Subject: Re: Networking speed
To: Manuel Bouyer <email@example.com>
From: Mark White <firstname.lastname@example.org>
Date: 09/30/2004 18:46:41
Manuel Bouyer writes:
> On Thu, Sep 30, 2004 at 12:34:36PM +0100, Mark White wrote:
> > I'm having fairly regular problems with transfer speed, and
> > wondered if anybody could suggest anything I could try.
> > I have a small network with two NetBSD/i386 installs (a
> > Duron with 2.0_BETA "mirkwood" and an elderly Pentium with
> > 1.6 doing firewall duties "lorien"), plus a few macs. Both
> > i386s have Sundance ST-201 NICs, all on a Netgear FS108.
> I tried to get those adapters work properly at one time (I even
> downloaded the datasheet for them). Unfortunably these NICs have a
> very small amount of on-board buffer (2k), which means it will loose
> packets if there are other activities on the PCI bus.
Ok, noted; I'd seen a few recommendations for these, but not
investigated the hardware much. The actual cards are D-link
DFE-550TXs, by the way, with the ste(4) driver. Could a
dropped packet cause a second or so wait in the stream?
However, I've seen the same problem on this machine with a
vr(4) device (VIA Rhine chipset on some other D-link). Plus
at a given moment it doesn't seem to effect communication
with other machines on the network...