On 20/Jun/20 22:00, Baldur Norddahl wrote:
> > I can't speak for the year 2000 as I was not doing networking at this > level at that time. But when I check the specs for the base mx204 it > says something like 32 VRFs, 2 million routes in FIB and 6 million > routes in RIB. Clearly those numbers are the total of routes across > all VRFs otherwise you arrive at silly numbers (64 million FIB if you > multiply, 128k FIB if you divide by 32). My conclusion is that scale > wise you are ok as long you do not try to have more than one VRF with > a complete copy of the DFZ. I recall a number of networks holding multiple VRF's, including at least 2x Internet VRF's, for numerous use-cases. I don't know if they still do that today, but one can get creative real quick :-). > > More worrying is that 2 million routes will soon not be enough to > install all routes with a backup route, invalidating BGP FRR. I have a niggling feeling this will be solved before we get there. Now, whether we can afford it is a whole other matter. Mark.
