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Proceedings Paper

Analysis of RBQ: a new cooperative web caching mechanism that adapts to link congestion
Author(s): Eugenio M. de la Rosa; John H. Hartman; Terril Hurst
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Paper 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.

Paper Details

Date Published: 8 August 2003
PDF: 11 pages
Proc. SPIE 5244, Performance and Control of Next-Generation Communications Networks, (8 August 2003); doi: 10.1117/12.510955
Show Author Affiliations
Eugenio M. de la Rosa, Optical Sciences Ctr./Univ. of Arizona (United States)
John H. Hartman, Univ. of Arizona (United States)
Terril Hurst, Hewlett-Packard Labs. (United States)


Published in SPIE Proceedings Vol. 5244:
Performance and Control of Next-Generation Communications Networks
Robert D. van der Mei; Frank Huebner, Editor(s)

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