Chapter 21

Ethernet Switching

Objectives

Upon completion of this chapter, you will be able to answer the following questions:

  • How do the OSI model Layer 1 and Layer 2 function in an Ethernet network?

  • How are the Ethernet sublayers related to the frame fields?

  • What is the Ethernet MAC address?

  • How does a switch build its MAC address table and forward frames?

Key Terms

This chapter uses the following key terms. You can find the definitions in the Glossary.

Ethernet

Institute of Electrical and Electronic Engineers (IEEE)

contention-based access method

collision fragment

runt frame

jumbo frame

baby giant frame

cyclic redundancy check (CRC)

Introduction (21.0)

Hey, it’s Webster again! Marcy and Vincent are beginning to see the value of Bob’s ...

Get Networking Essentials Companion Guide v3: Cisco Certified Support Technician (CCST) Networking 100-150, 2nd 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