On Mon, 27 Aug 2007, Eric Gauthier wrote:
Do we have a real date for when this occurs? If you aren't doing uRPF, I thought they ran up to 256,000 routes. (I may not recall correctly)
We ran into this hiccup a few months ago on a Sup720-3B (well, a 3BXL which mistakenly had a 3B card in the chassis, causing the SUP to clock down and act like a 3B), but I think the Sup2's are in a similar situtation. Though the box can handle up to 224k routes, they are set by default to only handle 192k IPv4 + MPLS routes plus 32k IPv6 + IP multicast routes. You can retune this so that you can get up to 224k IPv4 routes, but I've recently seen our Internet table bumping against this. My understanding is that this is a hardware limit, so upgrading is your only option.
The sup2 can actually handle a bit more ipv4 routes than the Sup720(non-3bxl). I don't know if it can go all the way to 256k routes. I can't seem to find any cisco data sheets that specify max ipv4 routes on the sup2. The output from show mls cef hardware suggests 256k is the limit. ---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________