During the last thirty years or so it has been widely recognised in the research community that the key transmission medium seeming capable of serving both the ever-growing demand for bandwidth and the unceasing need for new services, is optical (more…)

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IP (internet protocol) Telephony, enabled by softswitches, is going to usher in a new era in telecommunications. By putting voice and data over one IP network, operators can enjoy lower costs and create new, revenue-generating “multimedia” services.
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What is IPSec? What’s a VPNNetworksinglesecurity. Starting with a primer on the IP protocol suite, the book travels layer by layer through the protocols and the technologies that make VPNs possible. It includes security theory, cryptography, RAS, (more…)

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Network Security: Know It All explains the basics, describes the protocols, and discusses advanced topics, by the best and brightest experts in the field of network security. (more…)

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