[vortex] HELP needed: Cross-over connection to Router not working with 3c509C (Tornado)

Bogdan Costescu bogdan.costescu@iwr.uni-heidelberg.de
Fri Feb 7 12:33:00 2003


On Fri, 7 Feb 2003, [iso-8859-1] Cristian Alonso wrote:

> The card is a 905CX-TX-NM

OK, good to know.

> I see no received packets count/bytes or interrupts.

Could you check on the router if packets are received ? This seems to me 
like the first thing we heard about the CX cards: the Rx part was not 
working properly. Supposedly, the later driver versions (at most 1 year 
old) should handle this. It might help to send us the output of 
vortex-diag which prints the manufacturing date; I seem to remember that 
the very first CX cards needed a higher reset time than the rest.

> Tha sounds like a good idea. I am going to ask 3COM about this.

He-he, good luck :-)

> It does not seem to be a cable problem.

OK.

> Anyway, I have changed the cable and it seems that the
> longer the cable is, the better the connection works.

Huh ? You've discovered the holly grail of networking :-)

-- 
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