Quality of service provisioning for distributed data center inter-connectivity enabled by network virtualization

Today’s service platform or Cloud service models, such as Infrastructure-as-a-Service (IaaS), enable customers to deploy and execute applications on an on-demand available infrastructure. Such platforms reduce operational expenses for the service provider and lower the entry barrier for small and medium enterprises. However, current commercial solutions do not provide sufficient quality of service (QoS) guarantees for some applications. For example, they do not support various interactive real-time applications.In this paper, we introduce a way overcome these current Cloud service limitations. We show how to provide and guarantee quality of service requirements for resource networks within an IaaS framework.Our work has focused on methods for network resource management and flow control as well as QoS models. We have developed a framework that enables QoS support for real-time services executing within an IaaS environment.

► A new flow control concept to guarantee network QoS in an IaaS environment.
► For multiple concurrently deployed interactive real-time applications.
► And with different QoS demands on a shared transport medium.
► Mapping of service resource requirements on physical network demands.
► Methodology for creating an IaaS internal QoS class model.