Acknowledgments

I first and foremost want to thank Catherine Nolan and all of the editorial, production, and marketing staff at Addison-Wesley for the extraordinary patience they had with me and with my long string of missed deadlines. I also want to thank my development editor, Laurie McGuire. This is not the first book Laurie and I have worked on together, and as usual she has made me appear to be a much better writer than I am.

Thanks to my technical reviewers: Eural Authement, Hannes Gredler, Dave Humphrey, Pete Moyer, Mike Shand, and Rena Yang. The experience and depth of knowledge this group represents are incomparable, and no author could ask for a better review team. I would also like to thank Ross Callon, Vint Cerf, Steve Crocker, Paul Goyette, Matt Kolon, Chelian Pandian, and Russ White, and all of my colleagues in the Professional Services group of Juniper Networks, for comments and advice on specific sections of the book.

My wife, Sara, and my children, Anna, Carol, James, and Katherine, are my bedrock. Their support and encouragement have been essential to the success of this book project; and the love, teasing, and laughter they bring into my life is priceless. Without them, I would be adrift.

Finally, I want to thank all of the readers of my previous books. I am honored by the kind comments and generous compliments I have received from around the world, and I hope you find this book to be equally useful.