Subject: Re: gem (ERI/GEM/GMAC Ethernet device driver) has problems on macppc
To: Steven M. Bellovin <>
From: Timo Schoeler <>
List: current-users
Date: 10/20/2005 16:24:22
Steven M. Bellovin wrote:
> In message <>, 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.
>>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?