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8.2 HoPE典型配置

【组网图】

RT2为SPE，RT3为UPE设备，SPE只需要向UPE通告一条默认路由。

 

【组网图】

 

【配置脚本】

RT1配置脚本

#

 sysname RT1

#

 router id 1.1.1.1

#

 mpls lsr-id 1.1.1.1

#

radius scheme system

#

mpls

#

 mpls ldp

#

ip vpn-instance vpna

 route-distinguisher 100:1

 vpn-target 100:1 export-extcommunity

 vpn-target 100:1 import-extcommunity

#

ip vpn-instance vpnb

 route-distinguisher 200:1

 vpn-target 200:1 export-extcommunity

 vpn-target 200:1 import-extcommunity

#

domain system

#                                        

interface Serial2/0/0                    

 link-protocol ppp

 ip address 10.0.0.1 255.255.255.252

 mpls

 mpls ldp enable

#

interface NULL0

#

interface LoopBack0

 ip address 1.1.1.1 255.255.255.255

#

interface LoopBack11

 ip binding vpn-instance vpna

 ip address 192.168.11.1 255.255.255.0

#

interface LoopBack21

 ip binding vpn-instance vpnb

 ip address 192.168.21.1 255.255.255.0

#

bgp 100

 undo synchronization

 group inter internal

 peer 2.2.2.2 group inter

 peer 2.2.2.2 connect-interface LoopBack0

 #                                        

 ipv4-family vpn-instance vpna           

  import-route direct                    

  undo synchronization

 #

 ipv4-family vpn-instance vpnb

  import-route direct

  undo synchronization

 #

 ipv4-family vpnv4

  peer inter enable

  peer 2.2.2.2 group inter

#

ospf 1

 area 0.0.0.0

  network 1.1.1.1 0.0.0.0

  network 10.0.0.0 0.0.0.3

#

return

 

RT2配置脚本

#

sysname RT2

#

router id 2.2.2.2

#

mpls lsr-id 2.2.2.2

#

radius scheme system

#

mpls

#

mpls ldp

#

ip vpn-instance vpna

route-distinguisher 100:1

vpn-target 100:1 export-extcommunity

vpn-target 100:1 import-extcommunity

#

ip vpn-instance vpnb

route-distinguisher 200:1

vpn-target 200:1 export-extcommunity

#

domain system

#

interface Serial2/0/0

link-protocol ppp

ip address 10.0.0.2 255.255.255.252

mpls

mpls ldp enable

#

interface Serial2/0/1

link-protocol ppp

ip address 10.0.0.5 255.255.255.252

mpls

mpls ldp enable

#

interface NULL0

#

interface LoopBack0

ip address 2.2.2.2 255.255.255.255

#

interface LoopBack12

ip binding vpn-instance vpna

ip address 192.168.12.1 255.255.255.0

#

interface LoopBack22

ip binding vpn-instance vpnb

ip address 192.168.22.1 255.255.255.0

#

bgp 100

undo synchronization

group inter internal

peer 1.1.1.1 group inter

peer 1.1.1.1 connect-interface LoopBack0

peer 3.3.3.3 group inter

peer 3.3.3.3 connect-interface LoopBack0

#

ipv4-family vpn-instance vpna

import-route direct

undo synchronization

#

ipv4-family vpn-instance vpnb

import-route direct

undo synchronization

#

ipv4-family vpnv4

peer inter enable

peer 1.1.1.1 group inter

peer 3.3.3.3 group inter

peer 3.3.3.3 upe                          /配置3.3.3.3作为HoPE的UPE/

peer 3.3.3.3 default-route-advertise vpn-instance vpna

/对UPE的vpna通告默认路由/

peer 3.3.3.3 default-route-advertise vpn-instance vpnb

/对UPE的vpnb通告默认路由/

#

ospf 1

area 0.0.0.0

network 2.2.2.2 0.0.0.0

network 10.0.0.0 0.0.0.3

network 10.0.0.4 0.0.0.3

#

return

RT3配置脚本

#

 sysname RT3

#

 router id 3.3.3.3

#

 mpls lsr-id 3.3.3.3

#

radius scheme system

#

mpls

#

 mpls ldp

#

ip vpn-instance vpna

 route-distinguisher 100:1

 vpn-target 100:1 export-extcommunity

 vpn-target 100:1 import-extcommunity

#

ip vpn-instance vpnb

 route-distinguisher 200:1

 vpn-target 200:1 export-extcommunity

 vpn-target 200:1 import-extcommunity

#

domain system

#                                         

interface Serial2/0/0                    

 link-protocol ppp

 ip address 10.0.0.6 255.255.255.252

 mpls

 mpls ldp enable

#

interface NULL0

#

interface LoopBack0

 ip address 3.3.3.3 255.255.255.255

#

interface LoopBack13

 ip binding vpn-instance vpna

 ip address 192.168.13.1 255.255.255.0

#

interface LoopBack23

 ip binding vpn-instance vpnb

 ip address 192.168.23.1 255.255.255.0

#

bgp 100

 undo synchronization

 group inter internal

 peer 2.2.2.2 group inter

 peer 2.2.2.2 connect-interface LoopBack0

 #                                        

 ipv4-family vpn-instance vpna           

  import-route direct                    

  undo synchronization

 #

 ipv4-family vpn-instance vpnb

  import-route direct

  undo synchronization

 #

 ipv4-family vpnv4

  peer inter enable

  peer 2.2.2.2 group inter

#

ospf 1

 area 0.0.0.0

  network 3.3.3.3 0.0.0.0

  network 10.0.0.4 0.0.0.3

#

return

 

【验证】

RT3上vpna的私网路由表：

disp ip routing vpn vpna

  vpna   Route Information

 Routing Table:  vpna   Route-Distinguisher:   100:1

Destination/Mask   Protocol Pre  Cost        Nexthop         Interface

0.0.0.0/0          BGP      256  0           2.2.2.2         InLoopBack0

192.168.13.0/24    DIRECT   0    0           192.168.13.1    LoopBack13

192.168.13.1/32    DIRECT   0    0           127.0.0.1       InLoopBack0

 

只有一条由RT2通告的默认路由

 

【提示】

1、 HoPE和基本MPLS的配置基本上相同，只是在SPE上有所区别（红色部分）

  peer 3.3.3.3 upe                  /配置3.3.3.3作为HoPE的UPE/

  peer 3.3.3.3 default-route-advertise vpn-instance vpna     /对UPE的vpna通告默认路由/

  peer 3.3.3.3 default-route-advertise vpn-instance vpnb     /对UPE的vpnb通告默认路由/

 

2、 UPE上不需要特殊的配置，和普通的MPLS的配置完全一样。

 

3、SPE的路由表容量大，转发性能强，但接口资源较少；UPE的路由容量和转发性能较低，但接入能力强。

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