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Future Intelligent Optical Networks (IONs) are devised to support a wide variety of clients, each having their own reliability requirements, such as availability. These networks thus need to support differentiated recovery schemes fulfilling those requirements while achieving efficient network performance (e.g., resource usage). The authors specifically focus on Dedicated Path Protection (DPP) and Shared Path Protection (SPP) recovery within Generalized MultiProtocol Label Switching (GMPLS) all-optical networks. In this context, the standard GMPLS Open Shortest Path First - Traffic Engineering (OSPF-TE) protocol does not convey the required routing information in order to achieve a desirable network performance.
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