From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ralph Doncaster Subject: Re: Route cache performance under stress Date: Mon, 9 Jun 2003 09:28:59 -0400 (EDT) Sender: linux-net-owner@vger.kernel.org Message-ID: References: <20030608234926.GA9453@netnation.com> <001001c32e19$81bc7ea0$4a00000a@badass> <20030609064719.GA20613@netnation.com> Reply-To: ralph+d@istop.com Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: CIT/Paul , 'Florian Weimer' , "netdev@oss.sgi.com" , "linux-net@vger.kernel.org" Return-path: To: Simon Kirby In-Reply-To: <20030609064719.GA20613@netnation.com> List-Id: netdev.vger.kernel.org On Sun, 8 Jun 2003, Simon Kirby wrote: > You got a 7200 VXR to do 300kpps? I would have liked to see that. > We couldn't get our 7206 VXR routers to do anything more than about 12 > Mbit/second of small packets, which I believe is about 40,000 packets > per second. This is with CEF disabled, because it ended up duplicating > packets and doing some other strange things with CEF enabled. The trick is finding the good IOS revs. 12.0(7)T and 12.2(11)T have been good ones for me. Finding other ISPs running ciscos to exchange tips and ideas has been much easier than finding folks running linux. A sure-fire way to get flamed is to post to NANOG asking what's the best Linux router setup! For most ISPs it's better to spend $20K on a 7206VXR/NPE-G1 than to spend days trying to figure out what kernel + patch set, NIC, and motherboard combination will squeeze the best performance out of a PC router. And once you've done that you still have zebra quirks to worry about... -Ralph