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[ Pobierz całość w formacie PDF ] Advanced IP Network Design (CCIE Professional Development) Alvaro Retana Don Slice Russ White Publisher: Cisco Press First Edition June 17, 1999 ISBN: 1-57870-097-3, 368 pages Front Matter Table of Contents Index About the Author Advanced IP Network Design provides the solutions network engineers and managers need to grow and stabilize large IP networks. Technology advancements and corporate growth inevitably lead to the necessity for network expansion. This book presents design concepts and techniques that enable networks to evolve into supporting larger, more complex applications while maintaining critical stability. Advanced IP Network Design provides you with a basic foundation to understand and implement the most efficient network design around the network core, distribution and access layers, and the common and edge network services. After establishing an efficient hierarchical network design, you will learn to apply OSPF, IS-IS, EIGRP, BGP, NHRP, and MPLS. Case studies support each protocol to provide you with valuable solutions to common stumbling blocks encountered when implementing an IGP- or EGP-based network. 1 Advanced IP Network Design (CCIE Professional Development) About the Authors About the Technical Reviewers Acknowledgments Introduction What Is Covered Motivation for the Book I: Foundation for Stability: Hierarchical Networks 1. Hierarchical Design Principles Where Do You Start? The Right Topology The Network Core The Distribution Layer The Access Layer Connections to Common Services Summary Case Study: Is Hierarchy Important in Switched Networks? Review 2. Addressing & Summarization Summarization Strategies for Successful Addressing IPv6 Addressing General Principles of Addressing Summary Case Study: Default Routes to Interfaces Case Study: Network Address Translation Review 3. Redundancy Issues and Strategies of Redundancy Core Redundancy Distribution Redundancy Access Redundancy Connections to Common Services Summary Case Study: What's the Best Route? Case Study: Redundancy at Layer 2 Using Switches Case Study: Dial Backup with a Single Router Case Study: Dial Backup with Two Routers Review 4. Applying the Principles of Network Design Reforming an Unstable Network Review 2 II: Scaling with Interior Gateway Protocols 5. OSPF Network Design Dividing the Network for OSPF Implementation Case Study: Troubleshooting OSPF Adjacency Problems Case Study: Which Area Should This Network Be In? Case Study: Determining the Area in Which to Place a Link Case Study: Dial Backup Case Study: OSPF Externals and the Next Hop Review 6. IS-IS Network Design Dividing the Network Analyzing Routers on the DMZ for External Connections Other Factors in IS-IS Scaling Troubleshooting IS-IS Neighbor Relationships Case Study: The Single Area Option Case Study: The Two-Layer Network Review 7. EIGRP Network Design Analyzing the Network Core for Summarization Analyzing the Network's Distribution Layer for Summarization Analyzing Routing in the Network's Access Layer Analyzing Routes to External Connections Analyzing Routes to the Common Services Area Analyzing Routes to Dial-In Clients Summary of EIGRP Network Design Case Study: Summarization Methods Case Study: Controlling Query Propagation Case Study: A Plethora of Topology Table Entries Case Study: Troubleshooting EIGRP Neighbor Relationships Case Study: Troubleshooting Stuck-in-Active Routes Case Study: Redistribution Case Study: EIGRP/IGRP Redistribution Case Study: Retransmissions and SIA Case Study: Multiple EIGRP ASs Review III: Scaling beyond the Domain 8. BGP Cores and Network Scalability BGP in the Core Scaling beyond the Core Dividing the Network into Pieces BGP Network Growing Pains Case Study: Route Reflectors as Route Servers Case Study: Troubleshooting BGP Neighbor Relationships Case Study: Conditional Advertisement Case Study: Dual-Homed Connections to the Internet Case Study: Route Dampening Review 3 9. Other Large Scale Cores NHRP Case Study: NHRP in an ATM Network MPLS Review IV: Appendixes A. OSPF Fundamentals How OSPF Works Router IDs LSA Types Reliable Flooding of LSAs Building Adjacencies Adjacencies on Multi-Access Networks OSPF and Nonbroadcast Multi-Access Networks Areas External Route Injection Virtual Links On-Demand Routing B. IS-IS Fundamentals How IS-IS Works End Systems and Intermediate Systems CLNS Addressing Routing in an IS-IS Network Metrics & External Routes in IS-IS Networks Building Adjacencies LSP Flooding and SPF Recalculation Timers Neighbor Loss and LSP Regeneration IP Integration into IS-IS Multiple net Statements C. EIGRP Fundamentals DUAL Operation Establishing Neighbor Relationships in an EIGRP Network Metrics in an EIGRP Network Loop Free Routes in EIGRP Networks Split-Horizon in EIGRP Clearing the Topology Table and Querying Neighbors in EIGRP Networks Stuck-in-Active Routes Bounding Queries in EIGRP Networks EIGRP Summarization Changing Metrics in EIGRP for Reliable Transport Load Balancing in EIGRP Networks D. BGP Fundamentals Mechanics of a Path Vector Protocol Path Decision Community Strings Neighbor Relationships Route Filtering in BGP iBGP Synchronization 4 BGP Summarization E. Answers to the Review Questions Answers to Chapter 1 Review Questions Answers to Chapter 2 Review Questions Answers to Chapter 3 Review Questions Answers to Chapter 4 Review Questions Answers to Chapter 5 Review Questions Answers to Chapter 6 Review Questions Answers to Chapter 7 Review Questions Answers to Chapter 8 Review Questions Answers to Chapter 9 Review Questions Glossary A B C D E F G–H I–J K–L M N O–P Q–R S T U–Z About the Authors Our experience in the networking industry comes from both sides of the fence; we have managed networks, and we've taken calls from panicked engineers when the network melts. We have worked together on resolving issues in both large and small networks throughout the world, which range from minor annoyances to major meltdowns. We've analyzed what went wrong after the meltdown, and we've helped redesign some large networks. All of us currently work for Cisco Systems in various capacities. Alvaro Retana , CCIE #1609, is currently a Development Test Engineer in the Large Scale Switching and Routing Team, where he works first hand on advanced features in routing protocols. Formerly, Alvaro was a technical lead for both the Internet Service Provider Support Team and the Routing Protocols Team at the Technical Assistance Center in Research Triangle Park, North Carolina. He is an acknowledged expert in BGP and Internet architecture. 5
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Dobry przykład - połowa kazania. Adalberg I ty, Brutusie, przeciwko mnie?! (Et tu, Brute, contra me?! ) Cezar (Caius Iulius Caesar, ok. 101 - 44 p. n. e) Do polowania na pchły i męża nie trzeba mieć karty myśliwskiej. Zygmunt Fijas W ciepłym klimacie najłatwiej wyrastają zimni dranie. Gdybym tylko wiedział, powinienem był zostać zegarmistrzem. - Albert Einstein (1879-1955) komentując swoją rolę w skonstruowaniu bomby atomowej
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