Cisco's Internetwork Operating Systems (IOS) software provides the means by which you, the network professional configures and manages Cisco networking devices. Comprehending what happens inside Cisco routers helps network designers and engineers perform your jobs more effectively. By understanding the internal operations of IOS, you can take architectural considerations into account when engineering networks and isolate problems easier when troubleshooting networks. Little has been published that can educate a Cisco user on the internal aspects of IOS at this level, and understanding these concepts will help CCIE candidates on the Cisco Device Operation portion of the CCIE qualification exam. Provides several case studies and review questions and exercises that make it an attractive component of any CCIE self-study program. This book discusses general architecture information that is useful for understanding the various data presented by the router concerning its status.

About the Author

Curtis Murphy, CCIE , is an engineer in Cisco's Serviceability Design Department in Research Triangle Park, specializing in IOS software products. He has worked in the networking industry since 1989 and at Cisco since 1994. While at Cisco, he has worked both as an IBM protocols specialist in the Technical Assistance Center and as a software engineer in IOS Software Development for mid-range and high-end routers.

Russ White, CCIE , is a member of the IOS Network Protocols Deployment and Scalability Team at Cisco, where he is involved in the design and implementation of routing protocols and scalable network design.

Vijay Bollapragada, CCIE , is currently a manager in the Solution Engineering team at Cisco, where he works on new world network solutions and resolves complex software and hardware problems with Cisco equipment. Vijay also teaches Cisco engineers and customers several courses, including Cisco Router Architecture, IP Multicast, Internet Quality of Service, and Internet Routing Architectures. He is also an adjunct professor in Duke University's electrical engineering department.

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