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13.3 RMON
RMON (Remote Monitoring) basing on SNMP (Simple Network Management Protocol)
architecture, functions to monitor the network. RMON is currently a commonly used network
management standard defined by Internet Engineering Task Force (IETF), which is mainly used to
monitor the data traffic across a network segment or even the entire network so as to enable the
network administrator to take the protection measures in time to avoid any network malfunction. In
addition, RMON MIB records network statistics information of network performance and
malfunction periodically, based on which the management station can monitor network at any time
effectively. RMON is helpful for network administrator to manage the large-scale network since it
reduces the communication traffic between management station and managed agent.
RMON Group
This switch supports the following four RMON Groups defined on the RMON standard (RFC1757):
History Group, Event Group, Statistic Group and Alarm Group.
RMON Group Function
History Group After a history group is configured, the switch collects and records network
statistics information periodically, based on which the management station
can monitor network effectively.
Event Group Event Group is used to define RMON events. Alarms occur when an event is
detected.
Statistic Group Statistic Group is set to monitor the statistic of alarm variables on the specific
ports.
Alarm Group Alarm Group is configured to monitor the specific alarm variables. When the
value of a monitored variable exceeds the threshold, an alarm event is
generated, which triggers the switch to act in the set way.
The RMON Groups can be configured on the History Control, Event Config and Alarm Config
pages.
13.3.1 History Control
On this page, you can configure the History Group for RMON.
Choose the menu SNMP→RMON→History Control to load the following page.
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