Designing and Managing Behavior Models - Using Polls -
Tips for Using Property Groups and Properties      Listing Polls

Using Polls

NerveCenter polls enable you to retrieve information from SNMP agents on devices in order to determine the status of those devices. The Role of a Poll in a Behavior Model depicts the role that a poll plays in a behavior model

The Role of a Poll in a Behavior Model

To function as part of a behavior model, a poll must be tied to one or more alarms by means of one or more triggers. If the poll does not define a trigger that can affect a pending alarm transition, the poll is never sent to a device. This behavior is part of NerveCenter's smart polling feature.

Other aspects of this smart polling feature are that NerveCenter doesn't send a poll to a node unless the poll's property is in the node's property group and that NerveCenter never sends a suppressible poll to a suppressed node. Together, these behaviors sharply curtail the amount of network traffic NerveCenter generates by polling SNMP agents.

The remainder of this chapter explains in detail how to create and work with polls. Refer to the following sections:

Section	Description
Listing Polls	Explains how to display a list of the polls currently defined in the NerveCenter database.
Defining a Poll	Explains how to create a new poll.
Writing a Poll Condition	Explains how to write the poll condition for a new poll.
Documenting a Poll	Explains how to add notes (documentation) to a poll.
Enabling a Poll	Explains how to turn a poll on.