Date: Mon, 22 Apr 1996 08:31:30 -0400
   From: Aaron Brown <abrown@eecs.harvard.edu>

   It seems like one way to get around this problem would be to dynamically
   change the link type when the driver detects loss of carrier to see if
   the other link works. This would even let you do something cool like 
   disconnecting TP and connecting AUI without rebooting :-). The problem
   is that this requires yet more changes to MI code...anyone out there 
   have opinions on this?

The only clean solution to cable selection a boot time I think was
done by Van Jacobson where you send an ethernet packet to yourself
during the probing in a poll loop, and if that transmit times out then
you switch interfaces and time again.

Later,
David S. Miller
davem@caip.rutgers.edu