说明：  本书是网络原理和工程实践的绝佳教科书，不仅适用于教师备课和课程实践的安排，而且有利于网络工程人员自学。该书涉及网络方方面面，包括标准，协议，设备，软件配置，安全和系统集成等，能使你在短时间内从外门汉成为令人羡慕的网络高手。根据学习特点进行内容编排也是本书一大特色，本书提供现实生活中的实例，并配有大量实践练习，不仅能让你在短时间内轻松掌握网络基本原理，而且能在学习基本原理的同时及时进行网络实践，使你成为名副其实的“理论家”和“实践家”。
(This book is the network theory and engineering practice, a great textbook, not only for teachers to prepare lessons and curriculum practice arrangements, but also to network engineering staff self-learning. All aspects of the book involves the network, including standards, protocols, devices, software configuration, security, and system integration, enabling the door from the outside in a short time you become the envy of the network of Chinese master. According to the study characteristics is presented in the book is also a major feature of the book provides real life examples and practical exercises Peiyoutailiang not only allow you to network in a short time to master the basic principles, but also the basic principles of learning Practice the same time the network in time, so that you become a veritable "theorists" and "practitioners.")