During the past few years, gird technology has gained a rapid progress in E-Science, E-education, etc. All these typical
grid applications are involved with huge data transacting and collaborating that need a more capable network
infrastructure with sufficient bandwidth provisioning and high QOS guarantee other then the traditional Internet. Thus
gives birth to the concept of Grid-enabled Optical Network (Optical Grid), which mainly orients to the data-intensive
applications. In this paper, we give a vivid definition to Optical Grid, expound the most distinguished characteristics of it,
propose a novel SOA-based architecture for it, and then introduce a fast and flexible restoration mechanism, named DIR,
based on mature RSVP-TE for its control plane to support data-intensive grid applications, then make a deep analysis
and illustration on the proposed mechanism, finally draw a conclusion that the DIR mechanism can achieve much rapid
service recovery speed thus be very applicable for the distributed grid environment.
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