Bgp-community-1

Bgp-community: Indirect influence route routing!

such as: 100 of the network left AS100, carry attributes away!

Configuration of the AR1:

BGP 100
Peer 2.2.2.2 As-number 200
Peer 2.2.2.2 Ebgp-max-hop 255
Peer 2.2.2.2 Connect-interface LoopBack0
Peer 3.3.3.3 As-number 200
Peer 3.3.3.3 Ebgp-max-hop 255
Peer 3.3.3.3 Connect-interface LoopBack0
Group AS200 Internal

Ipv4-family Unicast
Undo Synchronization
Network 100.1.1.0 255.255.255.0
Network 100.1.2.0 255.255.255.0
Peer 2.2.2.2 Enable
Peer 2.2.2.2 Route-policy Export
Peer 2.2.2.2 Advertise-community
Peer 3.3.3.3 Enable
Peer as200 Enable

Route-policy Permit Node 10
If-match ACL 2000
Apply Community 100:100

Group Properties for AR2

Bgp-community-1