Overview Of Operation - ProCurve 6400cl Management And Configuration Manual

Power Over Ethernet (PoE) Operation for the Series 5300xl Switches
Introduction
Note
11-4

Overview of Operation

A J8161A xl PoE module is a PSE device that receives PoE power from an
external EPS device and distributes this power to the PDs connected to the
xl PoE module's RJ-45 ports. The xl PoE module receives either 204 watts or
408 watts from the EPS, depending on whether the EPS is supporting one or
two PSE devices.
You can connect either a PoE device (PD) or a non-PoE device to a port
configured for PoE operation on a J8161A xl PoE module.
Regarding Cat-5 cabling for PoE, the 802.3af standard allows either the spare
pin/wire pairs or the data pin/wire pairs for PoE power transmission. A PoE
module installed in a series 5300xl device supplies PoE power over the data
pin/wire pairs. For more on this topic, refer to the PoE Planning and Imple­
mentation Guide (p/n 5990-6045, Nov. 2003 or later) available on the ProCurve
Networking web site. (See "Getting Documentation From the Web" on page 1­
6.)
Using the commands described in this chapter, you can:
Configure a non-default power threshold for SNMP and Event Log
■
reporting of PoE consumption on either all PoE ports on the switch
or on all PoE ports in one or more PoE modules.
Specify the port priority you want each xl PoE module to use for
■
provisioning PoE power in the event that a given module's PoE
resources become oversubscribed.
■ Enable or disable PoE operation on individual ports. (In the default
configuration, and with software release E.08.20 or greater installed,
each xl PoE module installed in the switch enables PoE power on all
10/100-TX ports in the module, subject to PoE priority if the PoE
resources on a given PoE xl module are oversubscribed.)
■ Monitor PoE status and performance per module.
Related Publications
This chapter introduces general PoE operation, PoE configuration and mon­
itoring commands, and Event Log messages related to PoE operation on a
ProCurve Switch Series 5300xl device with one or more PoE modules installed
and supported by the necessary external power supplies. The following two
manuals provide further information: