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CHAPTER
11-1
Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
11
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 11-1
• Power Management Modes, page 11-3
• Configuring Power Consumption for Powered Devices on an Interface, page 11-5
• Displaying the Operational Status for an Interface, page 11-6
• Displaying all PoE Detection and Removal Events, page 11-7
• Displaying the PoE Consumed by a Module, page 11-8
• PoE Policing and Monitoring, page 11-12
• Enhanced Power PoE Support on the E-Series Chassis, page 11-15
Note For complete syntax and usage information for the switch commands used in this chapter, look at the
Cisco Catalyst 4500 Series Switch Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/hw/switches/ps4324/index.html
If the command is not found in the Catalyst 4500 Command Reference, it is located in the larger Cisco
IOS library. Refer to the Cisco IOS Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/ps6350/index.html
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