Troubleshooting Poe - HP 4800G Series Configuration Manual

[Sysname-GigabitEthernet1/0/11] quit
After the configuration takes effect, the IP phone and AR device are powered and can work normally.

Troubleshooting PoE

Symptom 1: Setting of the priority of a PoE interface to critical fails.
Analysis:
The guaranteed remaining power of the PSE is lower than the maximum power of the PoE
interface.
The priority of the PoE interface is already set.
Solution:
In the first case, you can solve the problem by increasing the maximum PSE power, or by
reducing the maximum power of the PoE interface when the guaranteed remaining power of the
PSE cannot be modified.
In the second case, you should first remove the priority already configured.
Symptom 2: Applying a PoE configuration file to a PoE interface fails.
Analysis:
Some configurations in the PoE configuration file are already configured.
Some configurations in the PoE configuration file do not meet the configuration requirements of
the PoE interface.
Another PoE configuration file is already applied to the PoE interface.
Solution:
In the first case, you can solve the problem by removing the original configurations of those
configurations.
In the second case, you need to modify some configurations in the PoE configuration file.
In the third case, you need to remove the application of the undesired PoE configuration file to the
PoE interface.
Symptom 3: Provided that parameters are valid, configuring an AC input under-voltage threshold fails.
Analysis:
The AC input under-voltage threshold is greater than or equal to the AC input over-voltage threshold.
Solution:
You can drop the AC input under-voltage threshold below the AC input over-voltage threshold.
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