Cloud Resource Scheduling, Monitoring, and Configuration Management in the Software Defined Networking Era

In recent years, Cloud Computing has emerged as a major technology for delivering on-demand IT (Information Technology) services to consumers across the globe. It provides IT resources based on a pay-as-you model and offers a rich set of services and tools. The Cloud Computing stack consists of three layers – Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a service (SaaS). IaaS offers hardware resources (computation, network, and storage) as virtualized cloud services. PaaS provides software services (appliances) and programming tools, whereas SaaS provides ready to use application stacks.