User's Manual

84
9200 Mobile Compute
r
Reference Manual
Full All channels
1, 6, 11 The most commonly used 2.4 GHz channels
1, 7, 13 For ETSI and TELEC radios only
Custom Indicates the system registry has been
edited to include a value other than those
available in the drop-down value
 Default: Full
DFS Channels Indicates whether to support 5 GHz (802.11a) channels where dynamic
frequency selection (DFS) is required.
 Value: On, Off
 Default: Off
DFS Scan Time Enables determining the dwell (listen) time when passively scanning on a
DFS channel.
 Valid range of 20-500 ms configurable
 Default: 120
 When the DFS Scan Time is changed to a value lower than default, it is
recommended that the beacon period in the WLAN infrastructure is
changed as well. Ideally, the dwell time should be 1.5 times than that
of the beacon period.
Ad Hoc Channel The channel to be used for an ad hoc connection if the active profile has a
Radio Mode value of “Ad Hoc”.
 Value:
1~14 One of the 2.4 GHz channels
36, 40, 44, 48 UNII-1 channels
 Default: 1
 If a channel that is not supported is selected, then SCU will
automatically apply the default channel setting (1).
Aggressive Scan Aggressive scanning complements and works in conjunction with the
standard scanning that is configured through the Roam Trigger, Roam
Delta, and Roam Period settings. It is recommended that aggressive
scanning is enabled unless there is significant co-channel interference
because of overlapping coverage from APs that are on the same channel.
 Value: On, Off
 Default: On
CCX features Whether to allow the use of Cisco information element (IE) and CCX
version number to authorize support for CCX features.
 Value: Full, Off
Full mode uses Cisco IE and CCX version number and enables support for
all CCX features. Off mode disables all support for Cisco IE and CCX
version number.
 Default: N/A
 If the radio fails to connect to an 802.11n wireless network, set CCX
features as “Off” and try again.
WMM Whether to allow the use of Wi-Fi Multimedia (WMM) Extensions or not.
 Value: On, Off
 Default: Off