The CiscoView Monitor Port window displays the following error information for a Token Ring port:
Beacon Frames (Hard Errors)
You can also select Unusual Token Ring Errors from the CATEGORY box to display additional information.
Indicates the number of detected, immediately recoverable, fatal errors (that is, the number of times the interface is transmitting or receiving beacon frames).
Indicates the number of soft errors or recoverable errors (by the MAC protocol) that have been detected.
This counter increments when there is not enough buffer space to receive an incoming frame.