Problems with D-Link DFE-570TX

[Donald Becker]

On Thu, 21 Oct 1999, Jarlath Burke wrote:

[ Please send to only one of linux-tulip and linux-tulip-bug. ]

> I have two machines using the D-link DFE-570TX quad-channel NIC with the
> Digital DS21143 Tulip chip on Redhat Linux 5.1 kernel 2.0.34 tulip driver
> 0.91.
> I configured the eth0 interface on each NIC and connected them using a
> crossover cable. When I run ttcp I get ~90Mbits/s performance but if I bring
> either of the configured interfaces down and up again, I get a major
> reduction in performance, typically ~25Mbits/s but sometimes as low as
> ~5Mbits/s.

It sounds as if the duplex setting is lost.

Does the same problem occur if the cable is momentarily disconnected?
What does 'tulip-diag -m' report after the problem is triggered?

Donald Becker
Scyld Computing Corporation, and
USRA-CESDIS,   becker@cesdis.gsfc.nasa.gov