Rmon Groups - 3Com CoreBuilder 2500 User Manual

RMON Groups

The CoreBuilder 2500 system supports seven of the RMON groups that
the IETF has defined. These seven groups are described in Table 15-1.
Table 15-1 RMON Groups Supported in the CoreBuilder 2500
Group
Group Number
Statistics 1
History 2
Alarm 3
Host 4
HostTopN 5
Matrix 6
Event 9
The CoreBuilder 2500 system also supports the RMON/FDDI extension
groups that the AXON Enterprise-specific MIB specifies. See Table 15-2.
Table 15-2 RMON/FDDI Extension Groups Supported in the CoreBuilder 2500
Group
Group Number
axFDDIStatistics axFDDI
group 1
axFDDIHistory axFDDI
group 2
Purpose
Maintains utilization and error statistics for the
segment being monitored
Gathers and stores periodic statistical samples from
the statistics group
Allows you to define thresholds for any MIB variable
and trigger alarms
Discovers new hosts on the network by keeping a
list of source and destination physical addresses that
are seen in good packets
Allows you to prepare reports that describe the
hosts that top a list sorted by one of their statistics
Stores statistics for conversations between pairs of
addresses
Allows you to define actions (generate traps, log
alarms, or both) based on alarms
Purpose
Maintains utilization and error statistics for
the monitored segment
Gathers and stores periodic statistical
samples from the statistics group
RMON Groups 15-3