11-5
Power Over Ethernet (PoE) Operation
Introduction to PoE
Overview of Operation
A 24-port Gig-T PoE module (J8702A)
or a 20-port Gig-T plus 4 mini-GBIC PoE
module (J8705A) is a PSE device that receives PoE power from either a
ProCurve J8712A Power Supply or a ProCurve J8713A Power Supply and
distributes this power to the PDs connected to the PoE module’s Gig-T ports.
N o t e
ProCurve recommends using like power supplies in order to guarantee
remaining power if one power supply should fail. For example, use two J8712A
power supplies or two J8713A power supplies in your ProCurve switch.
N o t e
You can connect either a PoE device (PD) or a non-PoE device to a port
configured for PoE operation on a J8702A PoE module.
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 to use for provisioning PoE power
in the event that the PoE resources become oversubscribed.
■
Enable or disable PoE operation on individual ports. (In the default
configuration, each PoE module installed in the switch enables PoE
power on all Gig-T ports in the module, subject to PoE priority if the
PoE resources 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. The
following two manuals provide further information:
■
For information on installing a ProCurve Switch PoE Module (J8702A
or J8705A), refer to the
ProCurve Switch Modules Installation Guide
provided with the module.
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