Cisco 4500M User Manual

CHAPTER
15-1
Software Configuration Guide—Release 12.2(25)EW
OL-6696-01
15
Configuring STP Features
This chapter describes the Spanning Tree Protocol (STP) features supported on the Catalyst 4500 series
switches. It also provides guidelines, procedures, and configuration examples.
This chapter includes the following major sections:
• Overview of Root Guard, page 15-2
• Overview of Loop Guard, page 15-2
• Overview of PortFast, page 15-3
• Overview of BPDU Guard, page 15-4
• Overview of PortFast BPDU Filtering, page 15-4
• Overview of UplinkFast, page 15-5
• Overview of BackboneFast, page 15-6
• Enabling Root Guard, page 15-8
• Enabling Loop Guard, page 15-9
• Enabling PortFast, page 15-11
• Enabling BPDU Guard, page 15-12
• Enabling PortFast BPDU Filtering, page 15-12
• Enabling UplinkFast, page 15-14
• Enabling BackboneFast, page 15-15
Note For information on configuring STP, see Chapter 14, “Understanding and Configuring STP.”
Note For complete syntax and usage information for the switch commands used in this chapter, refer to the
Catalyst 4500 Series Switch Cisco IOS Command Reference and related publications at
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/index.htm.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English