We have an issue between a Catalyst Switch and a 3Com Switch. Everithing seem fine, the users and network speed are ok, but we start seeing "oversize packets" in the 3Com. The oversize counter in the 3Com switch that connects to the Catalyst is growing. We change the 3Com and the Cisco (originally was a 4503 and then we change it to a 2950) with the same results. The 3Com is 3300XM. The port is a 802.1q trunk with 3 vlans (default and 2 more).
Any ideas,
-as