Evaluation of Integration Effect of Content Location and Request Routing in Content Distribution Networks

Abstract

Abstract.Recently the content distribution networks (CDNs) are highlighted as the new network paradigm which can improve latency for Web access. In CDNs, the content location strategy and request routing techniques are important technical issues. Both of them should be used in an integrated manner in general, but CDN performance applying both these technologies has not been evaluated in detail. In this paper, we investigate effect of integration of these techniques. For request routing, we focus on a request routing technique applied active network technology, Active Anycast, which improves both network delay and server processing delay. For content distribution technology, we propose a new strategy, Popularity-Probability, whose aim corresponds with that of Active Anycast. Performance evaluation results show that integration of Active Anycast and Popularity-Probability provides robust CDNs.

Multi-path Routing Policy for Distributed Caching System

“…Ni et al [13] analyzed the corresponding CDN performance and routing overhead between multi-clusters. Miura et al [14] proposed Active Anycast, a request routing technique for applied active network technology, to improve either network delay or server processing delay.…”