From: Ben_J_Durand@xxxxxxxxxx
Date: Sun Mar 12 2000 - 16:10:00 GMT-3
Hi guys,
I ran into an interesting problem. The bottom line question is: Can ospf
virtual links be chained? i.e traverse more than one transit area?
Here is the scenario:
A2 A3
/R1------R2------R3
/ |
A0 |
FR | A4
\ |
\R4
In this case, I've declared A2 as transit (virtual link) on R1 and R2 to give R
3
OSPF updates. Problem is, if R1 loses its connection to the frame cloud, it
loses its connection to area 0. This means that packets from Area 3 would have
to go through area 4 in order to get routed, which violates the rules of OSPF.
Can A4 between R1 and R4 be declared as a second virtual link, chained to the
one declared between R1 and R2? If so, how do the configs look? does an "area
4
virtual-link..." need to be added to R3?
This is obviously not the best design in the world, but if you had to work with
it, what would you do?
- Ben
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