This book utilizes a number of elements and conventions to help present information as clearly as possible and to reiterate key concepts. One convention already noted is the practice of using a single example network throughout the book as a context for configuration samples. You can find an illustration of the ZIP network on the inside front cover for convenient reference.
Naturally, configuration code forms a central element of this book. Code fragments are presented in a distinctive typeface (monotype) for easy identification. Input that must be typed by the user is distinguished by bold in code fragments . Individual code terms that appear in paragraphs are presented in bold.
Other elements used in this text are as follows :