Is-Is Network Design Solutions

The definitive IS-IS reference and design guide

• Extensive coverage of both underlying concepts and practical applications of the IS-IS protocol
• Detailed explanation of how the IS-IS database works and relevant insights into the operation of the shortest path first (SPF) algorithm
• Comprehensive tutorial on configuring and troubleshooting IS-IS on Cisco routers
• Advanced information on IP network design and performance optimization strategies using IS-IS
• Network design case studies provide a practical perspective of various design strategies
• Comprehensive overview of routing and packet-switching mechanisms on modern routers
• A collection of IS-IS packet formats and analyzer decodes useful for mastering the nuts and bolts of the IS-IS protocol and troubleshooting complex problems

Interior gateway protocols such as Intermediate System-to-Intermediate System (IS-IS) are used in conjunction with the Border Gateway Protocol (BGP) to provide robust, resilient performance and intelligent routing capabilities required in large-scale and complex internetworking environments. Despite the popularity of the IS-IS protocol, however, networking professionals have depended on router configuration manuals, protocol specifications, IETF RFCs, and drafts. Mastering IS-IS, regardless of its simplicity, has been a daunting task for many.

IS-IS Network Design Solutions provides the first comprehensive coverage available on the IS-IS protocol. Networking professionals of all levels now have a single source for all the information needed to become true experts on the IS-IS protocol, particularly for IP routing applications. You will learn about the origins of the IS-IS protocol and the fundamental underlying concepts and then move to complex protocol mechanisms involving building, maintaining, and dissemination of the information found in the IS-IS database on a router. Subsequent discussions on IP network design issues include configuration and troubleshooting techniques, as well as case studies with practical design scenarios.

Table of Contents

Foreword.
Introduction.

I. IS-IS PROTOCOL: DESIGN SPECIFICATION AND FEATURES.

1. Overview of IP Routing.
2. Introduction to the IS-IS Routing Protocol.
3. Integrated IS-IS Routing Protocol Concepts.
4. Addressing in Integrated IS-IS.
5. The IS-IS Link-State Database.
6. The Shortest Path First Algorithm. 

II. INTEGRATED IS-IS NETWORK DESIGN FOR IP INTERNETS.

7. General Network Design Issues.
8. Network Design Scenarios.

III. CONFIGURING AND TROUBLESHOOTING INTEGRATED IS-IS.

9. Configuring IS-IS for IP Routing on Cisco Routers.
10. Troubleshooting the IS-IS Routing Protocol.

IV. APPENDIXES.

Appendix A. IS-IS Packet Formats.
Appendix B. Answers to Review Questions.
Index.