An architecture of policy-based application-aware network QoS management for large-scale heterogeneous networks

With the rapid growth of networks in scalability and complexity, it is increasingly hard to manage network resources to provide QoS-guaranteed services as demanded. In this paper, we propose a Policy-based Application-aware Network QoS Management architecture for grid environment. First, application QoS requirements can be caught by Grid Supporting Middleware; they will then be decomposed by domain, translated into technique policies in Policy Engine, and enforced through real QoS guarantee mechanisms; finally, QoS Monitor will collect network runtime information, monitor, report, and, if necessary, modify the policy translation process through a real-time feedback mechanism, so as to achieve adaptability and application-awareness of network QoS management. The author illustrates a case of the aforementioned architecture as well.