H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 377)

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Table 119 Configuration items
Item Description
Scan Mode
Set the scan mode.
• Auto—Legal channels with the scanning mode under country code are
scanned.
• All—All the channels of the radio band are scanned.
Scan Non-802.11h Channel
Some of 802.11h channels, also called radar channels, overlap some
802.11a channels. If the device operates on an overlapping channel, its
service quality may be affected. With this function enabled, the device selects
a working channel from non-802.11h channels belonging to the configured
country code to avoid channel collision.
Selecting the Scan Non-802.11h Channel option enables the function of
scanning non-802.11h channels.
By default, the scan mode is auto, that is, all channels of the country code
being set are scanned.
Scan Type
Set the scan type.
• Active—The active scanning mode requires a client to send a probe
request. This scanning mode enables a client to discover APs more easily.
• Passive—Passive scanning is used by a client when it wants to save battery
power. Typically, VoIP clients adopt the passive scanning mode.
For an AP that has the monitoring function:
• Active—The AP simulates a client to send probe requests during the
scanning process.
• Passive—The AP does not send probe requests during the scanning
process.
If you set active scanning for the AP, it is more likely to discover devices in the
WLAN.
Scan Interval
Set the scan report interval.
• A longer scan interval enables an AP to discover more devices in the
WLAN.
• A shorter scan interval enables an AP to send scanning reports to an AC
more frequently.
If an AP has the monitoring function, the scan report interval will affect whether
the scanning results can be processed in time and the frequency of message
exchanges. Therefore, you need to set the interval properly according to the
actual network conditions.
Configuring calibration
Parameter setting
1. Select Radio > Calibration from the navigation tree.
2. Click the Parameters tab.