HP 5820X Switch - Troubleshooting Poe

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Figure 34 Network diagram for PoE
GE1/0/1
GE
1
/
0
/
2
GE1/0/11
GE1/0/
1
2
AP 2
AP 1
PSE
Configuration procedure
# Enable PoE on GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, and GigabitEthernet 1/0/3, and set
their power supply priority to critical.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] poe enable
[Sysname-GigabitEthernet1/0/1] poe priority critical
[Sysname-GigabitEthernet1/0/1] quit
[Sysname] interface gigabitethernet 1/0/2
[Sysname-GigabitEthernet1/0/2] poe enable
[Sysname-GigabitEthernet1/0/2] poe priority critical
[Sysname-GigabitEthernet1/0/2] quit
[Sysname] interface gigabitethernet 1/0/3
[Sysname-GigabitEthernet1/0/3] poe enable
[Sysname-GigabitEthernet1/0/3] poe priority critical
[Sysname-GigabitEthernet1/0/3] quit
# Enable PoE on GigabitEthernet 1/0/11 and GigabitEthernet 1/0/12, and configure the maximum
power of GigabitEthernet 1/0/12 to 9000 milliwatts.
[Sysname] interface gigabitethernet 1/0/11
[Sysname-GigabitEthernet1/0/11] poe enable
[Sysname-GigabitEthernet1/0/11] quit
[Sysname] interface gigabitethernet 1/0/12
[Sysname-GigabitEthernet1/0/12] poe enable
[Sysname-GigabitEthernet1/0/12] poe max-power 9000
When the configuration takes effect, the IP telephones and APs are powered and can work properly.
Troubleshooting PoE
Symptom 1: Unable to set the priority of a PoE interface to critical.
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.