Content Routing with Network Support Using Passive Measurement in Content Distribution Networks

Hirokazu MIURA, Miki YAMAMOTO

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Summary :

In content distribution networks (CDNs), the content routing which directs user requests to an adequate server from the viewpoint of improvement of latency for obtaining contents is one of the most important technical issues. Several information, e.g. server load or network delay, can be used for content routing. Network support, e.g. active network, enables a router to select an adequate server by using these information. In the paper, we investigate a server selection policy of a network support approach from the viewpoint of which information to be used for effective server selection. We propose a server selection policy using RTT information measured at a router. Simulation results show that our proposed server selection policy in content routing selects a good server under both conditions where server latency and network delay is a dominant element of user response time. Furthermore, we also investigate about location of routers with network support bringing good performance for our proposed scheme.

Publication
IEICE TRANSACTIONS on Communications Vol.E86-B No.6 pp.1805-1811
Publication Date
2003/06/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Content Delivery Networks)
Category
Content Routing and Server Selection

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