host1(config-mgmtevent-trigger)#existence-test test-type changed
2. Define the startup threshold condition—absent or present—that you want this
trigger to use.
host1(config-mgmtevent-trigger)#existence-test startup absent
3. Specify the events that you want the existence-test trigger to use by entering an
event owner name and event name.
NOTE: You do not need to bind a failure event to a trigger. If you create a failure
event, if a failure occurs, and if the trigger owner and the event owner are the same,
the router sends the trap.
host1(config-mgmtevent-trigger)#boolean-test event george trigger1
When specifying an event, make sure to use the exact owner name and event
name.
4. Specify the agent on which the object resides.
host1(config-mgmtevent-trigger)#agent context-name router1
You can obtain the agent context name for a virtual router from the show snmp
agent command. The agent context name is independent of the virtual router
name.
5. Enable the trigger.
host1(config-mgmtevent-trigger)#enable
Once enabled, you cannot edit an event or trigger configuration. To change an
enabled event or trigger, you must delete it and re-create it.
Defining a Threshold Test
To define a threshold test:
1. Define the threshold-test values that you want this trigger to use.
NOTE: The rising value must always be larger than the falling value. Entering a lower
rising value than a falling value will provide invalid results or errors.
■absolute-value—Use when defining absolute threshold values
host1(config-mgmtevent-trigger)#threshold-test absolute-value rising 2000
falling 1900
■delta-value—Use when defining delta threshold values
host1(config-mgmtevent-trigger)#threshold-test delta-value rising 2000 falling
1900
Configuring the SNMP Server Event Manager â– 183
Chapter 4: Configuring SNMP
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