User's Manual

Menus and Parameters
Manual Revision 1.0
4-49
! 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)
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 media 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 the link establishment time. This is achieved by
using shorter dwell periods, transmitting a Probe Request at each
frequency. This reduces the time spent at each frequency as well as the
disassociation period.
When DFS Option is enabled, Scanning Mode is forced to Passive.
The default selection is Passive.