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IEICE TRANSACTIONS on Communications

A Proposal of Dual Zipfian Model for Describing HTTP Access Trends and Its Application to Address Cache Design

Masaki AIDA, Noriyuki TAKAHASHI, Tetsuya ABE

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Summary :

This paper proposes the Dual Zipfian Model addressing how to describe HTTP access trends in large-scale data communication networks, and discusses how to design the capacity of address cache tables in an edge router of the networks. We show that destination addresses of packets can be characterized by two types of Zipf's law. Fundamental concept of the Dual Zipfian Model is in complementary use of these laws, and we can derive the relationship between the number of accesses and the number of destination addresses. Experimental results show that the relation gives a good approximation. Applying this relation, we derive cache hit probabilities of the address cache table that incorporates high-speed address resolution. Using the probabilities, design issues including the capacity of the cache tables and aging algorithms of cache entries are also discussed.

Publication
IEICE TRANSACTIONS on Communications Vol.E81-B No.7 pp.1475-1485
Publication Date
1998/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
Category
Communication Software

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