I needed an answer to this question too and from what I can tell the answer is as follows:
The GRP-B is just a route processor, so the only limitation is ram and CPU speed... assuming convergence times are not an issue, once it runs out of ram, you have a problem... As of today, I am running about 170 MB free on my GRP-B with the most bgp peers (2 full routes + 80 peers + 5 customers + 8 internal routers). Engine0 linecards are not TCAM limited as they run in software, so when the card runs out of ram, that is the limit of its TCAM. We have 256 MB of ram on all our engine0 cards, they run with about 100 MB of free ram as of today. Engine2 cards (three port gigE) for example have already run out of TCAM if they are running ACLs or MPLS. With a straight IPv4 table and no ACLs ours seem to run right at 30% utilization (show ip cef resource). The newer cards have larger TCAMs. If I missed anything, please add it... Then newer cards will have to be commented-on by others as we don't have any data as our network is mostly the older cards. John van Oppen Spectrum Networks LLC 206.973.8302 (Direct) 206.973.8300 (main office) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Drew Weaver Sent: Monday, October 29, 2007 9:40 AM To: [email protected] Subject: [c-nsp] Understanding TCAM/route limitations in the GSR.. Hi, I know I've been quite the pest as of late ;-) I have been recently scouring the net and Cisco's site seeking information on TCAM (or route memory) limitations on the GRP-B (or the GSR) in general. Do they suffer from the same limitations (worse, or better?) with TCAM exhaustion from routes that the 7600/6500 series does? Does anyone know what the "shelf-life" of a GRP-B would be? I haven't really been able to find any hard data on it. Thanks, -Drew _______________________________________________ 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/
