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– End-to-end connections experience a high level of diversity in network characteristics. At one extreme, an application may receive highly degraded service, leaving the application unusable. At another extreme, the costs to guarantee some level of service may be undesirably high to the user or overall system. Open architecture networks help applications(More)
¡ ¡ Computer networks are becoming more complex and diverse. Increasingly, an end-to-end connection will traverse several links with orders of magnitude differences in characteristics such as bandwidth, latency, error rate, jit-ter, and monetary cost. At the same time, most applications assume a level of network characteristics below which they either(More)
Server-class computers cannot consume power without bound, since increased energy consumption translates into increased heat dissipation, greater cooling requirements, reduced computational density, and higher operating costs. For a typical data center, storage alone accounts for 27% of the energy consumption, making storage an important target for energy(More)
— Distributed denial-of-service attacks represent a major security problem. The main task of defense systems is to accurately detect these attacks and quickly respond to stop the oncoming flood. It is equally important to recognize the legitimate traffic that shares the attack signature and deliver it reliably to the victim. Unfortunately, there is no(More)