Cost-efficient virtual optical network embedding for manageable inter-data-center connectivity

Journal ar
ETRI Journal
  • Volumen: 35
  • Número: 1
  • Fecha: 01 February 2013
  • Páginas: 142-145
  • ISSN: 12256463 22337326
  • Source Type: Journal
  • DOI: 10.4218/etrij.13.0212.0271
  • Document Type: Article
Network virtualization opens the door to novel infrastructure services offering connectivity and node manageability. In this letter, we focus on the cost-efficient embedding of on-demand virtual optical network requests for interconnecting geographically distributed data centers. We 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%. © 2013 ETRI.

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