Setting The Maximum Output Power On A Port; Setting Poe Management Mode And Poe Priority Of A Port - H3C S5100-SI Operation Manual

By default, the PoE function on a port is enabled by the default configuration file when the device is
delivered.
If you delete the default configuration file without specifying another one, the PoE function on a port
will be disabled after you restart the device.

Setting the Maximum Output Power on a Port

The maximum power that can be supplied by each Ethernet electrical port of a PoE-enabled
S5100-SI/EI switch to its PD is 15,400 mW. In practice, you can set the maximum power on a port
depending on the actual power of the PD, in the range of 1,000 to 15,400 mW and in the granularity of
1 mW.
Table 1-5 Set the maximum output power on a port
Operation
Enter system view
Enter Ethernet port view
Set the maximum output power
on the port

Setting PoE Management Mode and PoE Priority of a Port

When a switch is close to its full load in supplying power, you can adjust the power supply of the switch
through the cooperation of the PoE management mode and the port PoE priority settings. S5100-SI/EI
series switches support two PoE management modes, auto and manual. The auto mode is adopted by
default.
auto: When the switch is close to its full load in supplying power, it will first supply power to the PDs
that are connected to the ports with critical priority, and then supply power to the PDs that are
connected to the ports with high priority. For example: Port A has the priority of critical. When the
switch PoE is close to its full load and a new PD is now added to port A, the switch will power down
the PD connected to the port with the lowest priority and turn to supply power to this new PD. If
more than one port has the same lowest priority, the switch will power down the PD connected to
the port with larger port number.
manual: When the switch is close to its full load in supplying power, it will not make change to its
original power supply status based on its priority when a new PD is added. For example: Port A has
the priority critical. When the switch PoE is close to its full load and a new PD is now added to port
A, the switch just gives a prompt that a new PD is added and will not supply power to this new PD.
After the PoE feature is enabled on the port, perform the following configuration to set the PoE
management mode and PoE priority of a port.
Command
system-view
interface interface-type
interface-number
poe max-power max-power
1-4
Description
—
—
Required
15,400 mW by default.