Chapter 2. Spanning Tree Protocol

This chapter covers the following subjects:

  • Spanning Tree Protocol (IEEE 802.1d): This section explains the core concepts behind the operation of the original IEEE STP protocols.

  • Rapid STP (IEEE 802.1w): This section focuses on the differences between the earlier 802.1d STP standard and the new 802.1w RSTP standard.

  • STP Configuration and Verification: This section explains how to configure STP on Cisco IOS switches, and how to verify the current STP status on each switch and interface.

  • STP Troubleshooting: This section suggests an approach for how to predict the port role of each STP interface, thereby predicting the topology of the spanning tree.

When LAN designs require multiple switches, most network engineers include ...

Get CCNA ICND2 Official Exam Certification Guide (CCNA Exams 640-816 and 640-802), Second Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial