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•
Number of active stations on the ring
•
Current status of the ring with the following possible ring states:
− Normal operation
− Ring Purge state
− Claim Token state
− Beacon Frame Streaming state
− Beacon Bit Streaming state
− Beacon Ring Signal Loss state
− Set Recovery Mode state
•
Address of the last beacon sender
•
Address of the last beacon sender′s NAUN
•
Address of the Active Monitor on the segment
•
List of all stations currently or previously detected to be physically present
on this segment
The
RingStationTable
stores status information and statistics of individual
stations detected to be physically present on the local ring. For each station, the
following information is stored in the
RingStationTable
:
•
Station MAC address
•
Its last NAUN
•
Current station state (active, inactive, forced removal)
•
Last ring enter time
•
Last ring exit time
•
Total
Duplicate Address errors
reported by the station
•
Total
Line errors
reported by the station
•
Total
Line errors
reported by the station′s NAUN
•
Total
Internal errors
reported by the station
•
Total
Burst errors
reported by the station
•
Total
Burst errors
reported by the station′s NAUN
•
Total
Address Copied errors
reported by the station′s NAUN
•
Total
Abort errors
reported by the station
•
Total
Lost Frame errors
reported by the station
•
Total
Congestion errors
reported by the station
•
Total
Frame Copied errors
reported by the station
•
Total
Frequency errors
reported by the station
•
Total
Token errors
reported by the station
•
Total
Beacon errors
reported by the station
•
Total
Beacon errors
reported by the station′s NAUN
•
Ring insertion attempts by the station
10.5.1.4 Ring Station Order Group
The token-ring Ring Station Order group maintains a table that lists the ring
stations ordered according to the ring poll with respect to the RMON probe. The
location of each station is denoted by an index. With the RMON probe assigned
an index of one, indexes for other stations are assigned depending on how many
stations downstream they are from the RMON probe.
The station′s MAC address is stored together with its index in the table. This
table can be used as a quick cross-reference for locating stations based on the
way they are ordered.
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