tx/rx woes

Donald Becker becker@cesdis1.gsfc.nasa.gov
Mon Aug 10 16:04:14 1998


On Mon, 10 Aug 1998, Allen B. Cummings wrote:

>   This problem turned out to be rather more odd than I'd first expected, and
..
> At any rate, I played around both with "hardware solutions" and "software
> solutions", but in the end nothing worked until I shoved two Vortex cards
> in. Finally, I was transmitting and receiving. What's even neater is that
> when I went back to just one card, everything still worked.

Look *very* carefully at the cable ends you were using.  I would red-tag
these cables as possible problem sources.

For more recent cards with MII transceivers the 'mii-diag' would have told
you if negotiation didn't complete.

Donald Becker					  becker@cesdis.gsfc.nasa.gov
USRA-CESDIS, Center of Excellence in Space Data and Information Sciences.
Code 930.5, Goddard Space Flight Center,  Greenbelt, MD.  20771
301-286-0882	     http://cesdis.gsfc.nasa.gov/people/becker/whoiam.html