Cisco IE 3000 Software Configuration Manual page 373

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Configuring Optional Spanning-Tree Features

This chapter describes how to configure optional spanning-tree features on the IE 3000 switch. You can

configure all of these features when your switch is running the per-VLAN spanning-tree plus (PVST+).

You can configure only the noted features when your switch is running the Multiple Spanning Tree

Protocol (MSTP) or the rapid per-VLAN spanning-tree plus (rapid-PVST+) protocol.

For information on configuring the PVST+ and rapid PVST+, see

information about the Multiple Spanning Tree Protocol (MSTP) and how to map multiple VLANs to the

same spanning-tree instance, see

For complete syntax and usage information for the commands used in this chapter, see the command

reference for this release.

This chapter consists of these sections:

Understanding Optional Spanning-Tree Features

These sections contain this conceptual information:

Understanding Optional Spanning-Tree Features, page 18-1

Configuring Optional Spanning-Tree Features, page 18-9

Displaying the Spanning-Tree Status, page 18-16

Understanding Port Fast, page 18-2

Understanding BPDU Guard, page 18-2

Understanding BPDU Filtering, page 18-3

Understanding UplinkFast, page 18-3

Understanding BackboneFast, page 18-5

Understanding EtherChannel Guard, page 18-7

Understanding Root Guard, page 18-8

Understanding Loop Guard, page 18-9

C H A P T E R

Chapter 17, "Configuring MSTP."

Cisco IE 3000 Switch Software Configuration Guide

Chapter 16, "Configuring STP."

Chapters

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