Acknowledgments

I would like to thank the members of the Cisco ISP Expert Team who helped me validate many of the concepts presented in this material while I was developing it: Nga Vu for her perseverance in getting me to create the training document that was the genesis of this book and, finally, Shankar Vemulapalli and Srinivas Vegesna for their excellent technical editing. Finally, I would like to thank my wife, Lelia, for her support and motivation during the past year.