27.1 Overview of spanning tree

<Structure of this section>

• 27.1.1 Overview

• 27.1.2 Type of spanning tree

• 27.1.3 Spanning tree and rapid spanning tree

• 27.1.4 Components of a spanning-tree topology

• 27.1.5 Topology design of spanning tree

• 27.1.6 The STP compatibility mode

• 27.1.7 Notes on spanning tree protocols