Steven M. Bellovin wrote:
> In message <43576088.1050909@riscworks.net>, Timo Schoeler writes:
> 
>>Steven M. Bellovin wrote:
> 
> 
>>>
>>>That sure sounds like a collision problem.  It could be the switch or 
>>>its configuration, it could be a full/half-duplex mismatch (try setting 
>>>that explicitl), or it could be something about the NIC or driver.
>>
>>hi,
>>
>>i tried this now on a manageable switch (Nortel 450):
>>
>>* running in full duplex mode not a single error occurs (i used a 4GByte 
>>file and transferred it via ftp);
>>
>>* running in half duplex mode (set on the switch) shows the problem as 
>>already written.
>>
> 
> 
> The next step is to try it on your original switch, but setting the 
> interface mode explicitly to full- or half-duplex.  I suspect a 
> negotiation problem, though I won't speculate if it's in the driver or 
> your switch.

all done, i've even used different switches -- always the same.

maybe a problem in gem or the phy's driver?

timo