置过程和配置举例两方面对特性进行介绍。

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配置BGP/MPLS IP VPN示例

配置BGP/MPLS IP VPN示例

组网需求

如图2-51所示：
  • CE1连接公司总部研发区、CE3连接分支机构研发区，CE1和CE3属于vpna；
  • CE2连接公司总部非研发区、CE4连接分支机构非研发区，CE2和CE4属于vpnb。

公司要求通过部署BGP/MPLS IP VPN，实现总部和分支机构的安全互通，同时要求研发区和非研发区间数据隔离。

图2-51  BGP/MPLS IP VPN组网图

配置思路

采用如下的思路配置BGP/MPLS IP VPN：

  1. P、PE之间配置OSPF，实现骨干网的IP连通性。
  2. PE、P上配置MPLS基本能力和MPLS LDP，建立MPLS LSP公网隧道，传输VPN数据。
  3. PE1和PE2之间配置MP-IBGP，交换VPN路由信息。
  4. PE1和PE2上配置VPN实例，其中，vpna使用的VPN-target属性为111:1，vpnb使用的VPN-target属性为222:2，以实现相同VPN间互通，不同VPN间隔离。同时，与CE相连的接口和相应的VPN实例绑定，以接入VPN用户。
  5. CE与PE之间配置EBGP，交换VPN路由信息。

操作步骤

  1. 在MPLS骨干网上配置IGP协议，实现骨干网PE和P的互通

    # 配置PE1。

    <HUAWEI> system-view
[HUAWEI] sysname PE1
[PE1] interface loopback 1
[PE1-LoopBack1] ip address 1.1.1.9 32
[PE1-LoopBack1] quit
[PE1] vlan batch 10 20 30
[PE1] interface gigabitethernet 1/0/0
[PE1-GigabitEthernet1/0/0] port link-type trunk
[PE1-GigabitEthernet1/0/0] port trunk allow-pass vlan 10 
[PE1-GigabitEthernet1/0/0] quit
[PE1] interface gigabitethernet 2/0/0
[PE1-GigabitEthernet2/0/0] port link-type trunk
[PE1-GigabitEthernet2/0/0] port trunk allow-pass vlan 20 
[PE1-GigabitEthernet2/0/0] quit
[PE1] interface gigabitethernet 3/0/0
[PE1-GigabitEthernet3/0/0] port link-type trunk
[PE1-GigabitEthernet3/0/0] port trunk allow-pass vlan 30 
[PE1-GigabitEthernet3/0/0] quit
[PE1] interface vlanif 30
[PE1-Vlanif30] ip address 172.1.1.1 24
[PE1-Vlanif30] quit
[PE1] ospf 1
[PE1-ospf-1] area 0
[PE1-ospf-1-area-0.0.0.0] network 172.1.1.0 0.0.0.255
[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] quit
[PE1-ospf-1] quit

    # 配置P。

    <HUAWEI> system-view
[HUAWEI] sysname P
[P] interface loopback 1
[P-LoopBack1] ip address 2.2.2.9 32
[P-LoopBack1] quit
[P] vlan batch 30 60
[P] interface gigabitethernet 1/0/0 
[P-GigabitEthernet1/0/0] port link-type trunk
[P-GigabitEthernet1/0/0] port trunk allow-pass vlan 30
[P-GigabitEthernet1/0/0] quit
[P] interface gigabitethernet 2/0/0 
[P-GigabitEthernet2/0/0] port link-type trunk
[P-GigabitEthernet2/0/0] port trunk allow-pass vlan 60
[P-GigabitEthernet2/0/0] quit
[P] interface vlanif 30
[P-Vlanif30] ip address 172.1.1.2 24
[P-Vlanif30] quit
[P] interface vlanif 60
[P-Vlanif60] ip address 172.2.1.1 24
[P-Vlanif60] quit
[P] ospf 1
[P-ospf-1] area 0
[P-ospf-1-area-0.0.0.0] network 172.1.1.0 0.0.0.255
[P-ospf-1-area-0.0.0.0] network 172.2.1.0 0.0.0.255
[P-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0
[P-ospf-1-area-0.0.0.0] quit
[P-ospf-1] quit

    # 配置PE2。

    <HUAWEI> system-view
[HUAWEI] sysname PE2
[PE2] interface loopback 1
[PE2-LoopBack1] ip address 3.3.3.9 32
[PE2-LoopBack1] quit
[PE2] vlan batch 40 50 60
[PE2] interface gigabitethernet 1/0/0
[PE2-GigabitEthernet1/0/0] port link-type trunk
[PE2-GigabitEthernet1/0/0] port trunk allow-pass vlan 40
[PE2-GigabitEthernet1/0/0] quit
[PE2] interface gigabitethernet 2/0/0 
[PE2-GigabitEthernet2/0/0] port link-type trunk
[PE2-GigabitEthernet2/0/0] port trunk allow-pass vlan 50
[PE2-GigabitEthernet2/0/0] quit
[PE2] interface gigabitethernet 3/0/0 
[PE2-GigabitEthernet3/0/0] port link-type trunk
[PE2-GigabitEthernet3/0/0] port trunk allow-pass vlan 60
[PE2-GigabitEthernet3/0/0] quit
[PE2] interface vlanif 60
[PE2-Vlanif60] ip address 172.2.1.2 24
[PE2-Vlanif60] quit
[PE2] ospf 1
[PE2-ospf-1] area 0
[PE2-ospf-1-area-0.0.0.0] network 172.2.1.0 0.0.0.255
[PE2-ospf-1-area-0.0.0.0] network 3.3.3.9 0.0.0.0
[PE2-ospf-1-area-0.0.0.0] quit
[PE2-ospf-1] quit

    配置完成后，PE1、P、PE2之间应能建立OSPF邻居关系，执行display ospf peer命令可以看到邻居状态为Full。执行display ip routing-table命令可以看到PE之间学习到对方的Loopback1路由。

    以PE1的显示为例：

    [PE1] display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 8       Routes : 8

  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  172.1.1.2       Vlanif30
         3.3.3.9/32   OSPF   10   2           D  172.1.1.2       Vlanif30
        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
       172.1.1.0/24   Direct 0    0           D  172.1.1.1       Vlanif30
       172.1.1.1/32   Direct 0    0           D  127.0.0.1       Vlanif30
       172.2.1.0/24   OSPF   10   2           D  172.1.1.2       Vlanif30

    [PE1] display ospf peer

          OSPF Process 1 with Router ID 1.1.1.9
                  Neighbors

 Area 0.0.0.0 interface 172.1.1.1(Vlanif30)'s neighbors
 Router ID: 2.2.2.9         Address: 172.1.1.2
   State: Full  Mode:Nbr is  Slave   Priority: 1
   DR: 172.1.1.1  BDR: 172.1.1.2  MTU: 0 
   Dead timer due in 37  sec
   Retrans timer interval: 5 
   Neighbor is up for 00:16:21
   Authentication Sequence: [ 0 ]

  2. 在MPLS骨干网上配置MPLS基本能力和MPLS LDP，建立LDP LSP

    # 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 vlanif 30
[PE1-Vlanif30] mpls
[PE1-Vlanif30] mpls ldp
[PE1-Vlanif30] quit

    # 配置P。

    [P] mpls lsr-id 2.2.2.9
[P] mpls
[P-mpls] quit
[P] mpls ldp
[P-mpls-ldp] quit
[P] interface vlanif 30
[P-Vlanif30] mpls
[P-Vlanif30] mpls ldp
[P-Vlanif30] quit
[P] interface vlanif 60
[P-Vlanif60] mpls
[P-Vlanif60] mpls ldp
[P-Vlanif60] quit

    # 配置PE2。

    [PE2] mpls lsr-id 3.3.3.9
[PE2] mpls
[PE2-mpls] quit
[PE2] mpls ldp
[PE2-mpls-ldp] quit
[PE2] interface vlanif 60
[PE2-Vlanif60] mpls
[PE2-Vlanif60] mpls ldp
[PE2-Vlanif60] quit

    上述配置完成后，PE1与P、P与PE2之间应能建立LDP会话，执行display mpls ldp session命令可以看到显示结果中Status项为“Operational”。执行display mpls ldp lsp命令，可以看到LDP LSP的建立情况。

    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)
 A '*' 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
 ------------------------------------------------------------------------------
 TOTAL: 1 session(s) Found.


    [PE1] display mpls ldp lsp

LDP LSP Information
 -------------------------------------------------------------------------------
 Flag after Out IF: (I) - LSP Is Only Iterated by RLFA
 -------------------------------------------------------------------------------
 DestAddress/Mask   In/OutLabel   UpstreamPeer     NextHop     OutInterface   
 -------------------------------------------------------------------------------
 1.1.1.9/32         3/NULL        2.2.2.9          127.0.0.1   InLoop0    
*1.1.1.9/32         Liberal/1024                   DS/2.2.2.9
 2.2.2.9/32         NULL/3        -                172.1.1.2   Vlanif30       
 2.2.2.9/32         1024/3        2.2.2.9          172.1.1.2   Vlanif30       
 3.3.3.9/32         NULL/1025     -                172.1.1.2   Vlanif30       
 3.3.3.9/32         1025/1025     2.2.2.9          172.1.1.2   Vlanif30      
 -------------------------------------------------------------------------------
 TOTAL: 5 Normal LSP(s) Found.
 TOTAL: 1 Liberal LSP(s) Found.
 TOTAL: 0 Frr LSP(s) Found.
 A '*' before an LSP means the LSP is not established 
 A '*' before a Label means the USCB or DSCB is stale 
 A '*' before a UpstreamPeer means the session is stale 
 A '*' before a DS means the session is stale 
 A '*' before a NextHop means the LSP is FRR LSP

  3. 在PE设备上配置VPN实例，将CE接入PE

    # 配置PE1。

    [PE1] ip vpn-instance vpna
[PE1-vpn-instance-vpna] route-distinguisher 100:1
[PE1-vpn-instance-vpna-af-ipv4] vpn-target 111:1 both
[PE1-vpn-instance-vpna-af-ipv4] quit
[PE1-vpn-instance-vpna] quit
[PE1] ip vpn-instance vpnb
[PE1-vpn-instance-vpnb] route-distinguisher 100:2
[PE1-vpn-instance-vpnb-af-ipv4] vpn-target 222:2 both
[PE1-vpn-instance-vpnb-af-ipv4] quit
[PE1-vpn-instance-vpnb] quit
[PE1] interface vlanif 10
[PE1-Vlanif10] ip binding vpn-instance vpna
[PE1-Vlanif10] ip address 10.1.1.2 24
[PE1-Vlanif10] quit
[PE1] interface vlanif 20
[PE1-Vlanif20] ip binding vpn-instance vpnb
[PE1-Vlanif20] ip address 10.2.1.2 24
[PE1-Vlanif20] quit

    # 配置PE2。

    [PE2] ip vpn-instance vpna
[PE2-vpn-instance-vpna] route-distinguisher 200:1
[PE2-vpn-instance-vpna-af-ipv4] vpn-target 111:1 both
[PE2-vpn-instance-vpna-af-ipv4] quit
[PE2-vpn-instance-vpna] quit
[PE2] ip vpn-instance vpnb
[PE2-vpn-instance-vpnb] route-distinguisher 200:2
[PE2-vpn-instance-vpnb-af-ipv4] vpn-target 222:2 both
[PE2-vpn-instance-vpnb-af-ipv4] quit
[PE2-vpn-instance-vpnb] quit
[PE2] interface vlanif 40
[PE2-Vlanif40] ip binding vpn-instance vpna
[PE2-Vlanif40] ip address 10.3.1.2 24
[PE2-Vlanif40] quit
[PE2] interface vlanif 50
[PE2-Vlanif50] ip binding vpn-instance vpnb
[PE2-Vlanif50] ip address 10.4.1.2 24
[PE2-Vlanif50] quit

    # 按图2-51配置CE1的接口IP地址，CE2、CE3和CE4的配置与CE1类似，配置过程略。

    <HUAWEI> system-view
[HUAWEI] sysname CE1
[CE1] vlan batch 10
[CE1] interface gigabitethernet 1/0/0
[CE1-GigabitEthernet1/0/0] port link-type trunk
[CE1-GigabitEthernet1/0/0] port trunk allow-pass vlan 10 
[CE1-GigabitEthernet1/0/0] quit
[CE1] interface vlanif 10
[CE1-Vlanif10] ip address 10.1.1.1 24
[CE1-Vlanif10] quit

    配置完成后，在PE设备上执行display ip vpn-instance verbose命令可以看到VPN实例的配置情况。各PE能ping通自己接入的CE。

    当PE上有多个接口绑定了同一个VPN，则使用ping -vpn-instance命令ping对端PE接入的CE时，要指定源IP地址，即要指定ping -vpn-instance vpn-instance-name -a source-ip-address dest-ip-address命令中的参数-a source-ip-address，否则可能ping不通。

    以PE1为例：

    [PE1] display ip vpn-instance verbose
 Total VPN-Instances configured : 2
 Total IPv4 VPN-Instances configured : 2
 Total IPv6 VPN-Instances configured : 0

 VPN-Instance Name and ID : vpna, 1
  Interfaces : Vlanif10
 Address family ipv4
  Create date : 2014-11-03 02:39:34+00:00
  Up time : 0 days, 22 hours, 24 minutes and 53 seconds
  Route Distinguisher : 100:1
  Export VPN Targets :  111:1
  Import VPN Targets :  111:1
  Label Policy : label per instance
  Per-Instance Label : 4098
  Log Interval : 5

 VPN-Instance Name and ID : vpnb, 2
  Interfaces : Vlanif20
 Address family ipv4
  Create date : 2014-11-03 02:39:34+00:00
  Up time : 0 days, 22 hours, 24 minutes and 53 seconds
  Route Distinguisher : 100:2
  Export VPN Targets :  222:2
  Import VPN Targets :  222:2
  Label Policy : label per instance
  Per-Instance Label : 4098
  Log Interval : 5
  

    [PE1] ping -vpn-instance vpna 10.1.1.1
  PING 10.1.1.1: 56  data bytes, press CTRL_C to break
    Reply from 10.1.1.1: bytes=56 Sequence=1 ttl=255 time=5 ms
    Reply from 10.1.1.1: bytes=56 Sequence=2 ttl=255 time=3 ms
    Reply from 10.1.1.1: bytes=56 Sequence=3 ttl=255 time=3 ms
    Reply from 10.1.1.1: bytes=56 Sequence=4 ttl=255 time=3 ms
    Reply from 10.1.1.1: bytes=56 Sequence=5 ttl=255 time=16 ms

  --- 10.1.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 3/6/16 ms

  4. 在PE与CE之间建立EBGP对等体关系，引入VPN路由

    # 配置CE1。CE2、CE3和CE4的配置与CE1类似，详见配置文件。

    [CE1] bgp 65410
[CE1-bgp] peer 10.1.1.2 as-number 100
[CE1-bgp] import-route direct
[CE1-bgp] quit

    # 配置PE1。PE2的配置与PE1类似，详见配置文件。

    [PE1] bgp 100
[PE1-bgp] ipv4-family vpn-instance vpna
[PE1-bgp-vpna] peer 10.1.1.1 as-number 65410
[PE1-bgp-vpna] import-route direct
[PE1-bgp-vpna] quit
[PE1-bgp] ipv4-family vpn-instance vpnb
[PE1-bgp-vpnb] peer 10.2.1.1 as-number 65420
[PE1-bgp-vpnb] import-route direct
[PE1-bgp-vpnb] quit
[PE1-bgp] quit

    配置完成后，在PE设备上执行display bgp vpnv4 vpn-instance peer命令，可以看到PE与CE之间的BGP对等体关系已建立，并达到Established状态。

    以PE1与CE1的对等体关系为例：

    [PE1] display bgp vpnv4 vpn-instance vpna peer

 BGP local router ID : 1.1.1.9
 Local AS number : 100
 VPN-Instance vpna, Router ID 1.1.1.9:
 Total number of peers : 1                 Peers in established state : 1

  Peer            V    AS  MsgRcvd  MsgSent  OutQ  Up/Down       State      PrefRcv

  10.1.1.1        4 65410       11        9     0 00:07:25      Established       1

  5. 在PE之间建立MP-IBGP对等体关系

    # 配置PE1。

    [PE1] bgp 100
[PE1-bgp] peer 3.3.3.9 as-number 100
[PE1-bgp] peer 3.3.3.9 connect-interface loopback 1
[PE1-bgp] ipv4-family vpnv4
[PE1-bgp-af-vpnv4] peer 3.3.3.9 enable
[PE1-bgp-af-vpnv4] quit
[PE1-bgp] quit

    # 配置PE2。

    [PE2] bgp 100
[PE2-bgp] peer 1.1.1.9 as-number 100
[PE2-bgp] peer 1.1.1.9 connect-interface loopback 1
[PE2-bgp] ipv4-family vpnv4
[PE2-bgp-af-vpnv4] peer 1.1.1.9 enable
[PE2-bgp-af-vpnv4] quit
[PE2-bgp] quit

    配置完成后，在PE设备上执行display bgp peer或display bgp vpnv4 all peer命令，可以看到PE之间的BGP对等体关系已建立，并达到Established状态。

    [PE1] display bgp peer

 BGP local router ID : 1.1.1.9
 Local AS number : 100
 Total number of peers : 1                 Peers in established state : 1

  Peer            V    AS  MsgRcvd  MsgSent  OutQ  Up/Down       State              PrefRcv

  3.3.3.9         4   100       12        6     0 00:02:21        Established       0
    [PE1] display bgp vpnv4 all peer

BGP local router ID : 1.1.1.9
 Local AS number : 100
 Total number of peers : 3                 Peers in established state : 3

  Peer            V    AS  MsgRcvd  MsgSent    OutQ  Up/Down    State        PrefRcv

  3.3.3.9         4   100   12      18         0     00:09:38   Established   0
  Peer of IPv4-family for vpn instance :

 VPN-Instance vpna, Router ID 1.1.1.9: 
  10.1.1.1        4   65410  25     25         0     00:17:57   Established   1
 VPN-Instance vpnb, Router ID 1.1.1.9: 
  10.2.1.1        4   65420  21     22         0     00:17:10   Established   1

  6. 检查配置结果

    在PE设备上执行display ip routing-table vpn-instance命令，可以看到去往对端CE的路由。

    以PE1的显示为例：

    [PE1] display ip routing-table vpn-instance vpna
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: vpna
         Destinations : 3        Routes : 3

Destination/Mask    Proto  Pre  Cost     Flags NextHop         Interface

     10.1.1.0/24    Direct 0    0        D     10.1.1.2        Vlanif10
     10.1.1.2/32    Direct 0    0        D     127.0.0.1       Vlanif10
    10.3.1.0/24     IBGP   255  0        RD    3.3.3.9         Vlanif30

    [PE1] display ip routing-table vpn-instance vpnb
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: vpnb
         Destinations : 3        Routes : 3

Destination/Mask    Proto  Pre  Cost     Flags NextHop         Interface

     10.2.1.0/24    Direct 0    0        D     10.2.1.2        Vlanif20
     10.2.1.2/32    Direct 0    0        D     127.0.0.1       Vlanif20
    10.4.1.0/24    IBGP    255  0        RD    3.3.3.9         Vlanif30

    同一VPN的CE能够相互Ping通，不同VPN的CE不能相互Ping通。

    例如：CE1能够Ping通CE3（10.3.1.1），但不能Ping通CE4（10.4.1.1）。

    [CE1] ping 10.3.1.1
  PING 10.3.1.1: 56  data bytes, press CTRL_C to break
    Reply from 10.3.1.1: bytes=56 Sequence=1 ttl=253 time=72 ms
    Reply from 10.3.1.1: bytes=56 Sequence=2 ttl=253 time=34 ms
    Reply from 10.3.1.1: bytes=56 Sequence=3 ttl=253 time=50 ms
    Reply from 10.3.1.1: bytes=56 Sequence=4 ttl=253 time=50 ms
    Reply from 10.3.1.1: bytes=56 Sequence=5 ttl=253 time=34 ms
  --- 10.3.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 34/48/72 ms

配置文件

  • PE1的配置文件

    #
sysname PE1
#
vlan batch 10 20 30
#
ip vpn-instance vpna
 ipv4-family
  route-distinguisher 100:1
  vpn-target 111:1 export-extcommunity
  vpn-target 111:1 import-extcommunity
#
ip vpn-instance vpnb
 ipv4-family
  route-distinguisher 100:2
  vpn-target 222:2 export-extcommunity
  vpn-target 222:2 import-extcommunity
#
mpls lsr-id 1.1.1.9
mpls
#
mpls ldp
#
interface Vlanif10
 ip binding vpn-instance vpna
 ip address 10.1.1.2 255.255.255.0
# 
interface Vlanif20
 ip binding vpn-instance vpnb
 ip address 10.2.1.2 255.255.255.0
#
interface Vlanif30
 ip address 172.1.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet1/0/0
 port link-type trunk
 port trunk allow-pass vlan 10
# 
interface GigabitEthernet2/0/0
 port link-type trunk
 port trunk allow-pass vlan 20
#
interface GigabitEthernet3/0/0
 port link-type trunk
 port trunk allow-pass vlan 30
#
interface LoopBack1
 ip address 1.1.1.9 255.255.255.255
# 
bgp 100
 peer 3.3.3.9 as-number 100
 peer 3.3.3.9 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 3.3.3.9 enable
 #
 ipv4-family vpnv4
  policy vpn-target
  peer 3.3.3.9 enable
 #
 ipv4-family vpn-instance vpna
  import-route direct
  peer 10.1.1.1 as-number 65410
 #
 ipv4-family vpn-instance vpnb
  import-route direct
  peer 10.2.1.1 as-number 65420
#
ospf 1
 area 0.0.0.0
  network 1.1.1.9 0.0.0.0
  network 172.1.1.0 0.0.0.255
#
return

  • P的配置文件

    #
sysname P
#
vlan batch 30 60
#
mpls lsr-id 2.2.2.9
mpls
#
mpls ldp
# 
interface Vlanif30
 ip address 172.1.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface Vlanif60
 ip address 172.2.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet1/0/0
 port link-type trunk
 port trunk allow-pass vlan 30
# 
interface GigabitEthernet2/0/0
 port link-type trunk
 port trunk allow-pass vlan 60
# 
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 172.1.1.0 0.0.0.255
  network 172.2.1.0 0.0.0.255
#
return

  • PE2的配置文件

    #
sysname PE2
#
vlan batch 40 50 60
#
ip vpn-instance vpna
 ipv4-family
  route-distinguisher 200:1
  vpn-target 111:1 export-extcommunity
  vpn-target 111:1 import-extcommunity
#
ip vpn-instance vpnb
 ipv4-family
  route-distinguisher 200:2
  vpn-target 222:2 export-extcommunity
  vpn-target 222:2 import-extcommunity
#
mpls lsr-id 3.3.3.9
mpls
#
mpls ldp
#
interface Vlanif40
 ip binding vpn-instance vpna
 ip address 10.3.1.2 255.255.255.0
#
interface Vlanif50
 ip binding vpn-instance vpnb
 ip address 10.4.1.2 255.255.255.0
#
interface Vlanif60
 ip address 172.2.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet1/0/0
 port link-type trunk
 port trunk allow-pass vlan 40
# 
interface GigabitEthernet2/0/0
 port link-type trunk
 port trunk allow-pass vlan 50
# 
interface GigabitEthernet3/0/0
 port link-type trunk
 port trunk allow-pass vlan 60
# 
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
 #
 ipv4-family unicast
  undo synchronization
  peer 1.1.1.9 enable
 #
 ipv4-family vpnv4
  policy vpn-target
  peer 1.1.1.9 enable 
 #
 ipv4-family vpn-instance vpna
  import-route direct
  peer 10.3.1.1 as-number 65430
 #
 ipv4-family vpn-instance vpnb
  import-route direct
  peer 10.4.1.1 as-number 65440
#
ospf 1
 area 0.0.0.0
  network 3.3.3.9 0.0.0.0
  network 172.2.1.0 0.0.0.255
# 
return

  • CE1的配置文件

    #
sysname CE1
#
vlan batch 10
#
interface Vlanif10
 ip address 10.1.1.1 255.255.255.0
#
interface GigabitEthernet1/0/0
 port link-type trunk
 port trunk allow-pass vlan 10
#
bgp 65410
 peer 10.1.1.2 as-number 100
 #
 ipv4-family unicast
  undo synchronization
  import-route direct
  peer 10.1.1.2 enable
#
return

  • CE2的配置文件

    #
sysname CE2
#
vlan batch 20
#
interface Vlanif20
 ip address 10.2.1.1 255.255.255.0
#
interface GigabitEthernet1/0/0
 port link-type trunk
 port trunk allow-pass vlan 20
#
bgp 65420
 peer 10.2.1.2 as-number 100
 #
 ipv4-family unicast
  undo synchronization
  import-route direct
  peer 10.2.1.2 enable
#
return

  • CE3的配置文件

    #
sysname CE3
#
vlan batch 40
#
interface Vlanif40
 ip address 10.3.1.1 255.255.255.0
#
interface GigabitEthernet1/0/0
 port link-type trunk
 port trunk allow-pass vlan 40
#
bgp 65430
 peer 10.3.1.2 as-number 100
 #
 ipv4-family unicast
  undo synchronization
  import-route direct
  peer 10.3.1.2 enable
#
return

  • CE4的配置文件

    #
sysname CE4
#
vlan batch 50
#
interface Vlanif50
 ip address 10.4.1.1 255.255.255.0
#
interface GigabitEthernet1/0/0
 port link-type trunk
 port trunk allow-pass vlan 50
#
bgp 65440
 peer 10.4.1.2 as-number 100
 #
 ipv4-family unicast
  undo synchronization
  import-route direct
  peer 10.4.1.2 enable
#
return
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