Multi-Tenant Software-Defined Hybrid Optical Switched Data Centre

Shuping Peng, Bingli Guo, Chris Jackson, Reza Nejabati, Fernando Agraz, Salvatore Spadaro, Giacomo Bernini, Nicola Ciulli, Dimitra Simeonidou

Research output: Contribution to journalArticle (Academic Journal)peer-review

27 Citations (Scopus)


We introduce a holistic solution for software-defined optical data centres (DC). Hybrid optical circuit/packet switching technologies are employed in the data plane, while a software-defined networking (SDN) controller based on OpenDaylight with significant extensions is adopted for the data centre network (DCN) control and management. Novel functional modules in the SDN controller together with its northbound (NBI) and southbound interfaces (SBI) are designed and developed. The OpenFlow protocol is extended at the SBI to support communication between the extended OpenDaylight SDN controller and the optical DCN devices. Over the NBIs, DC applications and the cloud management system directly interact with the optical DCN. A virtual data centre (VDC) application is designed and developed that dynamically creates and provisions multiple coexisting but isolated VDCs. An optical network-Aware virtual machine (VM) placement method is proposed and implemented for a single-step deployment of both network and IT (VM) resources to accommodate the VDC requests. The VDC deployment process is extensively simulated and experimentally demonstrated.

Original languageEnglish
Article number7114198
Pages (from-to)3224-3233
Number of pages10
JournalJournal of Lightwave Technology
Issue number15
Early online date1 Jun 2015
Publication statusPublished - 1 Aug 2015


  • Data Centre Virtualisation
  • Multi-Tenancy
  • Optical Data Centre Network (DCN)
  • Software-Defined Networking (SDN)
  • Virtual Data Centre (VDC)


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