Efficient epidemic multicast in heterogeneous networks

  • Authors:
  • José Pereira;Rui Oliveira;Luís Rodrigues

  • Affiliations:
  • University of Minho;University of Minho;University of Lisbon

  • Venue:
  • OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
  • Year:
  • 2006

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Abstract

The scalability and resilience of epidemic multicast, also called probabilistic or gossip-based multicast, rests on its symmetry: Each participant node contributes the same share of bandwidth thus spreading the load and allowing for redundancy On the other hand, the symmetry of gossiping means that it does not avoid nodes or links with less capacity Unfortunately, one cannot naively avoid such symmetry without also endangering scalability and resilience In this paper we point out how to break out of this dilemma, by lazily deferring message transmission according to a configurable policy An experimental proof-of-concept illustrates the approach.