Power Over Ethernet (PoE/PoE+) Operation

Planning and Implementing a PoE Configuration

For example, if the 5406zl has two 24-port PoE modules (J8702A) installed, and all ports are using 15.4 watts, then the total wattage used is 739.2 watts (48 x 15.4). To supply the necessary PoE wattage a J8713A power supply is installed in one of the power supply slots.

To gain redundant power, a second J8713A must be installed in the second power supply slot. If the first power supply fails, then the second power supply can supply all necessary power.

See the HP ProCurve PoE Planning and Implementation Guide for detailed information about the PoE/PoE+ power requirements for your switch.

Assigning PoE Ports to VLANs

If your network includes VLANs, you may want to assign various PoE-config­ ured ports to specific VLANs. For example, if you are using PoE telephones in your network, you may want to assign ports used for telephone access to a VLAN reserved for telephone traffic.

Applying Security Features to PoE Configurations

You can utilize security features built into the switch to control device or user access to the network through PoE ports in the same way as non-PoE ports.

MAC Address Security: Using Port Security, you can configure each switch port with a unique list of MAC addresses for devices that are authorized to access the network through that port. For more infor­ mation, refer to the chapter titled “Configuring and Monitoring Port Security” in the Access Security Guide for your switch.

Assigning Priority Policies to PoE Traffic

You can use the configurable QoS (Quality of Service) features in the switch to create prioritization policies for traffic moving through PoE ports. Table 11­ 3 lists the available classifiers and their order of precedence.

11-26