Introduction

Welcome to Cisco's IP Routing Primer! This book covers the generic behavior of IP routing and packet forwarding using Cisco routers. It goes into detailed analysis of several real-life scenarios to provide insight into the fundamentals of IP that everybody supporting IP in a network should know.

By providing examples taken directly from Cisco routers, this book enables the reader to associate theoretical behaviors discussed in many internetworking books with their real-life counterparts. The reader should find it much easier to understand statements such as "Split horizon refers to the concept of not advertising routes over the interface they were learned from …" when it is accompanied by actual screen output from a Cisco router as ...

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