Does anyone have a non-paywalled version of that FIB Compression page?
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com ----- Original Message ----- From: "Yang Yu" <yang.yu.l...@gmail.com> To: "William Herrin" <b...@herrin.us> Cc: "Tore Anderson" <t...@fud.no>, nanog@nanog.org Sent: Friday, June 5, 2020 8:07:52 PM Subject: Re: Partial vs Full tables On Fri, Jun 5, 2020 at 10:39 AM William Herrin <b...@herrin.us> wrote: > Speak of which, did anyone ever implement FIB compression? I seem to > remember the calculations looked really favorable for the leaf node > use case (like James') where the router sits at the edge with a small > number of more or less equivalent upstream transits. The FIB is the > expensive memory. The RIB sits in the cheap part of the hardware. fib optimize => using LPM table for LEM https://www.arista.com/en/um-eos/eos-section-28-11-ipv4-commands#ww1173031 FIB compression => install only 1 entry into FIB for compressable routes with shared nexthop https://eos.arista.com/eos-4-21-3f/fib-compression/ The feature itself works as intended. version/platform/config compatibility needs some considerations.
