Connectivity Requirements for Cloud-Based Services

The expected explosion of services offered in the cloud has revealed new paradigms in telecommunication networks and motivated research to satisfy the needs arising. Interconnection between facilities hosting computing resources or between computing resources and end-users may require service-specific Service Level Agreement (SLA) parameters. In this paper, we study the minimum connectivity requirements that transport networks need to satisfy to support cloud services and we map relevant Key Performance Indicators (KPIs) to them. Three clearly differentiated cloud-based scenarios are studied: datacenter (DC) interconnection in DC federations, live-TV distribution, and Cloud-Radio Access Networks (C-RAN) to support next generation mobile networks.