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TCP/IP Remote Network Monitoring (RMON)
(Page 3 of 3)
RMON Alarms, Events and Statistics
Alarms and events are particularly
useful constructs in RMON, as they allow the immediate communication
of important information to a network management station. The administrator
has full control over what conditions will cause an alarm to be sounded
and how an event is generated. This includes specifying what variables
or statistics to monitor, how often to check them, and what values will
trigger an alarm. A log entry may also be recorded when an event occurs.
If an event results in transmission of a trap message, the administrator
will thus be notified and can decide how to respond, depending on the
severity of the event.
Like all MIB modules and groups,
a particular manufacturer may decide which RMON groups to implement.
However, certain groups are related, such as alarm and event,
and some groups such as statistics are pretty much always implemented
in all RMON probes. Obviously, when RMON is used, the network management
station must be aware of RMON groups and must allow a network management
application to be run that will exploit the capabilities of the RMON
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The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005
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