Modern TCP/IP Network Principles and Technology

Author: Gong Zhenghu
Publisher:
Publish Date: 2002-09-01
Features: In the development process of computer networks, TCP/IP networks have been the most influential type of network on human society so far. TCP and IP are two network communication protocols, and the network centered around these two core protocols is collectively referred to as a TCP/IP network. The Internet or the Internet, as commonly referred to, is a TCP/IP network, and most corporate intranets are also TCP/IP networks. TCP/IP networks have undergone nearly 20 years of development. Early TCP/IP networks (classic TCP/IP networks) were low-speed, fixed-data networks oriented towards scientific research and teaching, which could not satisfactorily carry multimedia information and were not suitable for the operation of commercial application systems. Without changing the fundamental principles and protocols of the classic TCP/IP network, improving its network architecture and protocols at each layer, adding security, quality of service control, multicast, and mobile computing capabilities, and introducing high-speed network and network switching technologies as well as the IPv6 protocol, have formed modern TCP/IP networks. The principles and related technologies of TCP/IP networks and their development process reflect thousands of RFC documents published by the IETF. Given the importance of TCP/IP networks, it is very necessary to publish books that allow readers to systematically understand the principles and technologies of modern TCP/IP networks without having to read a large number of RFC documents. This book is based on RFC documents as the primary reference materials and is written in combination with the author's long-term scientific research and teaching practice. Chapter discusses the architecture of computer networks, modern popular high-speed local area networks and wide area networks, and examples of computer networks. Chapter 2 systematically describes the basic principles of TCP/IP networks. Chapter 3 discusses the main routing protocols currently in use, as well as the developing multicast routing technology and mobile routing technology. Chapter 4 discusses the working principles of the main equipment for building modern TCP/IP networks—network switches. Chapter 5 describes the key technologies that need to be solved for TCP/IP networks to carry multimedia information. Chapter 6 systematically describes the working principles of the next-generation TCP/IP network (IPv6 network). Chapter 7 discusses the security issues of TCP/IP networks, including the basics of cryptography, digital signatures, security protocols, key management, etc. Chapter 8 focuses on describing the implementation technologies of major network application systems such as network management, email, and information services. The first two chapters of this book are foundational knowledge, and readers who already have a preliminary understanding of computer networks and TCP/IP networks can skip these two chapters. The last six chapters systematically explain the technologies involved in modern TCP/IP networks in an easy-to-understand manner. Each chapter has a certain degree of independence, and readers can freely choose the chapters they are interested in reading. Each chapter is accompanied by review questions to help readers review the main content of the chapter. Some of the review questions require readers to refer to other textbooks or conduct some research to find the answers.