Hi from Barcelona
I need help resolving an issue with OSPF Admin distances. See attached file to see my simple topology.
The problem is in DATACENTER-2. In a normal situation (all links up), the DATACENTER-2 routing table shows a route to REMOTESITE via the backup tunnel even if the DATACENTER-1 is populating the sem route with less cost. It's that way because for DATACENTER-2, the path trough the backu tunnel is an INTRA-area router whereas the path through DATACENTER-1 is an INTER-area router and OSPF will always choose first the INTRA area routes. I posted this question yesterday and the answer I was to modify, in DATACENTER-2, the administrative distance of routes received from REMOTESITE.
I have done it with the order distance 140 172.16.248.1 0.0.0.0 and now it happens:
- if the backup tunnel is doen, the DATACENTER-2 installs the route to REMOTESITE via DATACENTER-1 with [110/30], and it's correct. When I restore the backup tunnel, the route remains on teh routing table
- but if the point-to-point link goes down, the DATACENTER-2 routing table shows a route to REMOTESITE with [140/160]; also correct. But when the ptp comes up again, the route via the backup tunnel remains in the rounting table event DATACENTER-1 knwons the same route but a bit better [110/20]
Any help will be very apreciated