Computer Systems and Networks . Design of computer networks based on CISCO-2801 OPNET router by Ivanov B. In. is a unique guide that immerses the reader in the world of computer network design using powerful equipment from Cisco. This edition will be a real find for students, information technology specialists and anyone who seeks to better understand the architecture and functioning of modern network solutions. In his book Ivan in . In. considers in detail the process of designing computer networks, focusing on the CISCO-2801 router. This router, with its high performance and reliability, is an ideal tool for creating and managing networks of various scales. The author not only explains the technical aspects of working with this equipment, but also shares practical examples, which allows readers to easily digest the material and apply it in practice. The book covers a wide range of topics, ranging from the basics of network technologies to complex concepts of routing and traffic management. The reader will learn about the principles of network protocols, design methods, and how to use OPNET software to model and analyze network solutions. This makes the book especially useful for those who want not only to learn the theory, but also to learn how to apply knowledge in real conditions. Who can like this edition? First of all, technical students studying information technology, network systems and telecommunications . The book will also be of interest to practitioners who want to update their knowledge or master new technologies. Even novice IT specialists will find in it a lot of useful information that will help them confidently step into the world of network technologies. The topics raised in the book cover not only technical aspects, but also design issues that require creativity and strategic thinking. Ivanov V. In. focuses on the importance of choosing the right equipment, planning the network and ensuring its security. With the rapid development of technology and an increase in the amount of data transmitted, these aspects are becoming especially relevant. The author's style is characterized by accessibility and clarity. Ivanov V. In. He is able to explain complex things in simple language, which makes his book understandable even for those who are just starting their way in the world of computer networks. His experience and knowledge, backed by practical examples, create a unique learning atmosphere where every reader can feel part of a fascinating design process. In addition, Ivanov V. In. is the author of other well-known works in the field of information technology, which confirms his status as an expert in this field Readers interested in the topics of network security, administration and data management can also find interesting and useful materials in his other books. Computer Systems and Networks . Designing computer networks based on the CISCO-2801 OPNET router is not just a tutorial, but a real find for anyone who wants to deepen their knowledge in the field of network technologies. This book will be a reliable companion in your professional development, opening up new horizons in the world of information technology. Don’t miss the opportunity to learn more about computer network design and become an expert in this exciting field!