I recently got two AT1700 Ethernet cards. They seem to work, except when I
ping one machine from the other, I get about 100 duplicate pings for every one
that goes through. After the first ping, the duplicates go out in succession
until the transfer times takes about 1000 milliseconds per ping.
This curious phenomenon takes place on both machines. I have tried all possible
IRQs (3, 4, 5, 9) with no change. I can't figure out if this is a hardware
problem or a software problem. In the /etc/rc.d/rc.inet1 script, I call
ifconfig to match the IP address to eth0, then I call route to route packets
to the network address. Each machine can ping its own IP address. All the
network functions such as rlogin and rcp work, but I know I'm getting really
lousy performance, based on the results of the ping.
I seem to have no luck with network cards. I initially bought AT1500 cards,
but I was having bus mastering conflict problems, so I switched to the AT1700s.
If anyone can point me in the right direction, I would appreciate any