Spanning Tree Protocols

Abstract

Note • For complete syntax and usage information for the commands used in this chapter, see these publications: http://www.cisco.com/en/US/products/ps11845/prod_command_reference_list.html • Cisco IOS Release 15.0SY supports only Ethernet interfaces. Cisco IOS Release 15.0SY does not support any WAN features or commands. • This chapter describes the Spanning Tree Protocol (STP) and Multiple Spanning Tree (MST) protocol. For information on configuring the PortFast, UplinkFast, and BackboneFast STP enhancements, see Chapter 30, “Optional STP Features.”