H3C S9500 Series Operation Manual page 1466

Operation Manual – PoE
H3C S9500 Series Routing Switches
Caution:
When the actual power exceeds the set value, the port with a lower priority stops
supplying power so that the port with a higher priority can supply power.
To ensure power supply to the "last PD" and provide redundant power to prevent a
transient rise of board power consumption, by default, a buffer of 19 W is reserved
on the chip. For example, if you set the maximum PoE power for the board to 400 W,
a power of 381 W only can be guaranteed to respond quickly for stable power
supply.
Currently, you can set a PoE power ranging from 37 W to 740 W on the PoE boards
of the S9500 series routing switches. By default, the power for a PoE board is 740
W.
1.2 PoE Configuration
The S9500 series can automatically detect any connected device that needs remote
power supply and feeds power to this device.
Depending on your actual network requirement, you can set the maximum PoE
power totally supplied by the switch through the command line.
You can set the maximum PoE power supplied by a card through the command
line.
You can also control the PoE on each PoE port independently through the
command line. The control includes: enabling/disabling the PoE feature, and
setting the maximum PoE power, the PoE mode and the PoE priority on the port.
1.2.1 PoE Configuration
Follow these steps to configure PoE on the S9500 series switches:
Enter system view
Configure the maximum
power of switch
Enable PoE on a board
Enable the board to detect
the compatibility of the PD
connected to it
To do...
system-view
poe power max-value
max-value
poe enable slot slot-num
poe legacy enable slot
slot-num
Use the command...
1-3
Chapter 1 PoE Configuration
Remarks
—
Optional
4,500 W by default
Required
Disabled by default
Optional
By default, the board does
not detect the
compatibility of the PD
connected to it.