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Preserving survivability during logical topology reconfiguration in WDM ring networks

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4 Author(s)
Lee, H. ; Dept. of Comput. Sci., George Washington Univ., DC, USA ; Choi, H. ; Subramaniam, S.S. ; Hyeong-Ah Choi

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.

Published in:

Parallel Processing Workshops, 2002. Proceedings. International Conference on

Date of Conference:

2002

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