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Diverse routing in networks with probabilistic failures

Author(s)
Modiano, Eytan H.; Lee, Hyang-Won
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
We develop diverse routing schemes for dealing with multiple, possibly correlated, failures. While disjoint path protection can effectively deal with isolated single link failures, recovering from multiple failures is not guaranteed. In particular, events such as natural disasters or intentional attacks can lead to multiple correlated failures, for which recovery mechanisms are not well understood. We take a probabilistic view of network failures where multiple failure events can occur simultaneously, and develop algorithms for finding diverse routes with minimum joint failure probability. Moreover, we develop a novel Probabilistic Shared Risk Link Group (PSRLG) framework for modeling correlated failures. In this context, we formulate the problem of finding two paths with minimum joint failure probability as an Integer Non-Linear Program (INLP), and develop approximations and linear relaxations that can find nearly optimal solutions in most cases.
Date issued
2009-06
URI
http://hdl.handle.net/1721.1/58793
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Journal
IEEE INFOCOM 2009
Publisher
Institute of Electrical and Electronics Engineers
Citation
Hyang-Won Lee, and E. Modiano. “Diverse Routing in Networks with Probabilistic Failures.” INFOCOM 2009, IEEE. 2009. 1035-1043. © 2010 Institute of Electrical and Electronics Engineers.
Version: Final published version
Other identifiers
INSPEC Accession Number: 10685511
ISBN
978-1-4244-3512-8
ISSN
0743-166X
Keywords
disjoint path protection, diverse network routing, integer nonlinear program, intentional attacks, natural disasters, probabilistic failures, probabilistic shared risk link group

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