"In this new edition of their classic and bestselling textbook, authors Larry Peterson and Bruce Davie continue to emphasize why networks work the way they do. Their "systems approach" treats the network as a system composed of interrelated building blocks (as opposed to strict layers), giving students and professionals the best possible conceptual foundation on which to understand current networking technologies, as well as the new ones that will quickly take their place." "New to the edition is a downloadable network simulation lab manual that allows students to visualize and experiment with core networking technologies in direct coordination with the book's discussion. Thanks to this and many other enhancements, Computer Networks: A Systems Approach remains an essential resource for a successful classroom experience and a rewarding career in networking."--Jacket.