Ok, I'm going to try to make this as simple as possible so I'll save the
history unless it turns out to be useful.
I'm running UTP from one place, about 30 feet, into a Bay Networks 350T
switch. The rest of the switch connects are Cat5. I've also "tuned down"
this port to be 10bT Full Duplex as opposed to 100bT. When I plug in this
device, ARP stops working. Yes, that's right, ARP. Everything else works
fine, just not ARP. The only guess I have is that a broadcast somehow
electrically couples the whole switch? So here's my questions, any help
1) I thought a switch was supposed to stop this kind of madness? Doesn't it
provide full electrical isolation?
2) Is there something that DOES provide this isolation? Something that
essentially reassembles ethernet frames and provides total electrical
independence? Preferably some sort of mini adapter or converter?
3) Am I likely missing something more trivial here?
Thanks much for any help and sorry for the cross posting but I'm desparate.