Cisco 7604 User Manual

CHAPTER
21-1
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
21
Configuring Optional STP Features
This chapter describes how to configure optional STP features.
Note • For complete syntax and usage information for the commands used in this chapter, refer to the Cisco
IOS Master Command List, Release 12.2SX at this URL:
http://www.cisco.com/en/US/docs/ios/mcl/122sxmcl/12_2sx_mcl_book.html
• For information on configuring the spanning tree protocol (STP), see Chapter 20, “Configuring STP
and Prestandard IEEE 802.1s MST.”
This chapter consists of these sections:
• Understanding How PortFast Works, page 21-2
• Understanding How BPDU Guard Works, page 21-2
• Understanding How PortFast BPDU Filtering Works, page 21-2
• Understanding How UplinkFast Works, page 21-3
• Understanding How BackboneFast Works, page 21-4
• Understanding How EtherChannel Guard Works, page 21-6
• Understanding How Root Guard Works, page 21-7
• Understanding How Loop Guard Works, page 21-7
• Enabling PortFast, page 21-8
• Enabling PortFast BPDU Filtering, page 21-10
• Enabling BPDU Guard, page 21-12
• Enabling UplinkFast, page 21-12
• Enabling BackboneFast, page 21-13
• Enabling EtherChannel Guard, page 21-14
• Enabling Root Guard, page 21-14
• Enabling Loop Guard, page 21-15

Cisco 7604 Specifications

General

Brand	Cisco
Model	7604
Category	Network Router
Language	English