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Global Parameters
Parameter Default Function
Roam Trigger -65 dBm
If signal strength is less than this trigger value, the client looks for a different
Access Point with a stronger signal.
Options are: -50 dBm, -55, -60, -65, -70, -75, -80, -85, -90 dBm or Custom.
Roam Delta 5 dBm
The amount by which a different Access Point signal strength must exceed
the current Access Point signal strength before roaming to the different
Access Point is attempted.
Options are: 5 dBm, 10, 15, 20, 25, 30, 35 dBm or Custom.
Roam Period 10 sec.
The amount of time, after association or a roam scan with no roam, that the
radio collects Received Signal Strength Indication (RSSI) scan data before a
roaming decision is made.
Options are: 5 sec, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 seconds or
Custom.
BG Channel Set Full
Defines the 2.4GHz channels to be scanned for an AP when the radio is
contemplating roaming. By specifying the channels to search, roaming time
may be reduced over scanning all channels.
Options are:
Full (all channels)
1,6,11 (the most commonly used channels)
1,7,13 (for ETSI and TELEC radios only)
Custom.
DFS Channels Off
Support for 5GHZ 802.11a channels where support for DFS is required.
Options are: On, Off, Optimized.
Note: Not supported (always off) in some releases.
DFS Scan Time 120 ms.
ABG radio only. The amount of time the radio will passively scan each DFS
channel to see if it will receive a beacon.
Recommended value is 1.5 times that of the AP's beacon period.
Ad Hoc Channel 1
Use this parameter when the Radio Mode profile parameter is set to Ad Hoc.
Specifies the channel to be used for an Ad Hoc connection to another client
device. If a channel is selected that is not supported by the by the radio, the
default value is used.
Options are:
1 through 14 (the 2.4GHz channels)
36, 40, 44, 48 (the UNII-1 channels)
Aggressive Scan On
When set to On and the current connection to an AP weakens, the radio
aggressively scans for available APs.
Aggressive scanning works with standard scanning (set through Roam
Trigger, Roam Delta and Roam Period). Aggressive scanning should be set
to On unless there is significant co-channel interference due to overlapping
APs on the same channel.
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