Setting Poe Management Mode And Poe Priority Of A Port - Huawei Quidway S3900 Series Operation Manual

Operation Manual – PoE & PoE Profile
Quidway S3900 Series Ethernet Switches-Release 1510
Set the maximum output
power on the port
1.5 Setting PoE Management Mode and PoE Priority of a
Port
The power supply management mode and the port priority settings will work
together to control the power feeding of the switch when the switch is reaching its
full power load.
When AC power input is adopted for the switch, the maximum total power that can
be supplied by the PoE-enabled S3900 switch is 300 W. By default, when the
switch reaches its full load in supplying power, it will manage the power supply to
its ports in auto mode.
auto mode: When the switch is reaching 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
is reaching 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 low 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
logical port number.
manual mode: When the switch is reaching its full load in supplying power, it
will neither take the priority into account nor make change to its original power
supply status. For example: Port A has the priority critical. When the switch is
reaching 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.
Table 1-4 Set the PoE management mode and PoE priority of a port
Enter system view
Set the PoE management
mode for the switch
Operation
poe max-power max-power
Operation
system-view
poe power-management
{ auto| manual }
Chapter 1 PoE Configuration
Command
Command
1-4
Description
Required
By default, the
maximum output
power on a port
is 15400 mW
Description
—
Required
By default, the PoE
management mode
is auto