3Com 4007, Implementation Manual, Page: 635 / 684

Remote Monitoring (RMON) 635
RMON-1 Groups The system supports seven of the RMON-1 groups that the IETF defines.
Table 97 briefly describes these groups.
The Layer 2 Switching Modules and switch fabric modules support four
RMON-1 groups: groups 1, 2, 3, and 9. Multilayer Switching Modules
support seven groups: 1, 2, 3, 4, 5, 6, and 9.
The system also supports the RMON/FDDI extension groups that the
AXON Enterprise-specific MIB specifies. See Table 98.
Table 97 RMON-1 Groups Supported in the System
RMON-1 Group
Group
Number
Purpose
Statistics 1 Maintains utilization and error statistics for
the segment being monitored
History 2 Gathers and stores periodic statistical
samples from the statistics group
Alarm 3 Allows you to define thresholds for any MIB
variable and trigger alarms
Host 4 Discovers new hosts on the network by
keeping a list of source and destination
physical addresses that are seen in good
packets
HostTopN 5 Allows you to prepare reports that describe
the hosts that top a list sorted by one of their
statistics
Matrix 6 Stores statistics for conversations between
pairs of addresses
Event 9 Allows you to define actions (generate traps,
log alarms, or both) based on alarms
Table 98 RMON/FTable 98DDI Extension Groups
Group
Group
Number
Purpose
axFddiStatistics axFddi
group 1 Maintains utilization and error statistics for
the monitored segment
axFddiHistory axFddi
group 2 Gathers and stores periodic statistical
samples from the statistics group