By that point router vendors will hopefully have moved to 64-bit CPUs.
18446744073709551616 routes will hopefully not happen until after I retire,
so you young whippersnappers will be on your own on that one.
So, whatever happened to that whole "the internet will catch fire when
we get to 280K routing table entries" or whatever it was?
We added memory where we could, or bought bigger routers. The new (conventional wisdom) limit is 1M routes.
I think you mean 512k IPv4 with 256k of IPv6 (taking double space).
if you're still on a platform with 40Mbit cams it's beginning look kinda
tight as an internet router. you've probably got less than a year to
figure out what to do about this.
an f10 ej linecard cam paritioning scheme for example looks something like.
We we long ago have switch to routers that are capable of handling
more or we will succeed in making multi homing work well enough
with PA addresses that we don't get there.
I know a few people had issues around the 256k barrier from tcam based platforms. Expect a lot of BGP instability as people react to 512k entries in their fib
