Create a virtual link between router B and router D.
Figure 17 in section 16.3 of RFC 2328 also talks about
this solution in a similar scenario.
Faraz
>
> Given a network such as:
>
> -----------------------------------
> | routerA------T3------routerC |
> |___ | _________________ | __| area 0
> | | | | | |
> | T1s | | T3 |
> | | / | | |
> \ | / /-------------\ \ | /
> routerB-----100bt------routerD
> \-------------/
> area 1
>
> how do I get around the T1's connecting A and B being the shortest path
> and get B to send traffic to A via D unless one of the T3's above is down?
> I can't just use static routes on B, because it won't know if a T3 is
> down. I've tried playing with "ip ospf cost" on the T1's but B still
> prefers them.
>
> --
> ----------------------------------------------------------------------
> Jon Lewis *jlewis@lewis.org*| I route
> System Administrator | therefore you are
> Atlantic Net |
> _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
>
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