bgp community

r4(config)#route-map com permit 10
r4(config-route-map)#match ip address
r4(config-route-map)#set community 123


r4(config-route-map)#exit
r4(config)#route-map com permit 20
r4(config-route-map)#exit
 
r4(config)#router bgp 4
r4(config-router)#neighbor 5.5.5.5 route-map com out
r4(config-router)#neighbor 5.5.5.5 send-community



r5(config)#ip community-list 5 permit 123
 
r5(config)#route-map wei permit 10
r5(config-route-map)#match community 5
r5(config-route-map)#set weight 123
r5(config-route-map)#exit
r5(config)#route-map wei permit 20
r5(config-route-map)#exit