Dedications

To my parents and grandparents, for encouraging me to always ask questions, explore new ideas, and expand my horizons by continuously striving to learn new topics throughout my career in information technology. Without their wisdom and guidance, I would not be where I am today.—Kyzer

To my beautiful wife, who has always supported me and our family. Each time I work on a project, she takes on more of the tasks at home (especially when I was chasing the CCIE), and I appreciate all she does. To my amazing children, who help motivate me to be a better version of myself. To my parents, siblings, and extended family who all helped me grow up to be the man I am today: I love each of you very much.

Last, but not least, to all the people who’ve made the Cisco collaboration content and from whom I’ve learned over the years. Here is a short list: Vik Malhi, Mark Snow, Kevin Wallace, Paul Giralt, Jeremy Cioara, Andy Vassar, Ralph Smith III, and Network Chuck.—Patrick

This book is affectionately dedicated to my family.

To my brilliant and beautiful wife, Becky, whose infinite patience and steadfast love, friendship, and support have been the inspirational driving force in my life.

To our wonderful children, Alejandro, Sofia, Gabriela, and Mateo, who have given me the greatest joy and have loved me unconditionally and without question all the days of their lives. It's hard to put into words how much I love all of you and how proud I am to be your father.

Finally, I dedicate this book to my parents, Alberto and Elena, who have given me so much for so long. I know that I will never be able to repay the lifetime of kindness, encouragement, and learning. Please know that I walk in your footsteps, knowing full well that the amazing life that I lead is only possible because of you.—Gonazalo