Skip to Main Content
BGP
book

BGP

by Iljitsch van Beijnum
September 2002
Intermediate to advanced content levelIntermediate to advanced
288 pages
8h 36m
English
O'Reilly Media, Inc.
Content preview from BGP

Preface

This is a book about connecting to the Internet as reliably as possible. This means eliminating all single points of failure, including having just one Internet service provider (ISP). By multihoming to two or more ISPs, you can remain connected when either ISP (or your connection to them) experiences problems. However, there is a catch: if you are a regular customer, your ISP makes sure your IP addresses are known throughout the Net, so every router connected to the Internet knows where to send packets addressed to your systems. If you connect to two ISPs, you’ll have to do this yourself and enter the world of interdomain routing via the Border Gateway Protocol (BGP). The majority of this book deals with BGP in a practical, hands-on manner.

My involvement with BGP started in 1995, when I entered a darkened room with a lot of modem lights blinking and was told, “This box connects to both our ISPs, but it doesn’t do what we want it to. Maybe you can have a look. It’s called a Cisco. Here are the manuals.” It didn’t take me long to figure out that we needed to run BGP to make this setup work as desired, but getting information on how to do this properly was a lot harder: very little of the available BGP information takes actual interdomain routing practices into account. In this book, I intend to provide an insight into these practices, based on my experiences as a network engineer working for several small multihomed ISPs and a large ISP with many multihomed customers, and ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

BGP Troubleshooting LiveLessons

BGP Troubleshooting LiveLessons

Vinit Jain
MPLS Fundamentals

MPLS Fundamentals

Luc De Ghein
MPLS Fundamentals

MPLS Fundamentals

Luc De Ghein - CCIE No. 1897

Publisher Resources

ISBN: 9780596002541Errata Page