HP Power over Ethernet (PoE/PoE+) Planning and Implementation Guide

12-1

Planning and Implementation for the

HP 3800-PoE+ Switches

Introduction

This chapter discusses the planning process you should follow to successfully

implement PoE and PoE+ using a HP 3800-PoE+ Switch. See “General

Considerations” on page A-1 for an example list of considerations during the

planning phase.

Notes ■ In the stacked environment, the PoE/PoE+ will still be managed at the

member level. This means that power available to one member cannot be

shared with other members. The PoE features will have to be configured

member-by-member.

■ By default, LLDP on each switch is enabled. PoE+ (802.3at) Powered

Devices (PD) that only support 2-event class signature may not be able to

negotiate for additional power when connected to the switch. In such

cases, the LLDP option on the switch port must be disabled to enable the

2-event classification so that such PoE+ PDs may be detected.

For information on CLI commands to configure a HP 3800 Switch stack, and

to disable LLDP, see the Management and Configuration Guide for your

switch. Go to www.hp.com/networking/support. Auto search on your switch

model, for example “3800”. Click on your switch model in the displayed list

and click on Display selected. Then click on the links that have “Manuals” in

them to get to the web page that displays the available manuals.