Chapter 7. Spanning Tree Protocol (STP)

What You Will Learn

On completing this chapter, you will be able to:

  • Describe the function of the Spanning Tree Protocol (STP)

  • List the five states of the STP

  • Draw a spanning-tree topology

  • Describe root bridges, root ports, and designated ports

Recall that in the networking world, a protocol is a standard set of rules and formats for data transmission between computers, similar to the rules of grammar in the English language. If two people put commas and periods in different places and use them for different purposes, for example, communication between the two would be difficult, if not impossible. In this same way, communication is impossible if two computers use different protocols when trying to communicate ...

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