How Can I Determine Whether a Device Supports PoE?

Run the display device [ slot slot-id ] command to view information about the device.

Whether switches support PoE depends on the hardware. Non-PoE switches cannot be changed to PoE switches through software upgrades. A switch that meets any of the following conditions is a PoE switch:

• The device name contains PWR or PWH.
• The switch is released in V200R013C02 or later versions and provides new downlink interface types UM, P or U.

<HUAWEI> display device
S5720-28X-SI-AC's Device status:            //Does not support PoE.
Slot Sub  Type                Online    Power      Register     Status   Role
-------------------------------------------------------------------------------
0    -    S5720-28X-SI        Present   PowerOn    Registered   Normal   Master   

<HUAWEI> display device
S5720-28X-PWR-SI-AC's Device status:       //Support PoE.
Slot Sub  Type                Online    Power      Register     Status   Role
-------------------------------------------------------------------------------
0    -    S5720-28X-PWR-SI    Present   PowerOn    Registered   Normal   Master