tailieunhanh - The Illustrated Network- P4

The Illustrated Network- P4:In this chapter, you will learn about the protocol stack used on the global public Internet and how these protocols have been evolving in today’s world. We’ll review some key basic defi nitions and see the network used to illustrate all of the examples in this book, as well as the packet content, the role that hosts and routers play on the network, and how graphic user and command line interfaces (GUI and CLI, respectively) both are used to interact with devices. | Preface xxix ACKNOWLEDGMENTS I would like to thank various leaders in their respective fields who have given me their time and read and reviewed selected chapters of this work. Their comments have made this a much better book than it would have been without their involvement. Any errors that remain are mine. I would like to thank colleagues at Juniper Networks Inc. who gave their time and effort to create this network. In many cases they also helped with the book. It starts at the top with Scott Kriens who has created an environment where creativity and exploration are encouraged. Thanks Scott The list goes on to include June Loy Aviva Garrett Michael Tallon Patrick Ames Jason Lloyd Mark Whittiker Kent Ketell and Jeremy Pruitt. Finally I would like to thank my lead technical reviewers Joel Jaeggli and Robin Pimentel for the careful scrutiny they gave the book and the many fine corrections and comments they provided. Lead Technical Reviewers Joel Jaeggli works in the security and mobile connectivity group within Nokia. His time is divided between the operation of the AS 14277 research network and supporting the strategic planning needs of Nokia s security business. Projects with former employer the University of Oregon included the Network Startup Resource Center Oregon Route views project the Beyond BGP Project and the Oregon Videolab. He is an active participant in several industry-related groups including the IETF working group chair and NANOG two terms on the program committee . Joel frequently participates as an instructor or presenter at regional and international network meetings on Internet services and security-related topics. Robin Pimentel is currently a network engineer at Facebook where he helps the production network sustain growth alongside Facebook s user and application growth. Previously Robin worked on the production network teams at Google and Yahoo. Robin also spent 6 years at Teradyne where he performed many networking security and .