Optimal oblivious routing in polynomial time

Yossi Azar, Edith Cohen*, Amos Fiat, Haim Kaplan, Harald Räcke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A recent seminal result of Räcke is that for any undirected network there is an oblivious routing algorithm with a polylogarithmic competitive ratio with respect to congestion. Unfortunately, Räcke's construction is not polynomial time. We give a polynomial time construction that guarantees Räcke's bounds, and more generally gives the true optimal ratio for any (undirected or directed) network.

Original languageEnglish
Pages (from-to)383-394
Number of pages12
JournalJournal of Computer and System Sciences
Issue number3 SPEC. ISS.
StatePublished - Nov 2004


  • Communication networks
  • Oblivious ratio
  • Oblivious routing


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