U
SING

RMON

9-4

RMON Utilities
The RMON Manager currently provides access to all nine RMON groups, as shown in the following table. Most
of SMC’s intelligent products provide support for mini-RMON (which include Statistics, History, Alarms and
Events). This selection covers key information requ ired to manage your network on a regular basis, and also
switches, and especially on all backbone switches. An external RMON probe that supports all nine RMON groups
can then be used for extended troubleshooting when needed.
Table 9-3 RMON Groups
Group Description
Statistics Shows bandwidth utilization, counters for network traffic, errors and collisions, as well as packet size
distribution.
History Periodically samples and saves information from the statistics group.
Hosts Maintain s statistics on each host attached to the network device monitored by the probe.
Host Top N Displays a specified subset of statistics for a selected number of top users.
Matrix Maintains statistics on traffic passing between node pairs.
Alarms Sets thresholds for RMON variables, which can subsequently trigger response events.
Events Defines the action to take when an alarm is triggered, including logging the alarm, generating a trap
message, or triggering a capture channel.
Filters Filters a stream of packets that match the specified criteria.
Capture Configures the buffers used to store packets generated from the Filter grou p.