I have the following simple lab topology-
CE1-PE1-P2-PE3-CE2 while there is a backdoor link between CE1 and CE2.I have changed the bandwidth of this link to 1kbps so that it is least preferable.
The relevant configuration on PE1 router is-
interface Loopback 12
ip vrf forwarding CUST1
ip add 184.108.40.206 255.255.255.255
router bgp 100
address-family ipv4 vrf CUST1
network 220.127.116.11 mask 255.255.255.255
router ospf 1 vrf CUST1
area 0 sham-link 18.104.22.168 22.214.171.124 cost 2
The similar configuration on PE3 router too.
The "show ip ospf sham-link" output shows following-
PE1#sh ip ospf sham
Sham Link OSPF_SL0 to address 126.96.36.199 is up
Area 0 source address 188.8.131.52
Run as demand circuit
DoNotAge LSA allowed. Cost of using 2 State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40,
Hello due in 00:00:08
There is no adjacency formed. I also cannot ping 184.108.40.206 from PE1 router.
I am using 2691 with 12.4(25a) IOS.
Please share your thoughts.
> LDP was properly configured becoz the "show ip bgp vpnv4 all" command showed proper output including the prefixes 220.127.116.11/32 and 18.104.22.168/32 on both PE routers.
This command doesn't tell you anything about the LDP signaled LSP.
Can you do a "show ip cef vrf CUST1 22.214.171.124" from PE1. You should see a 2 labels for that prefix (1 IGP label and 1 service label) if the two PEs are not directly connected. Make sure that the LSP is not broken along the way as well.