Configure PoE Power

Configuration Condition

Before configuring the PoE power, ensure that:

• The global PoE function is enabled.
• The interface PoE function is enabled.

Configure Total Power of PoE

By configuring the total power of PoE, you can limit maximum output power of the device. If the total power required by all PDs exceeds the configured total power, power supply to some PDs is stopped according to the current power supply priority mode.

Table 12-6 Configuring the Total Power of PoE

Configure the Protection Power of PoE

When a PD is normally powered, the consumed power fluctuates within a certain range. To prevent PD power-off owing to power fluctuation, part of power is reserved from the total power of the device to act as the protection power. When the consumed power of the PD increases, the increased part is allocated from the protection power.

Protection power may also be allocated as normal power supply. When the available power is insufficient for providing power to newly connected PDs, if the available power of the device and the protection power is equal to or larger than the maximum output power of the interface of the new PD, sufficient power is allocated from the protection power to the new PD.

Table 12-7 Configuring the Protection Power of PoE

Configure the Maximum Output Power Limit Mode of an Interface

The maximum output power of an interface is determined by the PD classification type. You can also customize the maximum output power of an interface.

Table 12-8 Configuring the Maximum Output Power Limit Mode of an Interface

Configure the Maximum Output Power of an Interface

You can limit the maximum power that a PSE can supply to a PD through an interface. If the power required by a PD exceeds the maximum output power of the interface, the PSE stops power supply to it.

Table 12-9 Configuring the Maximum Output Power of an Interface