User Access to Popular Data on the Internet and Approaches for IP Traffic Flow Optimization

  • Authors:
  • Gerhard Hasslinger;Franz Hartleb;Thomas Beckhaus

  • Affiliations:
  • T-Systems Enterprise Services GmbH, Darmstadt, Germany D-64295;T-Systems Enterprise Services GmbH, Darmstadt, Germany D-64295;Deutsche Telekom Netzproduktion GmbH, Darmstadt, Germany D-64295

  • Venue:
  • ASMTA '09 Proceedings of the 16th International Conference on Analytical and Stochastic Modeling Techniques and Applications
  • Year:
  • 2009

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Abstract

Content delivery networks (CDN) and peer-to-peer systems currently account for the transport of a major portion of the Internet traffic. We compare the efficiency of both approaches, which are based on overlay structures within the network (CDN) or on the terminals of the users (P2P). Random source selection schemes in peer-to-peer protocols often chose to download content from somewhere across the globe although it may be available in the proximity, which leads to unnecessary high traffic load on inter-domain links. For content delivery networks, the distances from source to destination depend on the number and locations of servers involved in the CDN. Recent proposals to improve local exchange of popular data in the Internet are discussed with different implications for network resource efficiency, service provisioning and usage.