# existence-test

#### Syntax

existence-test { event eventOwner eventName |
startup { absent | present } | test-type { absent | changed | present } }

no existence-test [ event | startup | test-type ]

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Defines existence test values for the trigger that you are configuring, including binding an event to the existence-test trigger, specifying a startup condition, and defining an existence-test type. The no version deletes the existence-test values for this trigger or removes either the startup condition or event binding.

#### Options

- eventOwner—Name of event owner that partially specifies event to trigger the existence test; string of up to 32 alphanumeric characters
- eventName—Name of event that partially specifies event to trigger the existence test; string of up to 32 alphanumeric characters
- startup—Specifies startup existence condition that you predict the sample to follow; absent or present; you can specify both conditions in the same command
- test-type—Specifies type of existence test to perform; absent, changed, or present; you can specify one, two, or all three conditions in the same command

#### Mode

SNMP Trigger Configuration