Vidipac VSW7242, Руководство пользователя

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4.11 PoE Configuration
The function is applied to the PoE Switch model. If your switch is not PoE switch, you will not
see this configuration commands.
This section allows the user 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 the user allocates the amount of power that each port may reserve.
The allocated/reserved power for each port/PDs 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 expect that each port determine the
amount 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.
Power Management Mode
There are 2 modes for configuring when to shut down the ports:
1. Actual Consumption: In this mode the ports are shut down when the actual power consumption for
all ports exceeds the amount of power that the power supply can deliver or if the actual power
consumption for a given port exceeds the reserved power for that port. The ports are shut down