On Thu, May 29, 2008 at 01:00:44PM +1200, Pshem Kowalczyk wrote: > Hi All, > > We provide L3 and L2 vpns services for our customers. Usually they > have only a few routes (up to 1k), but this time it looks like we'll > be providing transmission for a customer with almost 40k routes. They > want to connect in 4 of our locations (using BGP). So far we ran the > 6500s on standard cef settings: > > FIB TCAM maximum routes : > ======================= > Current :- > ------- > IPv4 + MPLS - 512k (default) > IPv6 + IP Multicast - 256k (default) > > > We have about 200k routes already (both ipv4 and vpnv4) and I started > to wonder how the new customer will affect that. Are only routes > (vpnv4 prefixes) that are in the fib counted (that's what I think) or > will I see an increase of 4 * 40k entries (3 * vpnv4 + native > peering)?
Only best path is loaded to TCAM. What's the easiest way to calculate the memory consumption > that will be caused by the new customer? Not an easy way unfortunately as the datastructures change a lot so the best way is to baseline and graph memory in comparison to number and type of routes. Rodney > > kind regards > Pshem > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
