On the Resiliency of Randomized Routing Against Multiple Edge Failures

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Researchers

  • Marco Chiesa
  • Andrei Gurtov

  • Aleksander Madry
  • Slobodan Mitrović
  • Ilya Nikolaevskiy
  • Michael Shapira
  • Scott Shenker

Research units

  • Universite Catholique de Louvain
  • Massachusetts Institute of Technology
  • Swiss Federal Institute of Technology Lausanne
  • Hebrew University of Jerusalem
  • University of California at Berkeley

Abstract

We study the Static-Routing-Resiliency problem, motivated by routing on the Internet: Given a graph G = (V, E), a unique destination vertex d, and an integer constant c > 0, does there exist a static and destination-based routing scheme such that the correct delivery of packets from any source s to the destination d is guaranteed so long as (1) no more than c edges fail and (2) there exists a physical path from s to d? We embark upon a study of this problem by relating the edge-connectivity of a graph, i.e., the minimum number of edges whose deletion partitions G, to its resiliency. Following the success of randomized routing algorithms in dealing with a variety of problems (e.g., Valiant load balancing in the network design problem), we embark upon a study of randomized routing algorithms for the Static-Routing-Resiliency problem. For any k-connected graph, we show a surprisingly simple randomized algorithm that has expected number of hops O(|V|k) if at most k-1 edges fail, which reduces to O(|V|) if only a fraction t of the links fail (where t < 1 is a constant). Furthermore, our algorithm is deterministic if the routing does not encounter any failed link.

Details

Original languageEnglish
Title of host publication43rd International Colloquium on Automata, Languages, and Programming (ICALP 2016)
EditorsIoannis Chatzigiannakis, Michael Mitzenmacher, Yuval Rabani, Davide Sangiorgi
Publication statusPublished - 2016
MoE publication typeA3 Part of a book or another research book
EventInternational Colloquium on Automata, Languages, and Programming - Rome, Italy
Duration: 12 Jun 201615 Jun 2016
Conference number: 43

Publication series

NameLeibniz International Proceedings in Informatics
Volume55
ISSN (Electronic)1868-8969

Conference

ConferenceInternational Colloquium on Automata, Languages, and Programming
Abbreviated titleICALP
CountryItaly
CityRome
Period12/06/201615/06/2016

    Research areas

  • Arborescenses, Connectivity, Randomized, Resilience, Routing

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