scan-interval

Function

The scan-interval command sets an air scan interval.

The undo scan-interval command restores the default air scan profile.

By default, the air scan interval is 10000 ms.

Format

scan-interval scan-time

undo scan-interval

Parameters

Parameter	Description	Value
scan-time	Specifies an air scan interval.	The value is an integer that ranges from 300 to 600000, in milliseconds.

Views

Air scan profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After an air scan interval is specified using the scan-interval command, APs scan channels at the specified intervals.

In spectrum analysis scenarios, to obtain enough sampling data, it is recommended that the scanning interval be set no more than 10 seconds and the scanning duration to 100 ms.

Precautions

The air scan interval also applies to radio calibration, smart roaming, spectrum analysis, WLAN location, and WIDS functions.

If the customer has high requirements on real-time data analysis, configure a small air scan interval using the scan-interval command to improve the scan frequency. However, a higher scan frequency indicates much larger impact on the services.

Ensure that the air scan interval meets the following condition: scan-interval ≥ beacon-interval + 100 ms

In vehicle-ground communication scenarios, the air scan interval ranges from 300 ms to 1000 ms.

Example

# Set the air scan interval to 3000 ms for APs.

<HUAWEI> system-view
[HUAWEI] wlan
[HUAWEI-wlan-view] air-scan-profile name huawei
[HUAWEI-wlan-air-scan-prof-huawei] scan-interval 3000