Typical Configuration Of BGP Route Reflector on AR28、AR46 Series Routers

Typical Configuration Of BGP Route Reflector on AR28、AR46 Series Routers

[Requirements]

Routers A,B and C are located in AS 100. Router B is the route reflector (RR).

[Networking diagram]

[Configuration script]

Configuration script on Router A

# sysname RouterA # router id 1.1.1.1      /Configure the router ID to be the same as loopback 0/ # radius scheme system # domain system # interface Ethernet0/0 ip address 10.1.1.1 255.255.255.0 # interface Serial0/0 link-protocol ppp ip address 20.1.1.1 255.255.255.252 # interface NULL0 # interface LoopBack0 ip address 1.1.1.1 255.255.255.255 # bgp 100                             /Configure the BGP in AS 100/ undo synchronization                /Configure asynchronization/ group in internal                   /Configure group in/ peer in connect-interface LoopBack0 peer 1.1.1.2 group in               /Specify an IBGP peer/ # ospf 1 area 0.0.0.0 network 1.1.1.1 0.0.0.0 network 20.1.1.0 0.0.0.3 # user-interface con 0 user-interface vty 0 4 # return

Configuration script on Router B

# sysname RouterB # router id 1.1.1.2             /Configure the router ID to be the same as loopback 0/ # radius scheme system # domain system # interface Seria0/0 link-protocol ppp ip address 20.1.1.2 255.255.255.252 # interface Serial0/1 link-protocol ppp ip address 30.1.1.1 255.255.255.252 # interface NULL0 # interface LoopBack0 ip address 1.1.1.2 255.255.255.255 # bgp 100                                /Configure the BGP in AS 100/ undo synchronization                   /Configure asynchronization/ group in internal                      /Configure group in/ peer in reflect-client                 /Set the peer group to the client of route reflector/ peer in connect-interface LoopBack0 peer 1.1.1.1 group in                  /Specify an IBGP peer/ peer 1.1.1.3 group in                  /Specify an IBGP peer/ # ospf 1 area 0.0.0.0 network 1.1.1.2 0.0.0.0 network 20.1.1.0 0.0.0.3 network 30.1.1.0 0.0.0.3 # user-interface con 0 user-interface vty 0 4 # return

Configuration script on Router C

# sysname RouterC # router id 1.1.1.3      /Configure the router ID to be the same as loopback 0/ # radius scheme system # domain system # interface Ethernet0/0 ip address 40.1.1.1 255.255.255.0 # interface Serial0/0 link-protocol ppp ip address 30.1.1.2 255.255.255.252 # interface NULL0 # interface LoopBack0 ip address 1.1.1.3 255.255.255.255 # # bgp 100                             /Configure the BGP in AS 100/ undo synchronization                /Configure asynchronization/ group in internal                   /Configure group in/ peer in connect-interface LoopBack0 peer 1.1.1.2 group in               /Specify an IBGP peer/ # ospf 1 area 0.0.0.0 network 1.1.1.3 0.0.0.0 network 30.1.1.0 0.0.0.3 # user-interface con 0 user-interface vty 0 4 # return

 

[Verification]

Establish IBGP peer relationships between Routers B and A and between Routers B and C. No IBGP peer relationship is established between Router A and Router C.

[RouterB]disp bgp peer

Peer        AS-num Ver Queued-Tx    Msg-Rx    Msg-Tx    Up/Down  State

---------------------------------------------------------------------------

1.1.1.1      100    4      0         23         25       00:22:10 Established

1.1.1.3      100    4      0          7          8       00:05:36 Established

 

 [Tip]

The configuration of route reflector differs only on the reflector, but not the client.