Building Scalable Cisco Networks is a direct complement to the Cisco authorized training course of the same name. Based on the content of the new BSCN course, this book addresses tasks that network managers and engineers need to perform when managing access and controlling overhead traffic in growing, routed networks. The book discusses router capabilities used to control multi-protocol traffic over LANs and WANs, as well as connecting corporate network to an Internet Service Provider (ISP). Divided into three parts (Scalable Internetworks, Scalable Routing Protocols, and Controlling Scalable Internetworks), the book covers a broad range of technical details on topics related to routing, including routing summarization, IP traffic management, access lists, and protocol redistribution. OSPF, EIGRP, and BGP are all investigated in detail. Configuration examples and sample verification outputs demonstrate troubleshooting techniques. Case studies are used throughout the book to review key concepts and discuss critical issues surrounding network operation. Chapter-ending review questions and configuration exercises illustrate and help reinforce concepts presented in the book and provide self-assessment for the reader.