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Maximum Connection Heartbeat Period IT policy rule

Description

This rule specifies the maximum connection heartbeat period (in seconds). During each heartbeat period, a paired BlackBerry® device or computer sends a heartbeat which the BlackBerry® Smart Card Reader acknowledges. If either side fails to send or acknowledge a heartbeat in the maximum heartbeat period, the BlackBerry device or computer closes the Bluetooth® connection. The permitted range is 60 through 3600 seconds.

Note: If the disconnected timer is turned on, it starts when the connection closes. A BlackBerry device or computer deletes the secure pairing keys when the disconnected timeout expires.

Default value

The default value is a null value. The heartbeat period is turned off.

Usage

Use this rule to prevent an attacker from using a low-level Bluetooth heartbeat period to keep a Bluetooth connection between a BlackBerry device or computer and a BlackBerry Smart Card Reader open and the secure pairing keys present.

If you configure this rule, the user cannot turn off the heartbeat period but can change the Connection Heartbeat Period field on a BlackBerry device or a computer to a lower value.

If you do not configure this rule, the user can change the Connection Heartbeat Period field to any value.

If you configure a low value, such as 1, 2, or 5 minutes, Bluetooth traffic increases. The increased traffic might affect the battery power level of the BlackBerry device and BlackBerry Smart Card Reader.

Dependencies

You can use the Maximum BlackBerry Disconnected Timeout and Maximum PC Disconnected Timeout IT policy rules to specify the BlackBerry device and the computer disconnected timers.

Minimum requirements

  • Java® based BlackBerry device
  • BlackBerry® Device Software version 4.0
  • BlackBerry® Enterprise Server version 4.0 SP2
  • BlackBerry Smart Card Reader software version 1.0

Exceptions

The BlackBerry® Enterprise Server for Novell® GroupWise® does not support this rule.

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