This tutorial looks at common problems ISPs face when deploying BGP within their network. We describe problems with peer establishment, missing routes, inconsistent route selection, and convergence issues. We also discuss real-world examples of typical errors made when deploying BGP, both as iBGP and eBGP, in service provider networks.

About the Presenter
Philip Smith has been with Cisco Systems for four years. He is part of the Internet Architectures Group, which is led by the CTO for Consulting Engineering. His role includes working with many ISPs in the Asia Pacific region, specifically in network design, configuration, and scaling, as well as providing training through an extensive ISP Workshop program.

Prior to joining Cisco, Philip spent five years in several key network engineering and operations roles 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 commercial Internet in the UK, and played a key role in building the modern Internet in Europe.