Cross-stratum orchestration and flexgrid optical networks for data center federations

@article{Velasco2013CrossstratumOA,
  title={Cross-stratum orchestration and flexgrid optical networks for data center federations},
  author={Luis Velasco and Adrian Asensio and Alberto Castro and Josep Lluis Berral and David Carrera and V{\'i}ctor L{\'o}pez and Juan P. Fern{\'a}ndez Palacios},
  journal={IEEE Network},
  year={2013},
  volume={27},
  pages={23-30}
}
Current inter-data-center connections are configured as static big fat pipes, which entails large bit rate over-provisioning and thus high operational costs for DC operators. On the other hand, network operators cannot share such connections between customers, because DC traffic varies greatly over time. Those connections are used to perform virtual machine migration and database synchronization among federated DCs, allowing elastic DC operations. To improve resource utilization and save costs… CONTINUE READING
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