Routing in TCP/IP
Routing in TCP/IP is a subject that has filled 162 RFCs (at last count) and could easily fill a dozen books. What is truly remarkable about TCP/IP routing is that it works so well. An average homeowner can call up an Internet browser and connect with a computer in China or Finland without a passing thought to the many devices forwarding the request around the world. Even on smaller networks, routers play a vital role in controlling traffic and keeping the network fast. The following sections discuss some of the concepts you'll need to be familiar with in order to understand routing in TCP/IP. The next hour discusses these concepts in greater detail.
What Is a Router?
The best way to describe a router is to describe how it looks. ...