urgent-handover punishment
Function
The urgent-handover punishment command sets penalty parameters for an emergency handover.
The undo urgent-handover punishment command restores penalty parameters for an emergency handover to default values.
By default, the penalty period for an emergency handover is 2,000 ms and the penalty level is 10 dB.
Parameters
Parameter |
Description |
Value |
|---|---|---|
period time |
Specifies the penalty period for an emergency handover. |
The value is an integer that ranges from 0 to 10,000, in milliseconds. The default value is 2,000. |
rssi value |
Specifies the penalty level for an emergency handover. |
The value is an integer that ranges from 0 to 50, in dB. The default value is 10. |
Usage Guidelines
An emergency handover may occur when the radio environment is unstable or a trackside AP fails. To prevent back and forth handovers between trackside APs (ping-pong handovers), you can configure penalty parameters for an emergency handover. The penalty parameters include the penalty period and penalty level. When an emergency handover occurs, the vehicle-mounted AP disconnects the active link from a trackside AP. If the RSSI of the trackside AP falls within the RSSI range of the candidate area before the penalty period expires, the vehicle-mounted AP deducts the penalty level from the RSSI of the trackside AP before making handover calculations based on the handover algorithm.
Example
# Set the penalty period for an emergency handover to 1,000 ms and penalty level to 20 dB in the Mesh handover profile huawei.
<Huawei> system-view [Huawei] wlan [Huawei-wlan-view] mesh-handover-profile name huawei [Huawei-wlan-mesh-handover-huawei] urgent-handover punishment period 1000 rssi 20
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