Cost-Efficient Virtual Optical Network Embedding for Manageable Inter-Data-Center Connectivity

Provided by: ETRI
Topic: Mobility
Format: PDF
Network virtualization opens the door to novel infrastructure services offering connectivity and node manageability. In this paper, the authors focus on the cost-efficient embedding of on-demand virtual optical network requests for interconnecting geographically distributed data centers. They present a mixed integer linear programming formulation that introduces flexibility in the virtual-physical node mapping to optimize the usage of the underlying physical resources. Illustrative results show that flexibility in the node mapping can reduce the number of add-drop ports required to serve the offered demands by 40%.

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