Alarms

Alarms are useful when you need to know when the values of a variable go out of range. You can define an RMON alarm for any MIB variable that resolves to an integer value. You cannot use string variables (such as system description) as alarm variables.

All alarms share the following characteristics:

• An upper and lower threshold value is defined.
• A corresponding rising and falling event occurs.
• An alarm interval or polling period is reached.

When alarms are activated, you can view the activity in a log or a trap log, or you can create a script to notify you by beeping a console, sending e-mail, or calling a pager.