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Elastic optical networking (EON), with its flexible use of the optical spectrum, is a promising solution for future metro/core optical networking. For the deployment of EON in a real-operational scenario, the dynamic lightpath restoration, driven by an intelligent control plane, is a necessary network function. Dynamic restoration can restore network services automatically and, thus, greatly reduce...
We present OpenFlow-enabled dynamic restoration in elastic optical networks, detailing the restoration framework and algorithm, failure isolation mechanism, OpenFlow protocol extensions, and quantitatively presenting the restoration performance via the experimental validation on the Global Environment for Network Innovations (GENI) testbed.
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