A model of QoS of the Internet based on scalable core

With the rapid development of the Internet,a series of architectures, which guarantee QoS, have been conceived. This paper discusses integrated services, differentiated services and other models, which are new architectures for guaranteeing the QoS. The characteristics of each model are compared and analyzed. Considering the influence of per flow state in networks on the quality of service, this paper puts forward a QoS model which provides a service with flexibility, scalability, robustness and better guarantee level. The model combines the virtue of integrated services and differentiated services. The implementing algorithm of the model is also presented.