S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
RMON is an Internet Engineering Task Force (IETF) standard monitoring specification that allows
various network agents and console systems to exchange network monitoring data. You can use the
RMON alarms and events to monitor Cisco MDS 9000 Family switches running the Cisco SAN-OS
Release 2.0(1b) or later software.
This chapter includes the following sections:
All switches in the Cisco MDS 9000 Family support the following RMON functions (defined in RFC
Refer to the Cisco MDS 9000 Family MIB Quick Reference for agent and management information.
Refer to the Cisco MDS 9000 Family Fabric Manager Configuration Guide for information on an
SNMP-compatible network management station.
RMON is disabled by default and no events or alarms are configured in the switch. You can configure
your RMON alarms and events by using the CLI or an SNMP-compatible network management station.
OL-16184-01, Cisco MDS SAN-OS Release 3.x
About RMON, page 51-1
Configuring RMON, page 51-1
RMON Verification, page 51-3
Default Settings, page 51-4
Alarm—Monitors a specific management information base (MIB) object for a specified interval,
triggers an alarm at a specified value (rising threshold), and resets the alarm at another value (falling
threshold). Alarms can be used with events; the alarm triggers an event, which can generate a log
entry or an SNMP trap.
Event—Determines the action to take when an event is triggered by an alarm. The action can be to
generate a log entry, an SNMP trap, or both.
"About SNMP Security" section on page 31-1
C H A P T E R
for SNMP security-related CLI configurations.
Cisco MDS 9000 Family CLI Configuration Guide