The OSI Model
Positioning 802.3 Ethernet within the ISO 7-layer model and comparing it with other protocols occupying an equivalent position.
The history of Ethernet showing the topologies, the various components, the alternative frame structures and MAC addressing. Also introducing LLC and SNAP.
Introducing the purpose of bridging, how a bridge works, problems introduced and dealt with by Spanning Tree, filtering and Management.
Benefits of switches over bridges. Construction of Virtual LANs and use of traffic classes for prioritisation.
Higher Speed Ethernet
A look at the development of Fast Ethernet and Gigabit Ethernet. The cabling types are discussed as is Autonegotiation and the coding techniques used.