Cabletron Systems TRMMIM manual Error, Active Monitor

Ring Map

Code	Error
0	No problem detected
32	Ring Recovery Error
	The management station has observed claim token MAC frames on the ring.
64	Single Station
	The management station has sensed it is the only station on the ring.
128	Counter Overflow
	One of the management station’s error counters has incremented from 254 to 255.
	Remove Received
256	The management station has received a remove ring station MAC frame request
	and has removed itself from the ring.
	Auto-Removal Error
1024	The management station has failed the lobe wrap test resulting from the beacon
	auto-removal process and has removed itself from the ring.
	Lobe Wire Fault
2048	The management station has detected an open or short circuit in the cable between
	itself and the wiring concentrator or hub.
4096	Transmit Beacon
	The management station is transmitting beacon frames to the ring.
8192	Soft Error
	The management station has transmitted a report error MAC frame.
	Hard Error
16384	The management station is presently transmitting beacon frames to or receiving
	beacon frames from the ring.
32768	Signal Loss
	The management station has detected a loss of signal on the ring.
131072	No Status, Open Not Completed

Table 3-1. Error Status Codes and Definitions

Active Monitor

This field allows you to determine whether or not the management station will participate in active monitor contention. The contention process occurs as part of the recovery procedures initiated after certain ring error situations, and is used to select a new Active Monitor for the ring. If you disallow contention for the selected management station, that station will not participate in the contention process, and will therefore never be chosen as Active Monitor.

3-12 Viewing Station-specific Information