nanog mailing list archives
Re: Gigabit Linux Routers
From: Adrian Chadd <adrian () creative net au>
Date: Thu, 18 Dec 2008 02:23:37 +0900
On Wed, Dec 17, 2008, Chris wrote:
All the responses have been really helpful. Thanks to everyone for being friendly and for taking the time to answer in detail. I've asked a hardware provider to quote for a couple of x86 boxes and I'll look for suitable Intel NICs too. Jim: We're a very small ISP and have a full mix of packet sizes on the network but the vast majority is outbound on port 80 so hopefully that'll help. Any more input will of course be considered. I may post the NIC models for approval if I'm scratching my head again :)
Just FYI, the more recent Intel hardware has multiple hardware TX/RX queues, implemented via seperate (IIRC) PCIe channels, and Linux/FreeBSD is growing support to handle these multiple queues via multiple kernel threads. Ie, multiple CPUs handling packet forwarding. The trick is whether they can pull it off in a way that scales the FIB and RIB lookups and updates across 4 core (and more) boxes. But 40kpps is absolutely doable on one CPU. Some of the FreeBSD guys working on it are looking at supporting 1mil pps + on 10GE cards (in the public source tree), so .. :) Adrian
Current thread:
- Re: Gigabit Linux Routers, (continued)
- Re: Gigabit Linux Routers Alex Thurlow (Dec 17)
- Re: Gigabit Linux Routers Eugeniu Patrascu (Dec 17)
- Re: Gigabit Linux Routers Eugeniu Patrascu (Dec 17)
- Re: Gigabit Linux Routers Florian Weimer (Dec 17)
- Re: Gigabit Linux Routers Alex Thurlow (Dec 17)
- Re: Gigabit Linux Routers Florian Weimer (Dec 18)
- Re: Gigabit Linux Routers Eugeniu Patrascu (Dec 17)
- Re: Gigabit Linux Routers Florian Weimer (Dec 18)
- Re: Gigabit Linux Routers Florian Weimer (Dec 17)
- Re: Gigabit Linux Routers Chris (Dec 17)
- Re: Gigabit Linux Routers Adrian Chadd (Dec 17)
- Advice requested for OpenBSD vs. Linux/OpenBGP vs. Quagga router deployment. Marc Runkel (Dec 17)
- Re: Advice requested for OpenBSD vs. Linux/OpenBGP vs. Quagga router deployment. Adrian Chadd (Dec 17)
- Re: Advice requested for OpenBSD vs. Linux/OpenBGP vs. Quagga router deployment. Scott Francis (Dec 17)
- Re: Advice requested for OpenBSD vs. Linux/OpenBGP vs. Quagga router deployment. Beat Vontobel (Dec 18)
- Re: Advice requested for OpenBSD vs. Linux/OpenBGP vs. Quagga router deployment. Tim Durack (Dec 18)
- Re: Advice requested for OpenBSD vs. Linux/OpenBGP vs. Quagga router deployment. Naveen Nathan (Dec 20)
- Re: Gigabit Linux Routers Sargun Dhillon (Dec 17)