A Study of Cache-Based IP Flow Switching

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Technical Reports (CIS)
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Ertugay, Osman
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Meeting the service demands from QoS-based network applications is a very challenging task performed in many high-end routers and switches. This task involves management of resources like bandwidth and memory in network devices. The memory in the form of a very fast cache that instruments wire-speed classification, discrimination, and forwarding of network packets needs to be managed very effectively. We examine the management of a specific IP flow-cache architecture through simulations based on traffic traces collected from a campus intranet. A probabilistic cache install policy is examined over a range of cache sizes and install probabilities. This policy successfully identifies the flows that warrant caching and slightly improves deployable policies based on site-specific traffic information can increase the switching performance even higher.

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2000-11-16
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University of Pennsylvania Department of Computer and Information Science Technical Report No. MS-CIS-00-22.
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