Chapter 16

Border Gateway Protocol

Abstract

In this chapter, you will learn about the BGP and the essential role it plays on the Internet. With BGP, routing information is circulated outside the AS and to all routing domains. We’ll see how a simple routing policy change can make a destination unreachable.

You will learn about the differences between the Internet BGP (IBGP) and the Exterior Gateway Protocol (EBGP), and why both are needed. We’ll also look at BGP attributes and message formats.

Keywords

BGP; IDRP; NLRI; LAN networks; VPNs; IGP; IDRP

What You Will Learn

In this chapter, you will learn about the BGP and the essential role it plays on the Internet. With BGP, routing information is circulated outside the AS and to all routing domains. We’ll ...

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