Jason Thorpe wrote:
> I really like the Znyx 10/100 4-port cards:

+ many others.


By the number of replys posted, it seems that there is a high degree
of satisfaction with the ZNYX four-port 10/100 cards on NetBSD. 
Am I the only one with problems? Forgive me if I'm missing something
stupid but here is our situation:

Running NetBSD 1.2D on pentium II machines with Znyx 10/100 4-port cards
in the following configuration:


AlphaStation 255     Pentium II      Pentium II      AlphaStation 255
DUX 4.0         ---- NetBSD 1.2D ----NetBSD 1.2D ----DUX 4.0
DEC 10/100 card      Znyx 10/100     Znyx 10/100     DEC 10/100 card



First problem: there is no way to make the link between the two
               pentium machines go to 10 Mb/s (using ifconfig
               has no effect / causes the link to be unusable)
               Actually ifconfig does change the string 100baseTX
               to 10baseT/UTP on the ifconfig -m output, but 
               we can easily make 20 Mb/s flow through the link,
               just as with 100baseTX

Second problem: ifconfig -m does not report the possibility of 
                using full-duplex mode and trying to force it 
                with mediaopt results in an error message

> /current/sbin/ifconfig -m de0
de0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST>
      media: 100baseTX status: active
 supported media: autoselect 100baseTX 10baseT/UTP
       inet 192.170.66.1 netmask 0xffffff00 broadcast 192.170.66.255


Third problem: bidirectional traffic going between the two pentium
               machines has a very high packet loss rate. No problem
               occurs between an alpha machine and the pentium which
               is directly connected to it or 
               when traffic flows in one direction only.


Possible gotchas:

Twisted cable: we do use the twisted terminations cable required when
               making point-to-point connections (called null cable?)

Broken cards: not really because we also tested with Windows NT and
              the cards worked fine (including setting full-duplex mode)

Unmatched half/full duplex mode: since there is no way to set full
               duplex mode, I assume that the driver is using half
               duplex, what shouldn't be a problem (?).



Can anyone help us?

Thanks,


Eduardo