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Manageable 8/9-Port Switch
SNMP & RMON MANAGEMENT
OVERVIEW
SNMP AGENT AND MIB-2 (RFC 1213)
This section describes the switch’s Simple Network Management Protocol (SNMP) and
Remote Monitoring (RMON) capabilities.
The SNMP Agent running on the switch manager CPU is responsible for:
- Retrieving MIB counters from various layers of software modules according to the
SNMP GET/GET NEXT frame messages.
- Setting MIB variables according to the SNMP SET frame message.
- Generating an SNMP TRAP frame message to the Network Management Station if the
threshold of a certain MIB counter is reached or if other trap conditions (such as the fol-
lowing) are met:
RMON is an abbreviation for the Remote Monitoring MIB (Management Information Base).
RMON is a system defined by the Internet Engineering Task Force (IETF)
document RFC 1757, which defines how networks can be monitored remotely.
RMONs typically consist of two components: an RMON probe and a management worksta-
tion:
- The RMON probe is an intelligent device or software agent that continually
collects statistics about a LAN segment or VLAN. The RMON probe transfers
the collected data to a management workstation on request or when a
pre-defined threshold is reached.
- The management workstation collects the statistics that the RMON probe
gathers. The workstation can reside on the same network as the probe, or it
can have an in-band or out-of-band connection to the probe.
The switch provides RMON capabilities that allow network administrators to set
parameters and view statistical counters defined in MIB-II, Bridge MIB, and RMON MIB.
RMON activities are performed at a Network Management Station running an SNMP net-
work management application with graphical user interface.
User’s Manual 80