Configuring Stp And Ieee 802.1S Mst - Cisco 6500 Series Software Configuration Manual

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Configuring STP and IEEE 802.1s MST

This chapter describes how to configure the Spanning Tree Protocol (STP) and the IEEE 802.1s Multiple

Spanning Tree (MST) protocol on Catalyst 6500 series switches.

For complete syntax and usage information for the commands used in this chapter, refer to the

Catalyst 6500 Series Switch Cisco IOS Command Reference publication.

This chapter consists of these sections:

Understanding How STP Works, page 15-2

Understanding How IEEE 802.1w RSTP Works, page 15-13

Understanding How IEEE 802.1s MST Works, page 15-14

Default STP Configuration, page 15-21

STP and MST Configuration Guidelines, page 15-21

Configuring STP, page 15-22

Configuring IEEE 802.1s MST, page 15-34

For information on configuring the PortFast, UplinkFast, and BackboneFast STP enhancements, see

Chapter 16, "Configuring Optional STP Features."

Release 12.1(13)E and later releases support IEEE 802.1s MST and IEEE 802.1w, rapid

reconfiguration of spanning tree.

Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E

C H A P T E R