Cisco Catalyst 4500 Series, Software Configuration Manual

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C H A P T E R
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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
15
Configuring Power over Ethernet
Note
Before reading this chapter, read the “Preparing for Installation” section of the
Catalyst 4500 Series Installation Guide . You must ensure that your installation site has enough power
and cooling to accommodate the additional electrical load and heat introduced by PoE.
This chapter describes how to configure Power over Ethernet (PoE) on the Catalyst 4500 series switch.
This chapter contains the following sections:
•
About Power over Ethernet, page 15-1
• Power Management Modes, page 15-2
•
Configuring Power Consumption for Powered Devices on an Interface, page 15-5
• Displaying the Operational Status for an Interface, page 15-6
•
Displaying all PoE Detection and Removal Events, page 15-7
• Displaying the PoE Consumed by a Module, page 15-8
•
PoE Policing and Monitoring, page 15-12
• Enhanced Power PoE Support on the E-Series Chassis, page 15-15
Note For complete syntax and usage information for the switch commands used in this chapter, see the
Cisco IOS Command Reference Guides for the Catalyst 4500 Series Switch .
If a command is not in the Cisco Catalyst 4500 Series Switch Command Reference , you can locate it in
the Cisco IOS Master Command List, All Releases .
About Power over Ethernet
The Catalyst 4500 series switch provides Power over Ethernet (PoE) support for both Cisco Prestandard
PoE and the IEEE 802.3af standard (ratified in 2003). PoE is supported by all Catalyst 4500 series
chassis and requires a PoE module and power supply. The amount of PoE power available depends on
the PoE capabilities of individual power supplies. Support for PoE enables the system to power inline
devices, such as IP phones, IP video phones, and wireless access points over standard copper cabling
(Category 5, 5e, or 6 cabling).