poe power-management
Function
The poe power-management command sets the power management mode of the device.
The undo poe power-management command restores the default power management mode of the device.
By default, the device uses the automatic power management mode.
Among PoE models, the S5720-16X-PWH-LI-AC, S5720-28X-PWH-LI-AC, S5720I-SI, S5735-L, S5735S-L, S5735S-L-M, S5735-S, S5735-S-I, S5730-HI, S5730-SI, S5730S-EI, S5731-H, S5731-S, S5731S-S, S5732-H, and S6720-SI do not support this command.
Format
poe power-management { auto | manual } [ slot slot-id ]
undo poe power-management { auto | manual } slot slot-id
undo poe power-management [ slot slot-id ]
Parameters
Parameter |
Description |
Value |
|---|---|---|
auto |
Specifies the power management mode to automatic mode. |
- |
manual |
Specifies the power management mode to manual mode. |
- |
slot slot-id |
Specifies the slot ID. |
The value range depends on the device configuration. |
Usage Guidelines
Usage Scenarios
In automatic power management mode, the device first provides power for the interfaces with higher priority and powers off the interfaces of lower priority when the power is insufficient. When the power is sufficient, all interfaces connected to PDs are powered on. To stop providing power for some interfaces, run the undo poe enable command to disable the PoE function on the interfaces. If the PoE function is enabled and disabled frequently, faults may occur on the interfaces. To prevent the faults, you can set the power management mode to manual mode. In manual mode, the power-on and power-off of an interface are controlled manually and not affected by the interface power priority.
Precautions
If all the interfaces are of the same priority, the power supply priority of the interface with a smaller interface number is higher in automatic mode.
You can view the power management mode by running the display poe information command.
Follow-up Procedures
After setting the power management mode to manual, you need to run the poe { power-off | power-on } interface command to manually power on or off the PDs connected to interfaces of the device. If the device restarts after being powered off, you need to run the power-on command on the interfaces again to power on the PDs connected to the interfaces. If the device restarts without being powered off, you do not need to run the power-on command on the interfaces again to power on the PDs.