Research On Service Name Resolution Based On Service-oriented Network

With the idea of using the service ID as the waist of the Internet protocol stack,SOFIA aims at providing a solution to resolve the problems facing the current network.In this paper,researches on the service-oriented network service identification and resolution mechanisms have been made,and presents a two-layer service name resolution mechanism,including routing layer on the bottom and service layer on the top,based on SOFIA.First of all,the article describes the structured naming method in the routing layer.Each SD is constructed by a combination of different name components,which are separated by the symbol of backslash.This structured name is similar to the uniform resource locator of the Internet,which can reduce the large number of current service naming workload.The use of semantic names can also take the advantages of semantic polymerization,the computational work of forwarding routers in routing layer can be decreased by the content of service name;geographical cohesion can also lower the message transmission distance between the routers,significantly reduce the transmission delay and make the routing layer provide a fast response to a service name resolution request.The article also achieves a rapid resolution mechanism based on compressed Trie tree.Secondly,the article describes the service layer flatten naming method.By using hash algorithm to SID,each service also has a 160 bit long GSID as their global name.Through a horizontal comparison of DHT algorithms,the article chooses and implements the program of Kademlia algorithm as the core computing module of service layer flat name resolution mechanism according to the service layer routing features.Flat naming resolution mechanism utilize the robustness and load balancing features of DHT network to provide a stable service on service name resolving.At last,through analyzing the average one-way service name resolution time cost and the successful ratio,the framework of two-layer name resolution mechanisms performs better than the single structured name resolution mechanism or the single flat name resolution mechanism with the high probability of success in the service autonomous domain,and the simulation proves our analysis.