nanog mailing list archives
Re: Software router state of the art
From: Florian Weimer <fw () deneb enyo de>
Date: Sat, 26 Jul 2008 12:41:29 +0200
* Adrian Chadd:
1 mil pps has been broken that way, but it uses lots of cores to get there. (8, I think?)
Was this with one packet flow, or with millions of them? Traditionally, software routing performance on hosts systems has been optimized for few and rather long flows. Anyway, with multi-core, you don't need funky algorithms for incremental FIB updates anymore (if you don't need sub-second convergence and stuff like that). As a result, you can use really dumb multi-way trees for which a lookup takes something like 100 CPU cycles (significantly less for non-DoS traffic with higher locality).
Current thread:
- Re: Software router state of the art, (continued)
- 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 Adam Armstrong (Jul 23)
- Re: Software router state of the art Chris Adams (Jul 23)
- Re: Software router state of the art Jeffrey Ollie (Jul 23)
- Re: Software router state of the art Florian Weimer (Jul 26)
- Re: Software router state of the art Adrian Chadd (Jul 26)
- Re: Software router state of the art Colin Alston (Jul 26)
- Re: Software router state of the art Adrian Chadd (Jul 26)
- Re: Software router state of the art Dorn Hetzel (Jul 26)
- Re: Software router state of the art William Herrin (Jul 26)
- Re: Software router state of the art Florian Weimer (Jul 26)
- Re: Software router state of the art Tony Finch (Jul 27)
- Re: Software router state of the art Joe Greco (Jul 26)
- Re: Software router state of the art Sargun Dhillon (Jul 28)
- Re: Software router state of the art Joe Greco (Jul 28)