Orchestrated SDN-based VDC provisioning over multi-technology optical data centre networks

©2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.In this paper, we describe some scenarios and technologies that have been proposed to cope with the requirements of current and next generation data centre infrastructure. In particular, we discuss the extensions that have been implemented at both orchestration and control levels to efficiently manage the data centres resources. We put the focus on the integration between the Orchestrator and the SDN Controller by describing the communication interfaces and their interaction to provision optimized Virtual Data Centres (VDC) instances over novel data centre infrastructure, with special mention to the different solutions adopted to manage multiple optical technologies at the data plane.Peer Reviewe