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NSSA totally stub and default route

Hi all

I have a doubt about the NSSA behaviour.....

I have an ABR configured in area 0 with one interface, and in area 10 ( nssa no-summary ) on some other interfaces.From area 0 the ABR receive some networks

The area 10 links are tunnels GRE.

On the remote sites, as expected, I see correctly the default route 0.0.0.0 and The intra-area routes from other area10 sites

The question is :

On the ABR, what should happen if the link to area 0 goes down?

I note that on remote sites the default route is still present, but this behaviour is it really correct?

Thanks for any suggestion

Stefano

  • Other Network Infrastructure Subjects
1 REPLY
Bronze

Re: NSSA totally stub and default route

I think this is correct behavior. The ABR still considers itself as part of area 0 when the link to the backbone goes down, it just has no neighbors in the area.

Mark

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