NDLI: Modelling and performance evaluation of router transparent web cache mode.

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Modelling and performance evaluation of router transparent web cache mode.

Content Provider	CiteSeerX
Author	Al-Hemiary, Emad Hassan
Abstract	Abstract — This paper models and evaluates the performance of router transparent web cache mode in local area networks. A nearby transparent Web cache server intercepts client’s requests; forwarded by a layer 3 router or a layer 4 switch, and looks for a copy in its local cache store; if the object requested exits in its local cache, then a cache hit results and the object is forwarded to the router immediately which in turns delivers it to the client. Otherwise, the Web cache establishes a one-time TCP connection with the origin HTTP server and downloads that object. The analytical modelling is carried out using state transition diagrams and open queuing network modelling where the average response time is evaluated for different parameters like probability of cache hit, client HTTP requests (arrival) rate and external arrivals at the origin HTTP server. We also include the delay effects of transmission media between the local network and the Internet where the origin servers reside. Results obtained validate the model and show the significance of deploying Web cache server in a network. Keywords—Web cache model, performance of transparent Web cache, Web cache state transition diagram. I.
File Format	PDF
Access Restriction	Open
Subject Keyword	Router Transparent Web Cache Mode Performance Evaluation Origin Http Server Local Network Web Cache State Transition Diagram External Arrival Analytical Modelling Open Queuing Network Keywords Web Cache Model Cache Hit Web Cache Paper Model State Transition Diagram Local Cache Local Area Network Web Cache Server Client Request One-time Tcp Connection Nearby Transparent Web Cache Server Origin Server Client Http Request Average Response Time Delay Effect Transmission Medium Transparent Web Cache Different Parameter Local Cache Store
Content Type	Text
Resource Type	Article

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