The world of enterprise routing with Juniper Networks devices is getting very
exciting—new technologies, products, and network developments are making the enterprise
network environment one of the most dynamic places to be. However, we, the
authors, hope to focus that energy by providing you with a detailed and practical foundation
that ensures effective use of the Junos operating system in your day-to-day job.
Juniper has rounded out its line of enterprise products to include not only routers but
also switches and security devices, so drawing from our professional services experiences,
this new edition provides you with design guidelines and comparisons of device
capabilities. Our hope here is not to give you a single way to design a network but plenty
of ideas that allow you to get the most from your network design, whatever it is.
Because we are also involved in the development and testing of certification exams,
including those for enterprise routing, this book does double duty. It is both a field
guide and a certification study guide. Readers who are interested in attaining a Juniper
Networks certification level would be wise to note that we discuss and cover topics that
are relevant to the official exams (hint, hint) and that the end of each chapter provides
a listing of examination topics covered as well as a series of review questions that allow
you to test your comprehension.
Regardless of one’s certification plans, this one-of-a-kind book will not be obsolete just
because you pass an exam. In fact, we wrote this material to serve as a useful field guide
almost any time you log on to a Juniper Networks router. The extensive use of tutorials,
samples of actual command output, and detailed theoretical coverage go well beyond
any certification exam, to provide you with something that can’t be tested—getting
things to work the right way, and the first time. When plan A fails, the material also
provides the steps needed to monitor network operation and quickly identify and resolve
the root cause of malfunctions.
As trainers who deal with large numbers of both experienced and inexperienced users
on a regular basis, we have seen it all. Within this guide, you will find the many pearls
of our accumulated wisdom, any one of which can easily pay for this book many times
over in increased network uptime and performance.