We actually have noticed that the MAJORITY of 3COM "switches" that we have
inspected are using a default VLAN for all ports, and behave as if they are hubs.
We were standing in a network closet almost a year ago, and had decided NOT to try
to eavesdrop with a sniffer, since we knew we were in a switched environment.
Then we noticed that all the "busy lights" were pulsing in unison. We watched for
a while, and while two of us were arguing about why that would be happening on a
switched network, the third was plugging in his sniffer. We were having a great
philosophical debate when we were interrupted by the facts. These "Switches" were
single VLANed and everyone saw everything.
_-_
gar
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