3Com 4200G 12-Port - Enabling the Poe Feature on a Port; Setting the Maximum Output Power on a Port; Setting Poe Management Mode and Poe Priority of a Port

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Enabling the PoE Feature on a Port
Follow these steps to enable the PoE feature on a port:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter Ethernet port view
interface interface-type
interface-number
—
Enable the PoE feature on a
port
poe enable
Required
z By default, the PoE function on a port is enabled by the default configuration file (config.def) when
the device is delivered.
z 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-capable Switch
4200G 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 100 mW.
Follow these steps to set the maximum output power on a port:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter Ethernet port view
interface interface-type
interface-number
—
Set the maximum output power
on the port
poe max-power max-power
Required
15,400 mW by default.
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. Switch
4200G supports two PoE management modes, auto and manual. The auto mode is adopted by default.
z 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