Re: "Tactical" /24 announcements

[Nick Hilliard <nick () foobar org>]

Jon Lewis wrote on 12/08/2021 18:09:
> Arista.  They call it FIB compression.  They mention it's a trade-off, 
> more memory and CPU utilization (keeping track of things) in exchange 
> for being able to keep hardware that might otherwise be out of FIB space 
> able to cope with full tables.

it also causes non-deterministic fib resource consumption. On most edge 
deployments this won't matter, but it wouldn't be hard to cook up a 
topology that could fail in interesting ways.  Overall fib compression 
is a net win, but you need to be careful with it.

Nick