PreeN: improving steady-state performance of ISP-Friendly p2p applications

  • Authors:
  • S. M. Saif Shams;Paal E. Engelstad;Amund Kvalbein

  • Affiliations:
  • Simula Research Laboratory, Norway;Simula Research Laboratory, Norway;Simula Research Laboratory, Norway

  • Venue:
  • ICDCN'12 Proceedings of the 13th international conference on Distributed Computing and Networking
  • Year:
  • 2012

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Abstract

Much effort has been put into making P2P applications ISP-friendly, i.e. finding a solution that reduces inter-ISP traffic while maintaining the high file-sharing efficiency of existing P2P applications. Related works have analyzed different ISP-friendly P2P solutions by simulations. However, most of these simulation models have two common assumptions; 1) the peer arrival process follows a flash-crowd scenario, 2) the distribution of peers follows a uniform distribution. Most of the time, both these assumptions are not true for a P2P network. In this paper we show that the peer arrival process and the distribution of peers have a significant effect on the simulation results. We also show that solutions perform differently, e.g. in terms of the amount of inter-ISP traffic and download time, in a flash crowd scenario than in a steady state, limiting the applicability of the results and conclusions reported in previous works. Based on this new insight, we propose a Preemptive Neighbor Selection (PreeN) that makes an ISP-friendly P2P application efficient in steady state scenarios. abstract environment.