Abstract
This paper proposes a novel Differentiated Domain Protection (DDP) algorithm to address survivability in multi-domain optical networks. In order to ensure the principle of transparent management in multi-optical domains, DDP abstracts the multi-domain optical networks to Virtual Topology Graph (VTG) to solve the inter-domain routing. In order to satisfy the survivable requirements of different domains, DDP considers the differentiated protection in different domains. Compared with traditional algorithms, DDP not only has the performance trade-off ability but also has the better resource utilization ratio. Simulation results are shown to be promising.
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