Protocol Specification; Poe Configuration Task List - H3C S5820X Series Configuration Manual

Device with a single PSE: Only one PSE is available on the device, so the whole device is
considered as a PSE.
Device with multiple PSEs: For a device with multiple PSEs, an interface board with the
PoE power supply capability is a PSE. The system uses PSE IDs to identify different PSEs.
To display the mapping between a PSE ID and the slot number of an interface board, use
the display poe device command .
A PSE can examine the Ethernet cables connected to PoE interfaces, search for PDs, classify
them, and manage the power. When detecting that a PD is unplugged, the PSE stops supplying
power to the PD.
For an S5820X&S5800 series Ethernet switch, its PSE ID is its member ID multiplies 3 and then
plus 1. For example, if the member ID of the device is 3, the PSE ID of the device is 3 × 3 + 1 =
10.
3) PI: An Ethernet interface with the PoE capability is called a PoE interface. Currently, a PoE
interface can be an FE or GE interface.
4) PD: A device that is powered by the PSE, including IP phones, access points (APs),
chargers of portable devices, POS, and web cameras.
A PD that is being powered by the PSE can be connected to another power supply unit for
redundancy power backup.
Figure 5-1 PoE system diagram

Protocol Specification

The protocol specification related to PoE is IEEE 802.3af.

PoE Configuration Task List

You can configure a PoE interface in either of the following two ways:
At the command line interface (CLI).
Through configuring the PoE profile and applying the PoE profile to the PoE interface.
When configuring a single PoE interface, you can configure it at the CLI; when you configure
PoE interfaces in batches, you can use the PoE profile. For a PoE configuration parameter of a
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