Hi all, I have 3 MLX nodes connected in a ring configuration via 10gig links, call them R1, R2, R3. I also have MPLS up and running via BGP between the three.
All works well as long as all the phy links are up. But if I fail one of the 10gig links, i.e. the link between R2 and R3, the MPLS tunnel between them goes down and does not reroute around the other side of the ring, via R1. Is this normal? I am new to MPLS, but being a routed protocol, I was hoping it would see the route along R1 and re-establish the MPLS tunnel. Here are the MPLS configs of each router: R1 (10.27.250.1) router bgp local-as 1027 neighbor 10.27.250.2 remote-as 1027 neighbor 10.27.250.2 update-source loopback 1 neighbor 10.27.250.3 remote-as 1027 neighbor 10.27.250.3 update-source loopback 1 address-family ipv4 unicast redistribute connected redistribute static redistribute ospf match internal redistribute ospf match external2 exit-address-family address-family ipv4 multicast exit-address-family address-family ipv6 unicast exit-address-family address-family ipv6 multicast exit-address-family address-family vpnv4 unicast exit-address-family address-family l2vpn vpls neighbor 10.27.250.2 activate neighbor 10.27.250.2 send-community extended neighbor 10.27.250.3 activate neighbor 10.27.250.3 send-community extended exit-address-family end of BGP configuration router mpls mpls-interface ve8 ldp-enable mpls-interface ve9 ldp-enable mpls-interface ve10 ldp-enable vpls MGMT 3 auto-discovery vlan 3 tagged ethe 1/1 eth 1/4 eth 1/7 R2 (10.27.250.2): router bgp local-as 1027 neighbor 10.27.250.1 remote-as 1027 neighbor 10.27.250.1 update-source loopback 1 neighbor 10.27.250.3 remote-as 1027 neighbor 10.27.250.3 update-source loopback 1 address-family ipv4 unicast redistribute connected exit-address-family address-family ipv4 multicast exit-address-family address-family ipv6 unicast exit-address-family address-family ipv6 multicast exit-address-family address-family vpnv4 unicast exit-address-family address-family l2vpn vpls neighbor 10.27.250.1 activate neighbor 10.27.250.1 send-community extended neighbor 10.27.250.3 activate neighbor 10.27.250.3 send-community extended exit-address-family end of BGP configuration router mpls mpls-interface ve3 ldp-enable mpls-interface ve4 ldp-enable vpls MGMT 3 auto-discovery vlan 3 tagged ethe 4/3 to 4/5 ethe 4/7 ethe 4/13 ethe 4/19 R3 (10.27.250.3): router bgp local-as 1027 neighbor 10.27.250.1 remote-as 1027 neighbor 10.27.250.1 update-source loopback 1 neighbor 10.27.250.2 remote-as 1027 neighbor 10.27.250.2 update-source loopback 1 address-family ipv4 unicast redistribute connected exit-address-family address-family ipv4 multicast exit-address-family address-family ipv6 unicast exit-address-family address-family ipv6 multicast exit-address-family address-family vpnv4 unicast exit-address-family address-family l2vpn vpls neighbor 10.27.250.1 activate neighbor 10.27.250.1 send-community extended neighbor 10.27.250.2 activate neighbor 10.27.250.2 send-community extended exit-address-family end of BGP configuration router mpls mpls-interface ve2 ldp-enable mpls-interface ve3 ldp-enable vpls MGMT 3 auto-discovery vlan 3 tagged ethe 4/1 to 4/4 ethe 4/7 ethe 4/13 ethe 4/19 _______________________________________________ foundry-nsp mailing list [email protected] http://puck.nether.net/mailman/listinfo/foundry-nsp
