AR28/AR46系列路由器HoPE典型配置

【需求】

 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     

peer 3.3.3.3 default-route-advertise vpn-instance vpna    

peer 3.3.3.3 default-route-advertise vpn-instance vpnb  

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。