Seth is completely correct that it's all about CPU. Don't quote me but I think we rate the 3825 at about 300 kpps(number is out of date so newer IOS may not reach this number) . This is likely a 0 feature number so it could be much lower if QoS, GRE, uRPF, etc, etc, etc are used.
-Ben On Jul 29, 2010, at 10:10 PM, Seth Mattinen wrote: > On 7/29/2010 15:07, Paul Stewart wrote: >> We have several in production but have never pushed them to their limits. >> One that comes to mind is a 3825 with max memory/max flash - it's going DHCP >> services to 1200 students in a university residence, handing off a few meg >> of voice traffic to those students and running two full BGP tables providing >> IP Transit at 100 meg peak to the university as well. Nothing really fancy >> but the CPU never peaks above 9% on average. >> >> Another 3825 is currently running as a POP router handling about 130Mb/s of >> peak traffic, runs a good size OSPF table and has 16 port Gig card fully >> populated with each port doing routing. Peak CPU is 11% average on that >> box. >> >> I have seen some customers push them with 300-400Mb/s of traffic but am not >> sure how they really handled at that point - whether or not the CPU is >> pushing it or not. Cisco 7206VXR with NPE-2G comes to mind if you don't >> want any hassles with higher traffic levels - of course you're into higher >> budget too ;) >> > > > It's all CPU on an ISR or 7200. What matters is the packet size. It can > handle flows with large packets beyond what Cisco would officially > recommend them for (i.e. a file transfer), but throw a lot of tiny UDP > at it you'll quickly run out of headroom far below what you would expect. > > ~Seth > _______________________________________________ > 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/
