I have a Design that I need to implement, one of our customers is injecting the same route from 3 different gateways and need every site to exist from the nearest gateways ( I cant rely on the IGP). so I have to mark this route from the Different Gateways by different communities in the BGP. What I need exactly is how I can prefer this route from the branches site, I tried to match Community on the Branches PE and increases its Local preferences but it does not work
Below is the LAB Trials" 18.104.22.168 Network is the Network Injected from the 3 Gateways and Each gateway will mark it by different community"
! ip vrf Customer_A rd 100:100 route-target export 100:2000 route-target import 100:2000 ! ! ! ! interface FastEthernet0/0 ip vrf forwarding Customer_A ip address 172.16.0.1 255.255.255.252 duplex full ! interface FastEthernet1/0 ip address 10.0.10.1 255.255.255.252 duplex full speed auto mpls ip ! router ospf 10 log-adjacency-changes network 10.0.0.0 0.0.255.255 area 0 network 22.214.171.124 0.255.255.255 area 0 ! router bgp 64500 no bgp default ipv4-unicast bgp log-neighbor-changes neighbor PE-S update-source Loopback1111 neighbor 126.96.36.199 remote-as 64500 neighbor 188.8.131.52 update-source Loopback1111 neighbor 184.108.40.206 remote-as 64500 neighbor 220.127.116.11 update-source Loopback1111 neighbor 172.16.0.2 remote-as 64510 ! address-family vpnv4 neighbor PE-S send-community extended neighbor 18.104.22.168 activate neighbor 22.214.171.124 send-community extended neighbor 126.96.36.199 activate neighbor 188.8.131.52 send-community extended exit-address-family ! address-family ipv4 vrf Customer_A neighbor 172.16.0.2 remote-as 64510 neighbor 172.16.0.2 activate network 184.108.40.206 route-map MS-Gateway no synchronization exit-address-family ! ip route vrf Customer_A 220.127.116.11 255.255.255.255 172.16.0.2 ! ! ip bgp-community new-format ip community-list 1 permit 100:300 ! ! route-map MS-Gateway permit 10 match community 1 set local-preference 150 ! route-map MS-Gateway permit 20 ! ! mpls ldp router-id Loopback1111 force ! ! control-plane ! ! ! ! !
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