Section V: Spanning Tree Protocols 269
Chapter 25
Spanning Tr ee and Rapid Spanning T ree
Protocols
This chapter provides background information on the Spanning Tree
Protocol (STP) and Rapid Spanning Tree Protocol (RSTP). The sections in
this chapter include:
“Supported Platforms” on page 270
“Overview” on page 271
“Bridge Priority and the Root Bridge” on page 272
“Forwarding Delay and Topology Changes” on page276
“Mixed STP and RSTP Networks” on page 279
“Spanning Tree and VLANs” on page280
“RSTP BPDU Guard” on page 281
“RSTP Loop Guard” on page 283
Note
For detailed information on the Spanning Tree Protocol, refer to
IEEE Std 802.1D. For detailed information on the Rapid Spanning
Tree Protocol, refer to IEEE Std 802.1w.