Global Parameters

Parameter

Default

Function

 

 

 

 

 

If signal strength is less than this trigger value, the client looks for a different

Roam Trigger

-65 dBm

Access Point with a stronger signal.

 

 

Options are: -50 dBm, -55, -60, -65, -70, -75, -80, -85, -90 dBm or Custom.

 

 

 

 

 

The amount by which a different Access Point signal strength must exceed

Roam Delta

5 dBm

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.

 

 

 

 

 

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

Roam Period

10 sec.

roaming decision is made.

 

 

Options are: 5 sec, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 seconds or

 

 

Custom.

 

 

 

 

 

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.

BG Channel Set

Full

Options are:

Full (all channels)

 

 

 

 

1,6,11 (the most commonly used channels)

 

 

1,7,13 (for ETSI and TELEC radios only)

 

 

Custom.

 

 

 

 

 

Support for 5GHZ 802.11a channels where support for DFS is required.

DFS Channels

Off

Options are: On, Off, Optimized.

 

 

Note: Not supported (always off) in some releases.

 

 

 

 

 

ABG radio only. The amount of time the radio will passively scan each DFS

DFS Scan Time

120 ms.

channel to see if it will receive a beacon.

 

 

Recommended value is 1.5 times that of the AP's beacon period.

 

 

 

 

 

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

Ad Hoc Channel

1

default value is used.

Options are:

 

 

 

 

1 through 14 (the 2.4GHz channels)

 

 

36, 40, 44, 48 (the UNII-1 channels)

 

 

 

 

 

When set to On and the current connection to an AP weakens, the radio

 

 

aggressively scans for available APs.

Aggressive Scan

On

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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