A QoS Oriented Network Service Architecture for Grid Applications

Network service support to ensure quality of service (QoS) is a key requirement for many advanced grid applications, such as collaborative working or remote visualization which require more stringent traffic guarantees. In this paper, we present a novel QoS oriented service architecture which provides network resource scheduling service in large-scale network environment based on the service level agreement (SLA) conducted between service customers and service providers. It applies the updated service-oriented and policy translation structure with excellent expansibility and efficiency in the running process. The architecture contains six components: Application Monitor Service, SLA Management, Policy management, Service management, Feedback and Network QoS Service Support. In addition, the mapping of QoS parameters using policy is discussed. At the end of the paper, an application scenario is used to validate the design methodology and demonstrate the supporting function of architecture.