3Com 3C16685 User Manual page 55

If there is a high number of errors, it could indicate that there is faulty
equipment somewhere on the network segments that are connected
to the ports, or that the network is badly configured.
Displaying and Changing Port Information
From the Ethernet sub-menu you can display information about your
network since the Hub was last reset, initialized or powered off/on.
The new commands allow you to:
Enable and disable auto-negotiation for Ethernet ports on the
Hub
Display statistical information about Ethernet ports on the Hub
Specify the speed of Ethernet ports on the Hub
Enable and disable security for Ethernet ports on the Hub
Commands 55