Packet doppler: network monitoring using packet shift detection

  • Authors:
  • Tongqing Qiu;Jian Ni;Hao Wang;Nan Hua;Y. Richard Yang;Jun Jim Xu

  • Affiliations:
  • Georgia Inst. of Technology;Yale University;Yale University;Georgia Inst. of Technology;Yale University;Georgia Inst. of Technology

  • Venue:
  • CoNEXT '08 Proceedings of the 2008 ACM CoNEXT Conference
  • Year:
  • 2008

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Abstract

Due to recent large-scale deployments of delay and loss-sensitive applications, there are increasingly stringent demands on the monitoring of service level agreement metrics. Although many end-to-end monitoring methods have been proposed, they are mainly based on active probing and thus inject measurement traffic into the network. In this paper, we propose a new scheme for monitoring service level agreement metrics, in particular, delay distribution. Our scheme is passive and therefore will not cause perturbation to real traffic. Using realistic delay and traffic demands, we show that our scheme achieves high accuracy and can detect burst events that will be missed by probing based methods.