Cisco Systems 3750E manual Rmon event number description string log owner string, 31-4

Chapter 31 Configuring RMON

Configuring RMON

	Command	Purpose
Step 3
	rmon event number [description string] [log] [owner string]	Add an event in the RMON event table that is
	[trap community]	associated with an RMON event number.
		• For number, assign an event number. The range
		is 1 to 65535.
		• (Optional) For description string, specify a
		description of the event.
		• (Optional) Use the log keyword to generate an
		RMON log entry when the event is triggered.
		• (Optional) For owner string, specify the owner
		of this event.
		• (Optional) For trap community, enter the
		SNMP community string used for this trap.
Step 4
	end	Return to privileged EXEC mode.
Step 5
	show running-config	Verify your entries.
Step 6
	copy running-config startup-config	(Optional) Save your entries in the configuration
		file.

To disable an alarm, use the no rmon alarm number global configuration command on each alarm you configured. You cannot disable at once all the alarms that you configured. To disable an event, use the no rmon event number global configuration command. To learn more about alarms and events and how they interact with each other, see RFC 1757.

You can set an alarm on any MIB object. The following example configures RMON alarm number 10 by using the rmon alarm command. The alarm monitors the MIB variable ifEntry.20.1 once every 20 seconds until the alarm is disabled and checks the change in the variable’s rise or fall. If the ifEntry.20.1 value shows a MIB counter increase of 15 or more, such as from 100000 to 100015, the alarm is triggered. The alarm in turn triggers event number 1, which is configured with the rmon event command. Possible events can include a log entry or an SNMP trap. If the ifEntry.20.1 value changes by 0, the alarm is reset and can be triggered again.

Switch(config)# rmon alarm 10 ifEntry.20.1 20 delta rising-threshold 15 1

falling-threshold 0 owner jjohnson

The following example creates RMON event number 1 by using the rmon event command. The event is defined as High ifOutErrors and generates a log entry when the event is triggered by the alarm. The user jjones owns the row that is created in the event table by this command. This example also generates an SNMP trap when the event is triggered.

Switch(config)# rmon event 1 log trap eventtrap description "High ifOutErrors" owner

jjones

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

31-4 OL-9775-02