Friday's Random Comment - About: Arista and FIB/RIB's

Nick Hilliard nick at foobar.org
Fri Apr 29 13:30:12 UTC 2016


Laszlo Hanyecz wrote:
> I'm curious about specific failure modes that can result from this, if
> anyone can share examples/experience with it.

The canonical pathological case is where the deaggregated prefixes are
affected by upstream topology changes and suddenly your optimisations
which saved you N% of forwarding lookup table capacity are wiped out to
zero and you end up with no ability to look up next-hops.

Nick



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