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Optical Grids are widely deployed to solve complex problems the authors are facing today. An important aspect of the supporting network is resiliency i.e. the ability to overcome network failures. In contrast to classical network protection schemes, they will not necessarily provide a back-up path between the source and the original destination. Instead, they will try to relocate the job to another server location if this means that they can provide a backup path which comprises less wavelengths than the one the traditional scheme would suggest. This relocation can be backed up by the Grid specific anycast principle: a user generally does not care where his job is executed and is only interested in its results.
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