This document outlines the key objectives and topics to be covered in a chapter about Ethernet networking fundamentals. The chapter will describe the physical characteristics and data link features of Ethernet, explain how Ethernet addresses work and their impact on performance, compare using Ethernet switches versus hubs, and detail the Address Resolution Protocol (ARP) process. Specific topics to be addressed include the evolution of Ethernet media, how switches eliminate collisions, MAC addressing formats, and issues that can arise with ARP broadcasts.