Chapter 3. Fundamentals of LANs
This chapter covers the following subjects:
An Overview of Modern Ethernet LANs: Provides some perspectives for those who have used Ethernet at the office or school but have not examined the details.
A Brief History of Ethernet: Examines several old options for Ethernet cabling and devices as a point of comparison for today’s cabling, devices, and terminology.
Ethernet UTP Cabling: Explains the options for cabling and cable pinouts.
Improving Performance by Using Switches Instead of Hubs: A more detailed examination of the performance improvements made by using switches instead of older Ethernet hubs.
Ethernet Data-Link Protocols: Explains the meaning and purpose of the fields in the Ethernet header and trailer.