Riassunto
This concise guide offers the basic concepts of IP routing, free of hype and jargon. It begins with the simplest routing protocol, RIP, and then proceeds, in order of complexity, to IGRP, EIGRP, RIP2, OSPF, and finally to BGP. New concepts are presented one at a time in successive chapters. By the end, you will have mastered not only the fundamentals of all the major routing protocols, but also the underlying principles on which they are based. The basic information in IP Routing is designed to help you begin configuring protocols for Cisco routers. Although author Ravi Malhotra assumes that readers have a basic understanding of TCP/IP and are somewhat familiar with Cisco router configurations, he also assumes that you find some or all of these protocols difficult to work with. His book presents concepts simply, as nuts and bolts. Malhotra's use of plain language, analogy, and the recurring example of an imaginary network, which grows in complexity as the book progresses, will help you understand fundamental concepts behind each protocol. Once you master these concepts, you will benefit from the detailed information contained in Cisco manuals and web pages (such as bug lists, new features, design guides, etc). Depending on your skill level, you can either read IP Routing from cover to cover or use it as a reference for any of the protocols presented. The book describes administrative tools available to all the routing protocols, including those that block the advertisement of routing updates, and those that set up preferences for one routing protocol over another. Honed by years of teaching Data Communications at major universities and managing IP networks in production environments, Ravi Malhotra's knowledge of this subject makes IP Routing is the ideal primer to Internet routing protocols.
Contenuti
Dedication; Preface; Audience; Organization; Conventions Used in This Book; How to Contact Us; Acknowledgments; Chapter 1: Starting Simple; 1.1 What Is IP Routing?; 1.2 Directly Connected Networks; 1.3 Static Routing; 1.4 Dynamic Routing; 1.5 The Routing Table; 1.6 Underlying Processes; 1.7 Summing Up; Chapter 2: Routing Information Protocol (RIP); 2.1 Getting RIP Running; 2.2 How RIP Finds Shortest Paths; 2.3 Convergence; 2.4 Subnet Masks; 2.5 Route Summarization; 2.6 Default Route; 2.7 Fine-Tuning RIP; 2.8 Summing Up; Chapter 3: Interior Gateway Routing Protocol (IGRP); 3.1 Getting IGRP Running; 3.2 How IGRP Works; 3.3 Speeding Up Convergence; 3.4 Route Summarization; 3.5 Default Routes; 3.6 Classful Route Lookups; 3.7 Summing Up; Chapter 4: Enhanced Interior Gateway Routing Protocol (EIGRP); 4.1 Getting EIGRP Running; 4.2 EIGRP Metric; 4.3 How EIGRP Works; 4.4 Variable Length Subnet Masks; 4.5 Route Summarization; 4.6 Default Routes; 4.7 Troubleshooting EIGRP; 4.8 Summing Up; Chapter 5: Routing Information Protocol Version 2 (RIP-2); 5.1 Getting RIP-2 Running; 5.2 RIP-2 Packet Format; 5.3 RIP-1/RIP-2 Compatibility; 5.4 Classful Versus Classless Routing Protocols; 5.5 Classful Versus Classless Route Lookup; 5.6 Authentication; 5.7 Route Summarization; 5.8 Summing Up; Chapter 6: Open Shortest Path First (OSPF); 6.1 Getting OSPF Running; 6.2 OSPF Metric; 6.3 Definitions and Concepts; 6.4 How OSPF Works; 6.5 Route Summarization; 6.6 Default Routes; 6.7 Virtual Links; 6.8 Demand Circuits; 6.9 Stub, Totally Stubby, and Not So Stubby Areas; 6.10 NBMA Networks; 6.11 OSPF Design Heuristics; 6.12 Troubleshooting OSPF; 6.13 Summing Up; Chapter 7: Border Gateway Protocol 4 (BGP-4); 7.1 Background; 7.2 Getting BGP Running; 7.3 How BGP Works; 7.4 Load Balancing; 7.5 Route Filtering; 7.6 Connecting to the Internet; 7.7 Choosing an ISP; 7.8 Troubleshooting BGP; 7.9 Summing Up; Chapter 8: Administrative Controls; 8.1 Filter Routing Information; 8.2 Rate the Trustworthiness of a Routing Information Source; 8.3 Redistribute Routes; 8.4 Maximum Number of Paths; 8.5 Summing Up; Colophon;
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