Isolating errors, Non-isolating errors – Cabletron Systems Expansion module 9T122-08 User Manual
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9T122-08 Module Specific Information
Active Monitor Address
Displays the MAC Address of the station that currently is designated as the 
Active Monitor.
ISOLATING ERRORS
Line Errors
Displays the number of corrupt frames that have been detected by a station on the 
token ring.
Burst Errors
Displays the number of times a signal is not received by a station on the token 
ring.
AC Errors
Displays the number of times that two successive AMP or SMP frames are 
received with A and C bits set at zero.
Abort Transmit Errors
Displays the number of times that a station transmits an abort delimiter while 
transmitting.
Internal Errors
Displays the number of times that a station encounters a recoverable internal 
error. This information helps to detect a station in marginal operating condition.
NON-ISOLATING ERRORS
Lost Frame Errors
Displays the number of times that a stationÕs TRR timer expires before the station 
receives the ending delimiter of the frame transmitted.
Frame Copied Errors
Displays the number of times that a node receives a frame with its address as the 
destination address, however the Address Recognized bit is already set to Ф1Х.
Rcvr Congestion Errors
Displays the number of times that a station on the token ring recognizes its 
address, but it cannot copy the frame because the buffer is full.
Token Errors
Displays the number of times that a token on the token ring has encountered a 
problem along its path.