Proceedings. International Conference on Parallel Processing Workshop (2002)

Vancouver, B.C., Canada

Aug. 18, 2002 to Aug. 21, 2002

ISSN: 1530-2016

ISBN: 0-7695-1680-7

pp: 224

Hwajung Lee , The George Washington University

Hongsik Choi , The George Washington University

Suresh Subramaniam , The George Washington University

Hyeong-Ah Choi , The George Washington University

ABSTRACT

We consider the design of reconfiguring logical topologies over physical WDM ring networks. The logical topology consists of the same set of nodes as the physical topology, and the links of the logical topology are lightpaths established (or embedded) over the physical topology. The logical topology is said survivable if the failure of any single physical link does not disconnect the logical topology. In this paper, we consider the following problem. Given a logical topology with its survivable embedding over a physical ring network and a new logical topology to be reconfigured, find a sequence of lightpaths additions and deletions satisfying the given wavelengths and ports constraints such that the logical topology remains survivable throughout the reconfiguration.

INDEX TERMS

Network Survivability, Wavelength Constraint, Reconfiguration Cost

CITATION

H. Choi, H. Choi, H. Lee and S. Subramaniam, "Preserving Survivability During Logical Topology Reconfiguration in WDM Ring Networks,"

*Proceedings. International Conference on Parallel Processing Workshop(ICPPW)*, Vancouver, B.C., Canada, 2002, pp. 224.

doi:10.1109/ICPPW.2002.1039734

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