nanog mailing list archives
Re: Software router state of the art
From: Adrian Chadd <adrian () creative net au>
Date: Thu, 24 Jul 2008 00:17:40 +0800
On Wed, Jul 23, 2008, Charles Wyble wrote:
This might be of interest: http://nrg.cs.ucl.ac.uk/mjh/tmp/vrouter-perf.pdf
Various FreeBSD related guys are working on parallelising the forwarding layer enough to use the multiple tx/rx queues in some chipsets such as the Intel gig/10ge stuff. 1 mil pps has been broken that way, but it uses lots of cores to get there. (8, I think?) Linux apparently is/has headed down this path. If someone were to spend some time dissecting the rest of the code to also optimise the single-core throughput then you may see some interesting software routers using commodity hardware (for values of "commodity" roughly equal to "PC servers", rather than "magic lotsacore core MIPS with some extra glue for jacking packets around." Sure its not a CRS-1, but reliably doing a mil pps with a smattering of low-touch features would be rather useful, no? (Then, add say, l2tp/ppp into that mix, just as a crazy on-topic example..) Adrian
Current thread:
- Software router state of the art Zed Usser (Jul 23)
- Re: Software router state of the art Valdis . Kletnieks (Jul 23)
- Re: Software router state of the art Charles Wyble (Jul 23)
- Re: Software router state of the art Adrian Chadd (Jul 23)
- Re: Software router state of the art Chris Marlatt (Jul 23)
- Re: Software router state of the art Adrian Chadd (Jul 23)
- Re: Software router state of the art randal k (Jul 23)
- RE: Software router state of the art Tim Sanderson (Jul 24)
- Re: Software router state of the art Justin Sharp (Jul 25)
- Re: Software router state of the art Joe Greco (Jul 25)
- Re: Software router state of the art Sargun Dhillon (Jul 25)
- Re: Software router state of the art Joe Greco (Jul 25)
- Re: Software router state of the art Charles Wyble (Jul 23)
- Re: Software router state of the art Valdis . Kletnieks (Jul 23)
- Re: Software router state of the art Adam Armstrong (Jul 23)
- Re: Software router state of the art Chris Adams (Jul 23)