Network delay inference from additive metrics

  • Authors:
  • Shankar Bhamidi;Ram Rajagopal;Sébastien Roch

  • Affiliations:
  • Department of Statistics, UNC, Chapel Hill, North Carolina;Department of EECS, UC Berkeley, California;Department of Mathematics, UC Los Angeles, California

  • Venue:
  • Random Structures & Algorithms
  • Year:
  • 2010

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Abstract

We use computational phylogenetic techniques to solve a central problem in inferential network monitoring. More precisely, we design a novel algorithm for multicast-based delay inference, that is, the problem of reconstructing delay characteristics of a network from end-to-end delay measurements on network paths. Our inference algorithm is based on additive metric techniques used in phylogenetics. It runs in polynomial time and requires a sample of size only poly(log n). We also show how to recover the topology of the routing tree. © 2010 Wiley Periodicals, Inc. Random Struct. Alg., 2010