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Fat AP and Cloud AP V200R010C00 Command Reference

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damping time

damping time


The damping time command sets the VLAN damping time on a VLANIF interface, that is, the delay before reporting a VLAN Down event to the VLANIF interface.

The undo damping time command restores the default dumping time.

The default damping time on a VLANIF interface is 0 seconds. That is, the VLANIF interface is notified immediately after the VLAN becomes Down.


damping time delay-time

undo damping time






Specifies the delay before reporting the VLAN Down event to a VLANIF interface.

The value ranges from 0 to 20, in seconds. The default value is 0.


VLANIF interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Software upgrade or active/standby switchover on the wireless access point may cause frequent status changes on VLANIF interfaces. To prevent network flapping, run the damping time command on VLANIF interfaces to configure the VLAN damping function.

When all interfaces in a VLAN become Down, the wireless access point waits for a period specified by delay-time and then reports the VLAN Down event to the VLANIF interface.


If any interface in the VLAN becomes Up within the delay time, the VLANIF interface remains Up.

You can use the display interface vlanif command to view the VLAN damping time.

If you run the damping time command multiple times in the same VLANIF interface view, only the latest configuration takes effect.


# Set the VLAN damping time on VLANIF 10 to 10 seconds.

<Huawei> system-view
[Huawei] vlan 10
[Huawei-vlan10] quit
[Huawei] interface vlanif 10
[Huawei-Vlanif10] damping time 10
Updated: 2019-11-21

Document ID: EDOC1100064352

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