For beginners, it is more appropriate to read Teacher Xie Xiren's Computer Network (both the fifth and sixth editions are acceptable). The content is certainly rich enough for beginners, and the difficulty is not too great. It is more detailed and easier to understand.

For the follow-up experiment (command), it depends on whether you study Cisco system or Huawei system. There are some differences between the commands of the two systems, but the general meaning is not much different. Books of these two systems can be found on the Internet.

As a beginner, after reading the above book Computer Network, you will have a basic understanding of the network. If you want to continue to study more carefully, you can take the time to learn the TCP/IP protocol.

1. Computer network refers to a computer system that connects multiple computers with independent functions located in different geographical locations and their external devices through communication lines, and realizes resource sharing and information transmission under the management and coordination of network operating system, network management software and network communication protocol.

2. Computer Network (5th Edition) has been revised in 1994, 1999 and 2003 since it was first published in 1989. In August, 2006, the textbook passed the evaluation of the Ministry of Education and was included in the "Eleventh Five-Year" national planning textbook for general higher education. The fifth edition of Computer Network has been greatly revised in content and structure.

The book is divided into 10 chapters, which comprehensively and systematically introduces the development and principle framework of computer network, physical layer, data link layer, network layer, transport layer, application layer, network security, audio/video services on the Internet, wireless network and the next generation Internet. Each chapter is accompanied by exercises. In addition, Appendix A gives the answers and tips of some exercises. The CD attached to the book contains more than 65,438+050 problems and solutions that the author often encounters in teaching, the demonstration of the most basic concepts of computer network (PowerPoint file), and all RFC documents cited in Computer Network (fifth edition) for readers' reference.

References:

Computer Network-Baidu Encyclopedia