Computing all the best swap edges distributively

  • Authors:
  • P. Flocchini;L. Pagli;G. Prencipe;N. Santoro;P. Widmayer;T. Zuva

  • Affiliations:
  • University of Ottawa, Canada;Università di Pisa, Italy;Università di Pisa, Italy;Carleton University, Canada;ETH, Zurich, Switzerland;University of Botswana, Gaborone

  • Venue:
  • OPODIS'04 Proceedings of the 8th international conference on Principles of Distributed Systems
  • Year:
  • 2004

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Abstract

In systems using shortest-path routing tables, a single link failure is enough to interrupt the message transmission by disconnecting one or more shortest path spanning trees. The on-line recomputation of an alternative path or of the entire new shortest path trees, rebuilding the routing tables accordingly, is rather expensive and causes long delays in the message's transmission [5, 10]. Hopefully, some of these costs will be reduced if the serial algorithms for dynamic graphs (e.g., those of [1]) could be somehow employed; to date, the difficulties of finding an e.cient distributed implementation have not been overcome (e.g., see [9]).