Evaluation of integration effect of content location and request routing in content distribution networks

  • Authors:
  • Hirokazu Miura;Miki Yamamoto

  • Affiliations:
  • Faculty of Systems Engineering, Wakayama University, Wakayama, Japan;Graduate School of Engineering, Osaka University, Suita-shi, Osaka, Japan

  • Venue:
  • IWAN'04 Proceedings of the 6th IFIP TC6 international working conference on Active networks
  • Year:
  • 2004

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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.