Background Reading
| Networking tutorial |
The Layered Communications Protocol and the IP Addressing Tutorials |
| LANs | The Ethernet and switching Tutorials |
| Networking |
The Cisco Internetworking Handbook, some of it is old but the first chapter gives a good overview |
| Networking Basics | The Light Reading Site has some good basic articles (need to register) |
| Wireless LANs | The Wikipedia page gives a good overview |