A Study on Two New Protection Strategies

Authors:
Alfred Bashllari;Dritan Nace
Affiliations:
Laboratoire Heudiasyc UMR CNRS 6599, Université de Technologie de Compiègne, Compiègne Cedex, France 60205;Laboratoire Heudiasyc UMR CNRS 6599, Université de Technologie de Compiègne, Compiègne Cedex, France 60205
Venue:
IPOM '08 Proceedings of the 8th IEEE international workshop on IP Operations and Management
Year:
2008

Citing 2
Cited 0

Routing, Flow, and Capacity Design in Communication and Computer Networks

Routing, Flow, and Capacity Design in Communication and Computer Networks
Demand-wise Shared Protection for Meshed Optical Networks

Journal of Network and Systems Management

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Abstract

In this paper we propose two new protection strategies based on the end-to-end survivability concept. The first one, called Shared Protection Robust Routing (SPRR) strategy can be seen as a generalized version of end-to-end rerouting with stub release. Numerical tests give encouraging performances for this scheme in comparison to the conventional end-to-end rerouting ones. However, as expected, it requires a higher (still not excessive) number of routes comparing to conventional schemes. A new, slightly different, scheme, called Elastic Robust Routing (ERR) strategy is provided next. Computational results for realistic network instances provide a comparison of both protection strategies and end-to-end rerouting with stub release in terms of overall network cost.