[c-nsp] Rationale for ISIS default origination behavior

Gert Doering gert at greenie.muc.de
Tue Jan 22 11:50:57 EST 2013


Hi,

On Tue, Jan 22, 2013 at 05:19:08PM +0200, Saku Ytti wrote:
> Now all your routers see all edge boxes as default destinations and will
> choose which ever is closest, in terms IGP metric.
> If one edge connection to INET, your 8.8.8.8 will be pulled, and static
> route won't recurse to that edge anymore

I'm still not convinced that this is more elegant than "the to-upstream
edge routers just inject a static default route (pointing to the upstream
peer) into IGP".  What's the benefit of the extra recursion?

gert
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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