OSPF Stub area question re: Default Routes
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Posted by jimbo on June 17, 2005, 8:36 pm
Please log in for more thread options default route will be advertised into the stub area by the Area Border Router. No ASBRs or external routes will be advertised. FINE. But what if there are two links connecting the stub area to area 0, meaning the stub area has two ABRs. Furthermore, suppose one of those ABRs has a shorter path to the ASBR (i.e. lower metric). QUESTION: When each ABR advertises a default route into the stub area, will the routers pick the default route with the lower metric? If not, how will the stub areas routers choose from among the two candidate default routes? Thanx! Jim | |||||||||||||
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Posted by John Agosta on June 18, 2005, 3:20 pm
Please log in for more thread options the lowest cost, from there, the ABR routes accordingly. | |||||||||||||
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Posted by jimbo on June 19, 2005, 8:07 pm
Please log in for more thread options Understood. Thanx
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> default route will be advertised into the stub area by the Area Border
> Router. No ASBRs or external routes will be advertised. FINE. But what
> if there are two links connecting the stub area to area 0, meaning the
> stub area has two ABRs. Furthermore, suppose one of those ABRs has a
> shorter path to the ASBR (i.e. lower metric).
>
> QUESTION: When each ABR advertises a default route into the stub area,
> will the routers pick the default route with the lower metric? If not,
> how will the stub areas routers choose from among the two candidate
> default routes?
>
> Thanx!
> Jim
>