Exterior Gateway Protocols

6/15/99


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Table of Contents

Exterior Gateway Protocols

What Is an EGP?

Autonomous System (AS)

Autonomous System...

Terminology: Exterior routes

Why Do We Need an EGP?

Why do we need an EGP?

Interior vs. Exterior Routing Protocols

How does it work?

The Internet Today (an example)

Demilitarized Zone (DMZ)

BGP Basics

When to use BGP...

Two types of BGP

General Operation

Internal BGP Peering

External BGP Peering

Basic BGP commands:

Stub Network

Stub Network

Multi-Homed AS

Multihomed AS

Common Service Provider Network

Service Provider Network

Author: Abha Ahuja

Email: ahuja@merit.edu