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REMOTE MONITORING (RMON)
T
ECHNOLOGY
This chapter provides an overview of RMON and describes the specific
LANplex® RMON implementation.
What Is RMON? The Remote Monitoring (RMON) Management Information Base (MIB)
provides a way to monitor and analyze a local area network LAN from a
remote location. RMON is defined by the Internet Engineering Task Force
(IETF) in documents RFC 1271 and RFC 1757. A typical RMON
implementation has two components:
■ The Probe — Connects to a LAN segment, examines all the LAN traffic on
that segment and keeps a summary of statistics (including historical data) in
its local memory.
■ The Management Console — Communicates with the probe and collects
the summarized data from it. The console does not need to reside on the
same network as the probe, and can manage the probe through SNMP.
The RMON specification consists almost entirely of the definition of the MIB.
The RMON MIB contains standard MIB variables defined to collect
comprehensive network statistics that alert a network administrator to
significant network events. If the embedded RMON agent operates full time,
it will collect data on the correct port at the time the relevant network
event occurs.
This chapter includes the following information about RMON:
■ Benefits of RMON
■ LANplex RMON implementation
■ The Management Information Base (MIB)
■ Alarms