(Network engineering is not only a highly inductive and intersecting skill, but also has its common scientific rules. The basic idea of ??this book is based on the basic skills of computer networks, clarifying the relatively sophisticated thinking and structure used in computer networks, highlighting the planning, equipment and management methods of ordinary computer networks, and cultivating students to analyze and solve problems. The talent for questioning. This book has a moderate theoretical explanation, focuses on engineering, guides the implementation of engineering with theory, and reflects the current situation and mainstream skills of computer networks. The experiments provided in this book are very practical, which can help students to touch practical computer networks step by step, understand the characteristics of computer networks, deepen their understanding of computer networks, grasp the use of typical network equipment and network tools, grasp campus network, small Planning and construction methods for Internet cafes, wireless local area networks, etc. There are 9 chapters in this book. Chapters 1 and 2 introduce the fundamental concepts and primary skills of computer network engineering. Chapter 3 introduces network planning. Chapter 4 introduces general knowledge of inductive wiring skills and engineering planning. Chapter 5 introduces network operating systems. , The 6th chapter introduces the switchboard and the router, the 7th chapter introduces the security of the computer network, the 8th chapter introduces the network engineering project management, and the 9th chapter introduces the network engineering example.)