This tutorial covers common problems ISPs have when deploying BGP within their networks. We look at issues with peer establishment, missing routes, inconsistent route selection, and convergence issues. We also examine real-world examples of common errors that are made when deploying BGP, both as iBGP and eBGP, in service provider networks.

About the Presenter
Philip Smith joined Cisco Systems in January 1998. He is a member of the Service Provider Architectures Group of Consulting Engineering, within Corporate Development. His role includes working with many ISPs in the Asia-Pacific region and the rest of the world, specifically in network strategies, design, technology, and operations, as well as helping with network configuration and scaling. Other areas of interest also include Internet routing, Internet protocols, IPv6, and encouraging the growth of the Internet around the world.

Prior to joining Cisco, he spent 5 years at PIPEX (now part of UUNET's global ISP business), the UK's first commercial Internet Service Provider. He was one of the first engineers working in the UK Internet, and played a fundamental role in building the modern Internet in the UK and Europe.

Philip is co-author of Cisco ISP Essentials, ISBN 1-58705-041-2, published by Cisco Press. He holds a Doctor of Philosophy and has a First Class Honours Degree in Physics. He lives in Brisbane, Australia.