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Chapter 4 - Operation and Administration
BreezeACCESS VL System Manual
140
4.2.6.2.6.4 Show Best AU Parameters and Data
The Show Best AU Parameters and Data option displays the applicable
information:
The Neighboring AU Data table displays the following details for each AU with
which the unit can communicate:
MAC Address
SNR of the received signal
RSSI of the received signal
Mark - The computed quality mark for the AU.
Full - The association load status of the AU. It is defined as full if the number
of SUs associated with the AU has reached the maximum allowed according to
the value of the Maximum Number of Associations parameter. An AU whose
associations load status is full cannot be selected as the Best AU, even if its
computed mark is the highest.
ESSID - The ESSID of the AU.
In addition to the neighboring AU data table, the following information is
displayed:
Best AU Support
Preferred AU MAC Address
Number of Scanning Attempts
Associated AU MAC Address (the MAC address of the selected AU)
4.2.6.2.7 Scanning Mode (SU only)
The Scanning Mode parameter defines whether the SU will use Passive or Active
scanning when searching for an AU.
In passive scanning, the SU “listens” to the wireless medium for approximately
two seconds at each frequency, searching for beacons. The disassociation period,
which is the time from the moment the link was lost until the SU decides that it
should start searching for another AU, is approximately seven seconds.
In some situations when there is a high probability that SUs might need to roam
among different AUs, the use of active scanning enables to significantly reduce