Subject: Re: IP-Routing Performance?
To: Adolf Hohl <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 01/22/2001 22:04:18
On Mon, Jan 22, 2001 at 05:41:50PM +0100, Adolf Hohl wrote:
> i'm interested in ip-routing performance on gigabit ethernet hardware.
> I don't need exact values, a good supposition is enough.
You mean, build a gigabit router using a NetBSD box ?
I don't have direct experience in this, but I have tested gigabit ethernet
betwen 2 machines: a PC (celeron 400 with some sort of intel chipset) and
alpha DS20 (ev6 at 500Mhz). The alpha can push UDP at ~90MB/s and CPU isn't
at 100% (I don't remember details). the PC was at about 50MB/s with CPU at
100%. So, no go with a PC unless you go with a higth-end motherboard
(a single gigabit is close to the 32bit/33Mhz PCI bus, so you need
2 or more PCI busses, or 64bit slots, or both depending on the number of
adapters you need). I believe my DS20 could drive 2 gigabit at full speed
without troubles, as when doing routing we don't have to cross the
Now latency is another problem ... May not be an issue if you have to route
a lot of concurent flows, but will be if you have a single, large flow.
I don't have numbers on theses.
Manuel Bouyer <email@example.com>