[c-nsp] OSPF NSSA Question
tbaranski at mail.com
Sun Oct 3 20:31:44 EDT 2004
> > Yeah, I guess that's why I am confused.... why do the routers
> > in the stub/nssa area need any information other than a default
> > route?
> They don't but I don't think you can stop them from learning all
> the routes from their area.
Right -- this is a fundamental property of link-state protocols. The
link-state database must be consistent area-wide.
> If you want to be able to pick and choose what they announce
> and what they receive, use BGP and your choice of
> prefix-lists/route-maps/distribute-lists, etc.
Agreed. BGP is well suited for route filtering; IGPs aren't.
More information about the cisco-nsp