poe power-on delay

Function

The poe power-on delay command sets the PoE power supply delay on an interface.

The undo poe power-on delay command restores the default PoE power supply delay on an interface.

By default, the PoE power supply delay is 0. That is, the PoE power supply is not delayed.

Format

poe power-on delay delay-time

undo poe power-on delay

Parameters

Parameter	Description	Value
delay-time	Specifies the PoE power supply delay.	The value is an integer that ranges from 1 to 10, in seconds.

Views

Interface view, port group view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The maintain current of the used PD is insufficient at the power-on moment, so the PoE switch considers that the PD has been disconnected and powers it off. IEEE standards require that a PD must maintain a current value of more than 10 mA for at least 75 ms in each 325 ms duration. Otherwise, the PoE switch considers that the PD has left and powers off the PD.

To enable the PoE switch to power these non-standard PDs, set the PoE power supply delay on the appropriate interfaces of the switch so that the switch detects the maintain power of the PDs after the specified delay.

Precautions

After the PoE power supply delay is configured on an interface, do not replace the PD connected to this interface within the delay. Otherwise, the new PD cannot work properly.

Example

# Set the PoE power supply delay to 5 seconds on GigabitEthernet0/0/1.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] poe power-on delay 5