Interlogix NS3500-28T-4S User Manual - Manual (Page 342)

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4.14 RMON
RMON is the most important expansion of the standard SNMP. RMON is a set of MIB definitions, used to define
standard network monitor functions and interfaces, enabling the communication between SNMP management
terminals and remote monitors. RMON provides a highly efficient method to monitor actions inside the subnets.
MID of RMON consists of 10 groups. The switch supports the most frequently used group 1, 2, 3 and 9:

Statistics: Maintain basic usage and error statistics for each subnet monitored by the Agent.

History: Record periodical statistic samples available from Statistics.

Alarm: Allow management console users to set any count or integer for sample intervals and alert
thresholds for RMON Agent records.

Event: A list of all events generated by RMON Agent.
Alarm depends on the implementation of Event. Statistics and History display some current or history subnet statistics.
Alarm and Event provide a method to monitor any integer data change in the network, and provide some alerts upon
abnormal events (sending Trap or record in logs).
4.14.1 RMON Statistics
This Page provides a Detail of a specific RMON statistics entry; RMON Statistics screen in Figure 4-14-1 appears.