This book is devoted to modern aspects of the development of high-speed combined TCPIP and ATM networks. It covers a wide range of issues: from processing a single packet or cell in a queue on a router or switch to universal methods for reserving network resources for a certain type of traffic; from defining data flow characteristics to compression methods to reduce network load. The book will be of interest to everyone who would like to get an idea of ​ ​ the current level of development, architecture and development of high-speed computer networks.