We are having issues with a Barracuda Spam Firewall 300 and their support is asking for the MTU setting on the switch. We have connected the Barracuda to two other switches and replaced the Ethernet cable and still have excessive collisions - considering we are seeing none from any other network devices.
The 3Com 4400 would be set to the defaults (whatever they may be), but, I have no way of determining what that is and my discussions with Barracuda Networks are at a standstill until I furnish them the information. The Barracuda device MTU is set to 1500.
Any suggestions or info would be appreciated!