Virtual Slice Assignment in Large-Scale Cloud Interconnects

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Abstract:

Software-defined networking is an emerging method providing flexible and scalable network connectivity in both intra and inter datacenter interconnects with regard to various requirements, such as traffic-aware, QoS, energy efficiency and renewable power intermittency. This paper investigates issues and solutions for software-defined planning a virtual slice involving multiple virtual machines (VMs) with interdependent constraints spanning a network of distributed datacenters. A flexible and optimized virtual slice assignment allows addressing a class of large-scale cloud computing services. Simulations on large-scale testbeds, such as the GreenStar Network and the Green Telco Cloud showed that the proposed model achieves better performance than the coordinated mapping model in terms of flexibility and energy efficiency.