Alvarion BreezeACCESS VL System Manual page 185

4.2.6.2.15 Lost Beacons Transmission Watchdog Threshold (AU only)
When it is unable to send beacon frames for a predetermined period of time, such
as in the case of interferences, the AU resets itself. The Lost Beacons
Transmission Threshold parameter represents the number of consecutive lost
beacons after which the unit will reset itself.
The range for this parameter is 100 – 1000 or 0. When the parameter is set to 0,
this feature is disabled, i.e. internal refresh will never be performed.
The default value is 218.
4.2.6.2.16 Disassociate (AU only)
The Disassociate feature enables disassociating all SUs associated with the AU or
a selected SU. This feature is useful during configuration changes, enabling to
force the SU(s) to re-initiate the association process, including the search for the
best AU (or a preferred AU) using the Best AU process, without performing a full
reset.
The Disassociate submenu includes two options:
Disassociate All SUs
Disassociate SU By MAC Address: to disassociate a selected SU
4.2.6.2.17 Noise Immunity Control
Noise Immunity Control parameters are available only in units with HW Revision
C and higher, except to the Pulse Detection Sensitivity parameter that is available
also in units with HW Revision B.
The Adaptive Noise Immunity (ANI) mechanism is designed to reduce the wireless
physical layer errors and by that enhance the processing power of the unit,
delivering higher packet processing efficiency.
This ANI mechanism is triggered by the rate of detected Physical Errors and it is
modifying different thresholds affecting the immunity to specific interference
types.
This feature, active by default, exists in all units with HW revision C and higher
running SW version 3.0 and higher. Starting in SW version 4.0, the processing
power of the system has been increased dramatically. When using version 4.0 the
units are capable to process more packets per seconds, including physical error
packets. As a result, the ANI mechanism (triggered by the number of received
error packets) may not function properly in certain scenarios, resulting in link
performances that are far below the expectations. The option of manually
controlling the various parameters used by the ANI mechanism enables to
Operation and Administration
Menus and Parameters
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