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- W2890601616 abstract "Decentralized orchestration of the control plane is critical to the scalability and reliability of software-defined network (SDN). However, existing orchestrations of SDN are either one-off or centralized, and would be inefficient the presence of temporal and spatial variations in traffic requests. In this paper, a fully distributed orchestration is proposed to minimize the time-average cost of SDN, adapting to the variations. This is achieved by stochastically optimizing the on-demand activation of controllers, adaptive association of controllers and switches, and real-time request processing and dispatching. The proposed approach is able to operate at multiple timescales for activation and association of controllers, and request processing and dispatching, thereby alleviating potential service interruptions caused by orchestration. A new analytic framework is developed to confirm the asymptotic optimality of the proposed approach in the presence of non-negligible signaling delays between controllers. Corroborated from extensive simulations, the proposed approach can save up to 73% the time-average operational cost of SDN, as compared to the existing static orchestration." @default.
- W2890601616 created "2018-09-27" @default.
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- W2890601616 date "2018-12-01" @default.
- W2890601616 modified "2023-10-17" @default.
- W2890601616 title "Multi-Timescale Decentralized Online Orchestration of Software-Defined Networks" @default.
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- W2890601616 doi "https://doi.org/10.1109/jsac.2018.2871310" @default.
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