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In this paper, we have described the design and implementation of an efficient, layer-7 switching mechanism for Web clusters. We have demonstrated that a careful design and optimized implementation choices may lead to a Web switch with limited overheads, even on SMP nodes. The experimental results have shown that the proposed mechanism is extremely scalable, thus making a content-aware Web switch a suitable solution to the performance requirements of the majority of cluster-based architectures.

Mauro Andreolini 2003-03-13