1-9
Figure 1-1 Network diagram for PoE
Configuration procedure
# Enable PoE on GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, GigabitEthernet 1/0/11, and
GigabitEthernet 1/0/12.
<Sysname> system-view
[Sysname] interface GigabitEthernet 1/0/1
[Sysname-GigabitEthernet1/0/1] poe enable
[Sysname-GigabitEthernet1/0/1] quit
[Sysname] interface GigabitEthernet 1/0/2
[Sysname-GigabitEthernet1/0/2] poe enable
[Sysname-GigabitEthernet1/0/2] quit
[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] quit
# Set the power priority level of GigabitEthernet 1/0/2 to critical.
<Sysname> system-view
[Sysname] interface GigabitEthernet 1/0/2
[Sysname-GigabitEthernet1/0/2] poe priority critical
[Sysname-GigabitEthernet1/0/2] quit
# Set the maximum power of GigabitEthernet 1/0/11 to 9,000 milliwatts.
[Sysname] interface GigabitEthernet 1/0/11
[Sysname-GigabitEthernet1/0/11] poe max-power 9000
[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:
z The guaranteed remaining power of the PSE is lower than the maximum power of the PoE
interface.
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