Chapter 13: Token Ring Cards
Token Ring Operational Detail
SmartBits System Reference 181
Counters held on the TR Smartcard that originate from internal counts, ring events or
directly decoded MAC frames are tabulated below.
Counter Size Counts
Tx Frames 32 Number of frames transmitted.
Tx Bytes 32 Number of bytes transmitted.
Rx Frames 32 Number of frames on the ring.
Rx Bytes 32 Number of bytes on the ring.
Rx MAC 32 Number of MAC frames on the ring.
Trigger Counter 32 Trigger count.
Token Errors 32 Number of corrupted tokens.
FCS Errors 32 Frames that have FCS (CRC) errors.
Oversized 32 Frames that exceed the maximum size for the ring speed.
Aborted Frames 32 Frames that ended with an Abort Delimiter.
Line Errors 32 Line Error Events.
Burst Errors 32 Burst Error Events.
TRT 16 Token Rotation Time (the raw count is Toke ns per
Millisecond).
Latency Count 32 Latency counter (i.e. time count from board start, stopped by a
trigger event).
Purge Events 16 Number of times Ring Purge MAC frames detected.
Claim Events 16 Number of times Claim MAC frames detected.
Beacon Events 16 Number of times Beacon MAC frames detected.
Insertions 16 Number of Request Initialization MAC frames.
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