Huawei AR150 Series Configuration Manual page 147

Huawei AR150&200&1200&2200&3200 Series Enterprise
Routers
Configuration Guide - Device Management
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Issue 05 (2014-01-16)
poe max-power max-power slot slot-id
The maximum output power of the device is configured.
By default, the maximum output power of the device depends on the power of the PoE
power supply provided by the system.
Configure the maximum output power for an interface.
The PD power negotiation result may be different from the power required by some non-
standard PDs or PDs that cannot be classified. You can configure the maximum output
power of an interface to prevent power overload for PDs and save energy.
1. Run:
system-view
The system view is displayed.
2. Run:
interface interface-type interface-number
The interface view is displayed.
3. Run:
poe power port-max-power
The maximum output power is configured for the interface.
By default, the maximum power of each interface is 37000 mW.
NOTE
The maximum output power of a card is not equal to the maximum output power of an interface
multiplied by the number of interfaces on the card because not all interfaces on the card can provide
the power of 37 W at the same time.
Configure the reserved PoE power percentage.
The power of a PD keeps changing when the PD is running. Sometimes, the power
consumption increases sharply and the available power of the device cannot support the
burst increase of power. The device may not detect this problem and does not cut off PDs
on low-priority interfaces. As a result, all PDs are powered off because of overload. You
can configure proper reserved power to solve the problem. When the power consumption
increases sharply, the reserved power can support the system running. Then the device can
immediately power off PDs on low-priority interfaces to ensure stable running of other
PDs.
1. Run:
system-view
The system view is displayed.
2. Run:
poe power-reserved power-reserved
The percentage of the reserved PoE power to the maximum output power is
configured.
By default, 20% of the total power is reserved.
Configure the alarm threshold of power consumption percentage.
When the power consumption increases sharply within a range, the reserved power can
satisfy the power requirement. However, if the power consumption exceeds the range, some
PDs are powered off. To solve this problem, configure the alarm threshold for the power
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6 PoE Configuration
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