Chapter 11. Switching and Virtual LANs (VLANs)

THE FOLLOWING COMPTIA NETWORK+ EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:

  • 3.3 Explain the advanced features of a switch

    • PoE

    • Spanning tree

    • VLAN

    • Trunking

    • Port mirroring

    • Port authentication

Layer 2 switching is the process of using the hardware addresses of devices on a LAN to segment a network. Because you've got the basic ideas down, I'm now going to focus on the more in depth particulars of Layer 2 switching and how it works.

You already know that switching breaks up large collision domains into smaller ones and that a collision domain is a network segment with two or more devices sharing the same bandwidth. ...

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