Web: Example for Configuring PoE

Networking Requirements

As shown in Figure 1, a FW is deployed at the network border as an enterprise gateway. The IP phone and AP connected to the FW do not have power supply. The customer wants the FW to supply power to the terminals to reduce costs. AP 1 serves the office network of a bank, so it requires the highest power supply priority to avoid power outage. IP phone 1 has heavy traffic and therefore requires a high power supply priority. Its power supply should not be cut off unless in special circumstances. The power of IP phone 1 is 15 W, and the power of AP 1 is 20 W.

Figure 1 Networking diagram of the PoE application

Configuration Roadmap

A PoE-supported FW is required and PoE power supply must be installed. The PoE configuration roadmap is as follows:

1. Set the automatic power supply management mode, so that the FW can flexibly manage the connected PDs.
2. Set power supply priorities for GigabitEthernet 0/0/0 and GigabitEthernet 0/0/2 to ensure power supply for AP 1 and IP phone 1.
3. Set the maximum output power of GigabitEthernet 0/0/0, GigabitEthernet 0/0/1, and GigabitEthernet 0/0/2 to limit the interface power and protect the device from overload.