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Diverse routing based on shared risk link groups

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4 Author(s)
Moritz Kiese ; Institute of Communication Networks, Technische Universität München, Arcisstraße 21, 80290 Munich, Germany ; Velislava Marcheva ; Jörg Eberspächer ; Dominic Schupke

This paper investigates the diverse routing problem in the presence of shared risk link groups (SRLGs) and proposes two ILP models for partial SRLG-disjoint protection based on grouping of the individual SRLGs in classes. We demonstrate our approach with SRLGs constructed from seismic maps, hence reducing the likelihood of a single earthquake affecting large portions of the network. Compared with the traditional diverse routing, our two models provide higher survivability with no increase in the overall routing cost, measured in terms of the total number of edges used.

Published in:

Design of Reliable Communication Networks, 2009. DRCN 2009. 7th International Workshop on

Date of Conference:

25-28 Oct. 2009