In this thoroughly revised and updated edition of Internetworking LANs and WANs, Gilbert Held offers guidance through this challenging area of communications technology. Internetworking often causes technological and administrative problems and this book will enable the reader to avoid the many pitfalls to achieve successful connection. This new edition covers hundreds of methods to interconnect local and geographically separated LANs. New topics examined include Fast Ethernet, Windows NT systems, Data Link Switching and the use of virtual LANs and virtual networking.; Features include:numerous screen images showing examples of how equipment is configured and how equipment operates to interconnect LANsreview of key networking concepts, covering the technological characteristics of LANs and WANs, standards organizations and the OSI reference modelexamination of the operation and utilization of different types of networksdetailed coverage of routers and bridge routing methodsguidance on gateway functions, methods and applicationsmathematical models to allow the reader to evaluate network performanceWritten by an expert in the field of telecommunications, this text is essential reading for all practising telecommunications engineers and undergraduate students on communications courses. Those technical network practitioners and computer science students who require a comprehensive guide to internetworking will also find this book valuable.