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Availability-aware service provisioning in SD-EON-based inter-datacenter networks

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Abstract

The tremendous transmission capacity and flexible spectrum allocation scheme make elastic optical networks (EONs) one of the most promising infrastructures for constructing the interconnection in datacenter (DC) networks. Meanwhile, as DC traffics exhibit highly dynamic and heterogeneous features, differentiated service provisioning schemes are desired. In this paper, we take the advantage of centralized network control and management provided by the software-defined elastic optical networks (SD-EONs) and investigate availability-aware service provisioning in SD-EON-based inter-datacenter (inter-DC) networks. We first describe the problem of availability-aware service provisioning in SD-EON-based inter-DC networks and present the theoretical analysis for service availability. Then, we propose an availability-aware service provisioning algorithm (ASP) that leverages different path protection schemes to satisfy different service availability requirements. A service downgrading (SD) strategy is also designed as a supplement of ASP to further improve its performance. Simulation results show that the proposed ASP-SD algorithm can effectively improve the spectrum efficiency without sacrificing availability.

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Acknowledgments

This work was supported in part by the NSFC Project 61371117, the Fundamental Research Funds for the Central Universities (WK2100060010), Natural Science Research Project for Universities in Anhui (KJ2014ZD38), and the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA06011202).

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Correspondence to Zuqing Zhu.

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Chen, X., Ji, F., Zhu, S. et al. Availability-aware service provisioning in SD-EON-based inter-datacenter networks. Photon Netw Commun 31, 543–549 (2016). https://doi.org/10.1007/s11107-015-0542-y

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  • DOI: https://doi.org/10.1007/s11107-015-0542-y

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