Analysis of RBQ: a new cooperative web caching mechanism that adapts to link congestion

Eugenio M. de la Rosa; John H. Hartman; Terril Hurst

doi:10.1117/12.510955

8 August 2003 Analysis of RBQ: a new cooperative web caching mechanism that adapts to link congestion

Eugenio M. de la Rosa, John H. Hartman, Terril Hurst

Proceedings Volume 5244, Performance and Control of Next-Generation Communications Networks; (2003) https://doi.org/10.1117/12.510955
Event: ITCom 2003, 2003, Orlando, Florida, United States

Abstract

A new Web proxy cooperation model is introduced and analyzed that preserves advantages of cooperative caching in the presence of proxy link capacity variations. The Restricted Broadcast Query (RBQ) cooperation model uses a score table containing dynamic information that describes proxy connectivity. This information is used to re-distribute load among proxies, thereby compensating for changes in link capacities. An analytic model was developed to evaluate network congestion effects on alternative Web proxy cooperation mechanisms (CMs). The model was applied to a system of identical, fully connected proxies, in order to compare the performance of two common CMs (Broadcasting and URL-hashing) with that of RBQ.

Citation Download Citation

Eugenio M. de la Rosa, John H. Hartman, and Terril Hurst "Analysis of RBQ: a new cooperative web caching mechanism that adapts to link congestion", Proc. SPIE 5244, Performance and Control of Next-Generation Communications Networks, (8 August 2003); https://doi.org/10.1117/12.510955

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