Re: ne2k-pci uncorrectly detecting collisions ?

[Richard B. Johnson]

On Wed, 5 May 2004, Lucas Nussbaum wrote:

> Hello,
>
> I have experienced problem with the ne2k-pci driver. The symptoms were
> extremly poor performance with TCP. After some investigations, I believe
> it might be caused by problems with detecting collisions.
>

But software doesn't detect collisions. It just records what
hardware said it did. It looks like you have a 10 Mb/s card
on a 100 Mb/s network. The collisions reported are how the
hardware throttles the difference in physical-link speed.

It is possible that software didn't initialize a 100 Mb/s
device and instead initialized it to 10 Mb/s, but you
don't have any evidence of that presented.

Cheers,
Dick Johnson
Penguin : Linux version 2.4.26 on an i686 machine (5557.45 BogoMips).
            Note 96.31% of all statistics are fiction.


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