Book "Study of packet switches with self-arshrutization: Methodical instructions for laboratory work on the course "Commutation Systems" by Sergey Mikhailovich Lapshin is a unique work that will become an indispensable assistant for students, graduate students and specialists in the field of information technology and network systems. This work not only describes theoretical aspects, but also offers practical guidance, which makes it especially valuable for those who seek a deeper understanding of the principles of modern networks. The book covers key topics related to packet switches and their functions, including the process of routing and traffic management. Lapshin, with extensive experience in network architecture, shares his knowledge of exactly how switches function, which algorithms are used to optimize data transmission, and how to improve the efficiency of network solutions. An important feature of this publication is the emphasis on self-archrutization, which allows readers not only to get acquainted with the theory, but also to apply it in practice within the framework of laboratory work. This book will be of interest to students of technical universities studying courses on network technologies, as well as engineers and IT specialists who want to update their knowledge and skills in the field of switching systems. It will suit both those who are just starting their way in the world of network technologies, and those who already have some experience and want to deepen their knowledge. Readers interested in topics such as network protocols, network architecture, and traffic management will find a lot of useful information in this book. The topics raised in the book are relevant and important in light of the rapid development of technology. With the constant increase in the volume of transmitted data and the complexity of network infrastructures, understanding the principles of packet switches is becoming critically important. Lapshin raises questions regarding not only theoretical fundamentals, but also practical aspects such as setting up and optimizing network devices, making the book particularly valuable for practitioners. The author's style is distinguished by clarity and accessibility of presentation, which allows the reader to easily assimilate even the most complex concepts. Lapshin uses many examples and illustrations, which helps to visualize the material and makes it more understandable. In addition, the author shares his own experience and practical advice, which adds special value to the book. Sergey Mikhailovich Lapshin is known not only for this work, but also for other publications devoted to network technologies and communication systems. His works are often recommended as teaching aids for students and professionals seeking professional advancement in the field of information technology. If you are interested in books such as “Data Transfer Systems” or “Basics of Network Technologies”, then “Study of packet switches with self-arshrutization” will be a logical continuation of your training and expanding your horizons. In conclusion, the “Study of packet switches with self-archrutization” is not just a training manual, but a whole world of knowledge that will open doors for you to the world of modern network technologies. This book will be your reliable companion on the way to mastering the complex but fascinating aspects of switching systems, and will help you become a real professional in this field. Do not miss the opportunity to immerse yourself in the study of this important topic and improve your skills with the help of the work of Sergey Mikhailovich Lapshin!