Manual Part 2

Wireless Array
334 Configuring the Wireless Array
About Standby Mode
Standby Mode supports the Array-to-Array fail-over capability. When you enable
Standby Mode, the Array functions as a backup unit, and it enables its radios if it
detects that its designated target Array has failed. The use of redundant Arrays to
provide this fail-over capability allows Arrays to be used in mission-critical
applications. In Standby Mode, an Array monitors beacons from the target Array.
When the target has not been heard from for 40 seconds, the standby Array
enables its radios until it detects that the target Array has come back online.
Standby Mode is off by default. Note that you must ensure that the configuration
of the standby Array is correct. This window allows you to enable or disable
Standby Mode and specify the primary Array that is the target of the backup unit.
See also, “Failover Planning” on page 47.
Procedure for Configuring Advanced RF Settings
RF Monitor
1. RF Monitor Mode: RF monitoring permits the operation of features like
intrusion detection. The monitor may operate in Dedicated mode, or in
Timeshare mode which allows the radio to divide its time between
monitoring and acting as a standard radio that allows stations to associate
to it. Timeshare mode is especially useful for small Arrays with two IAPs,
such as the XR-500/600 and XR-1000 Series, allowing one IAP to be
shared between monitoring the airwaves for problems and providing
services to stations. Settings allow you to give priority to monitoring or
wireless services, depending on your needs. The default Monitor Mode is
Off for the XR-500 and XR-600 Series, Timeshare mode for XR-1000
Series, and Dedicated for XR-2000 and above.
If Timeshare mode is selected, you may adjust the following settings:
• Timeshare Scanning Interval (6-600): number of seconds between
monitor (off-channel) scans.
• Timeshare Station Threshold (0-240): when the number of stations
associated to the monitor radio exceeds this threshold, scanning is
halted.