Similar problem here with a Beige G3. When downloading, packets start  
ramping up to speed, then the collision light on the switch flashes  
for a second or so, and then traffic stops for a second or two and  
then it repeats. I thought this was fixed in current but it  
apparently isn't. At least it is useable now, it use to stall  
completely.

On Mar 9, 2006, at 1:05 AM, Andrew Gillham wrote:

> Yes, I have this exact problem.  I seem to remember someone  
> suggesting it was related to the back to back packet rate. (with  
> outbound much faster than inbound)
>
> I've not found a solution and I don't use the B&W enough to be too  
> concerned about 10 meg only.  Note that I have it plugged into an  
> auto negotiating switch port, so I only set it to 10baseT, which  
> gets me 10/half with the switch.  At least that way the switch &  
> Mac are using the same settings and when I boot into MacOSX it just  
> works at 100/full via auto negotiation.
>
> -Andrew
>
> On 3/3/06, Joachim Thiemann <joachim.thiemann@gmail.com> wrote: Hello,
>
> so I have my old Rev.1 b&w G3 working relatively nicely, thanks to
> some tips from people here.  I have now set it up to be a dovecot mail
> server, update dyndns, and act as an ftp, netatalk and samba server.
>
> I now noticed some performance issues: from other Macs (PB G4) writing
> to the server is absolutely abysmal in speed - using afp, smb, or ftp.
> We're talking in the order of 20kb/s.
>
> While I originally suspected the problem being with the daemon
> processes, I played with the bm0 media settings and noted that I get
> much better performance when setting the interface down to 10baseT
> (using ifconfig bm0 media 10baseT mediaopt full-duplex), in the order
> of 200kb/s using ftp.
>
> Has anyone else seen this type of problem?  Is it a buffer overrun
> problem in the bmac driver? Any way I can get full performance using
> 100baseTX?
>
> Thanks,
> Joe.
>
> !DSPAM:440fc9166911560518030!