Network Design

Before purchasing equipment or deciding on a hardware platform, you should have a clear idea of the nature of your communications problem. Most likely, you are reading this book because you need to connect computer networks together in order to share resources and ultimately reach the larger global Internet. The network design you choose to implement should fitthe communications problem you are trying to solve. Do you need to connect a remote site to an Internet connection in the center of your campus? Will your network likely grow to include several remote sites? Will most of your network components be installed in fixed locations, or will your network expand to include hundreds of roaming laptops and other devices?

When solving a complex problem, it is often useful to draw a picture of your resources and problems. In this chapter, we will look at how other people have built wireless networks to solve their communication problems, including diagrams of the essential network structure. We will then cover the networking concepts that define TCP/IP, the primary networking language currently spoken on the Internet. We will then demonstrate several common methods for getting your information to flow efficiently through your network and on to the rest of the world.