Disable Exponential Backoff (retry) on Ethernet?

[Mike Karels]

> Len Gross wrote:
> > Thanks so much for the response.  Here is some additional information.
> > 
> > I'm trying to emulate an RF network where there are colisions (e.g. "Aloha"
> > type protocol) so I actually need collisions!  I had forgotten that modern
> > hardware
> > essentially eliminated them.  So, lets say I can find/use an "old hub",
> > can I control the number of retries?  Maybe I have to find some old NICs and
> > old drivers?

> That would be very NIC specific. Retries are done in NIC hardware as far 
> as i know.

The last NICs that I remember with control over retries were some
of the original 3Com NICs.  They supported only 10Base5, the original
thick coax Ethernet (remember vampire taps?).  They plugged into a
Unibus on a VAX, or a PDP-11 I suppose.  I think they were about
$3000 each at the time.

		Mike