Research On Flexible Structure In Network Architecture

The current Internet architecture is built on a host-centric communication model that is suitable for early Internet information transmission needs.However,with the emergence and rapid growth of Internet applications and services,the adaptability,flexibility,scalability and other defects have become increasingly prominent,and the current network architecture cannot dynamically provides the required resources which according to the type of service.Therefore,how to provide a flexible and efficient network architecture for mass service has become a hotspot in network architecture.Aiming at the problems of scalability,flexibility and adaptability of Internet architecture,this paper proposes a service-oriented flexible network computing model,and further proposes the flexible scheduling algorithm of the model(FSA).The flexible management theory and agent technology are used to organize and manage the flexible network computing model to improve the intelligence,self-organization ability and management control ability of the network architecture.And according to the resource performance required by the service,such as computing ability,storage capacity and communication ability,the fuzzy theory is used to divide the network resources into different resource layers.And then use the fuzzy clustering method to cluster the resources that provide the similar services into different resource clusters in each resource layer to form the mapping mechanism between the network resources and the service.According to different demands on resources,different services will choose different resource clusters to narrow the scope of selection,and to provide strong support for the service-oriented dynamic evolution mechanism.The performance of the FSA algorithm and the traditional scheduling algorithm is analyzed to show that the FSA algorithm can effectively reduce the communication traffic in the system.In the case of different network resources and services,the FSA algorithm and Min-Min scheduling algorithm are simulated and compared.Finally,the simulation results show that the flexible network computing model has good flexibility and intelligence,and on the basis of effectively reducing the service execution time,the traffic of the system is further reduced and the network structure is dynamically responded to.