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 LANs
• review of key networking concepts, covering the technological characteristics of LANs and WANs, standards organizations and the OSI reference model
• examination of the operation and utilization of different types of networks
• detailed coverage of routers and bridge routing methods
• guidance on gateway functions, methods and applications
• mathematical models to allow the reader to evaluate network performance

Surface Science is understood as a relatively young scientific discipline, concerned with the physical and chemical properties of phenomena on clean and covered solid surfaces, studied under a variety of conditions. The adsorption of atoms and molecules on solid surfaces is, for example, such a condition, connected with more or less drastic changes of all surface properties. An adsorption event is frequently observed in nature and found to be of technical importance in many industrial processes. For this reason, Surface Science is interdisciplinary by its very nature, and as such an important intermediary between fundamental and applied research.

Whether you are a network manager tasked with providing local wireless access to corporate business systems, or a home-based user, keen to optimize your data communications network, security will be the issue uppermost in your mind.

Wireless LANs are becoming ubiquitous. From hotel lobbies to Starbucks coffee shops, from airports to offices, you can hardly avoid wireless LAN signals. Similarly widespread is the recognition that they are not secure.

Create a communications network with the appropriate level of security for your needs!

In Securing Wireless LANs Gil Held examines how wireless LANs operate, with special attention focused on the IEEE 802.11 standards. He clearly outlines the vulnerabilities in the standard and its extensions before going on to propose techniques and products you can use to overcome these limitations.

Find out …

• how to optimise the embedded security features of the IEEE 802.11 standards and extensions.
• how you can enhance the security of over-the-air transmission.
• which products, technologies and techniques you can ‘bolt on’ to your wireless LAN to provide the level of security you need

For the busy reader:

• an overview of methods and techniques that can be employed to improve on ‘off-the-shelf’ IEEE 802.11 security
• a checklist of relevant security technologies and the products they are implemented in

Screen shots illustrating tools and techniques and plentiful examples make this an accessible and thorough introduction to Wireless LAN security.

Ethernet Networks, Fourth Edition, provides everything you need to know to plan, implement, manage and upgrade Ethernet networks.

• Improve your skills in employing Ethernet hubs, switches, and routers.

• Learn how to set up and operate a wireless Local Area Network (LAN).

• Discover how to extend a wired Ethernet via wireless LANs.

• Understand cabling standards and the role of NEXT (Near End Crosstalk), FEXT (Far End Crosstalk) and other transmission parameters.

• Profit from Gilbert Held's tips and tricks on enhancing security
  ……and much more.

• wireless Ethernet (IEEE802.11 standards)

• 10Gbps Ethernet

• firewalls in both a wired and wireless environment

• AAA (authentication, authorization and accounting)

• the operation of new versions of Windows on Ethernet LANs

• the use of LAN switches at and above layer 2 in the ISO reference model

• copper and fiber optic cable to transport high speed Ethernet.

This new edition of the most comprehensive reference to the terms, definitions and abbreviations associated with data and computer communications contains almost 18,000 entries (approximately 50% more than the previous edition). Covering communications definitions, terms and abbreviations, this reference has become known as an indispensable "Communications Bible." New and expanded areas include Internet and Intranet terminology, ATM, LAN, and the latest developments in communications technology. Approximately 1,000 trade names are also included allowing readers to easily identify devices and facilities.