3Com 10002211 manual Segment being monitored

RMON Groups B-3

RMON Groups The CoreBuilder system supports seven of the RMON groups defined by the Internet Engineering Task Force (IETF). Table B-1lists these supported groups.

Table B-1 RMON Groups Supported in the CoreBuilder System

	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 an alarm.
Host	4	Discovers new hosts on the network by
		keeping a list of source and destination
		physical addresses seen in good packets.
HostTopN	5	Used to prepare reports that describe the
		hosts that top a list ordered by one of their
		statistics.
Matrix	6	Stores statistics for conversations between
		pairs of addresses.
Events	9	Allows you to define actions based on alarms.
		You can generate traps, log the alarm, or both.

RMON/FDDI Groups The CoreBuilder system supports the RMON/FDDI extensions specified in the AXON Enterprise-specific MIB. Table B-2lists these supported groups.

Table B-2 RMON/FDDI Extension Groups Supported in the CoreBuilder System

Group	Group Number	Purpose
axFDDI	axFDDI group 1	Maintains utilization and error statistics for the
		segment being monitored
axFDDIHistory	axFDDI group 2	Gathers and stores periodic statistical samples
		from the statistics group.