Software Defined Survivable Optical Interconnects for Data Centers
Sonali Chandna, Nabil Naas, Hussein Talaat Mouftah · 2017
Extending the notion of Software Defined Network (SDN) from packet switching in Layers 2 and 3 to circuit switching in transport layer for service providers is a promising scenario to meet the high burstiness and high bandwidth requirements. For service providers to have a multilayer, multi-domain controller, which can provide automated controller based restoration and protection even in unprotected links in the multi-administrative domain can evince as a promising solution. With this approach, service providers can assure to provide guaranteed Service Level Agreement (SLA) maintenance with optimum use of bandwidth, high availability and reduced error performance. In this paper, we propose a novel Software Defined Survivable Optical Interconnects (SDSOI) architecture for Data Centers (DCs). The feasibility of this architecture is demonstrated using Open Network Operating System (ONOS) as the SDN controller and building a day-night scheduling application on top of it. This application guarantees on-demand bandwidth as well as optimum bandwidth utilization in accord with the calendar. We also demonstrate a survivability technique for these interconnects.