Learning How to Create Behavior Models - How to Use Alarm Scope in Behavior Models - What is Alarm Scope? -
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What is Alarm Scope?

Each alarm has a scope, which is a setting that determines how specifically an alarm will monitor an instance. An alarm scope can be one of the following:

• Enterprise Scope manages one alarm instance for all the applicable devices in the enterprise.
• SubObject Scope manages multiple alarm instances for each managed object. Each interface, port, or other subobject can cause an alarm instance.
• Instance Scope tracks instances for every interface or port that fits the polled condition regardless of the base object. This allows you to track a variety of events for any managed subobject or alarm instance.
• Node Scope manages only one alarm instance of a single device.

Suppose a car rental company were to use NerveCenter alarm scope to keep track of flat tires. Compact Car A has one flat and Mid-Size Car B has two. How can scope be best used in this situation?

A Car Rental Company Uses Alarm Scope to Keep Track of Flats

 
  Enterprise Scope:

• Polls the entire fleet to see if at least one flat tire exists.
• Does not care which car or which tire has a flat. Does not care how many flats exist.
• Notifies the tire repair company since the fleet contains at least one flat tire.

 
  Node Scope:

• Returns information that Compact Car A has at least one flat and Mid-Size Car B has at least one flat.
• Does not care how many or which tires are flat.
• Notifies the reservation system that it is down one compact car and one mid-size car.

 
  SubObject Scope:

• Returns information that Compact Car A has one flat and Mid-Size Car B has two flats.
• Notifies the inventory department, so it can keep track of the number of spare parts needed for each car.

 
  Instance Scope:

• Returns information about the flat tires for Compact Car A and B, but can then monitor other conditions, such as wheel alignment.
• Notifies the inventory department of each condition detected.

As the above example illustrates, scope limits what an alarm monitors. The best scope depends on what information is important for your behavior model.