[vortex-bug] [3c905B] 2kb/s receive, 30kb/s transmit

[Bogdan Costescu]

On Mon, 16 Sep 2002, [iso-8859-1] Adam wrote:

> But now all is pear-shaped, and I CANNOT get a
> (relatively) newly installed machine to work at more
> than 2k/s receive, 31k/s transmit. (this is the same
> symptom that normally occurs when there are
> auto-negotiation problems).

Hmm, most of the cases that I've seen have one direction working pretty 
well. But in your case the speeds are way too low anyway.

> I have tried:
>  - options = 0 or 2 or 10 (normally forcing 10baseT
> fixes things)
>  - full_duplex = 0 (sometimes duplex problems too?)

As you said that you've seen similar problems reported, you should have 
also seen the first thing that what we usually ask: output of "mii-diag 
-v" (mii-diag can be obtained from ftp://ftp.scyld.com/pub/diag).

mii-diag can also be used to force the transceiver, so that you can see 
what settings work, before "permanently" using them in /etc/modules.conf.

> ...I am 99% sure I've had the same model 3com NIC working from the same
> Mandrake CD's before)

As reflected in some posts of few weeks ago, not all NICs are created 
equal. Especially the forged ones.

-- 
Bogdan Costescu

IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: Bogdan.Costescu@IWR.Uni-Heidelberg.De