I've a small switch (3512-XL) which is currently connected to nothing but another switch. The connection is an ISL trunk.
I'm seeing a non-trivial amount of inbound traffic to the switch (~65Kb or so; it varies). There's no oubound traffic. What sort of thing would cause that inbound traffic? The one thing of which I can think is broadcast traffic on VLANs for which the switch is configured, but that's far too much traffic for just broadcasts.
Another thing I tried was to explicitly shutdown all ports (but the trunk to the other switch). No change.
For what other sorts of things should I be looking?
Thanks...
Andrew