Is-Is: Deployment in IP Networks

  • Authors:
  • Russ White;Alvaro Retana

  • Affiliations:
  • -;-

  • Venue:
  • Is-Is: Deployment in IP Networks
  • Year:
  • 2002

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Abstract

From the Book:From the first inception of networked systems, networks have grown into large international systems that impact our daily lives in ways we can hardly begin to imagine. Just about every piece of information about any good or service, any financial transaction, and many other forms of communication, all pass through a network of some type. Each of these networks generally relies on one of four routing protocols to direct and guide these packets of information flowing from place to place: Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), the Border Gateway Protocol (BGP), and/or Intermediate System to Intermediate System (IS-IS).The goal of this book is to examine and describe the last of these protocols, IS-IS, a widely used protocol that hasn't been examined in the detail that other routing protocols have, in the context of routing for the Internet Protocol (TCP/IP) protocol suite. While IS-IS was originally designed to (and still does) provide routing information for the OSI suite of network protocols, most of the devices in use today use the IP protocols to communicate.If you are running IS-IS, are planning on running it, or are just a network engineer hoping to gain further understanding on the various concepts of routing and routing protocols, this book will help you. If you are protocol developer, this book will give you a sense of the IS-IS protocol, and how it is used.We begin, in Chapter 1, with an overview of the IS-IS protocol, including a short history, Dijkstra's Shortest Path First algorithm, and other fundamentals of the IS-IS routing system. The second chapter delves into protocol details, including packetformats and protocol mechanisms. Chapter 3 discusses designing an IS-IS routing domain, while Chapter 4 discusses other issues you may face when deploying a large-scale IS-IS network. Chapter 5 provides a very short look at the interaction between IS-IS and Multiprotocol Label Switching (MPLS). Each chapter includes review questions that may be suitable for use in a classroom environment; answers to the questions are provided in an appendix at the end of the book.