4.11 PoE Configuration
The function is applied to the PoE Switch model. If your switch is not a PoE switch, you will
not see these configuration commands.
This section allows you to inspect and configure the current port settings.
Power Over Ethernet Configuration
Reserved Power determined by
There are three modes for configuring how the ports/PDs may reserve power.
1.
Allocation mode:
In this mode, you allocate the amount of power that each port may reserve. The
allocated/reserved power for each port/PD is specified in the Maximum Power fields.
2.
Class mode:
In this mode, each port automatically determines how much power to reserve
according to the class the connected PD belongs to, and reserves the power accordingly. Four different
port classes exist, and one for 4, 7, 15.4 or 30 watts.
In this mode, the Maximum Power fields have no effect.
3.
LLDP-MED mode:
This mode is similar to the Class mode except that each port determines the
amount of power it reserves by exchanging PoE information using the LLDP protocol and reserves
power accordingly. If no LLDP information is available for a port, the port will reserve power using the
class mode.
In this mode, the Maximum Power fields have no effect.
For all modes: If a port uses more power than the reserved power for the port, the port is shut down.
