The Design And Implementation Of Data Service Platform Based On Protocol Parsing

With the deployment of 3G and NGN, the efficiency of transportation of networks has been enhanced extremely. The data service now has new trend, which focus on the 3 mergence: the mergence of mobile data service and fixed network data service; the mergence of the mobile data service and Internet; the mergence of data service and voice service. With new trend, operators must take into consideration the building of service platform and support platform when they design the 3G mobile networks and core networks. Only this can they be a leader in the new coming 3G times.The order was to build a data service platform which had stronger ability of service and accounting.The data service platform (Service Proxy) provides service agency and accounting functions. The service agency chiefly judges whether users are entitled to access a content server or not, in other words, whether users have an order relation with the content server or not. If not ordered, it occurs to redirect to provide the order interface for users. The charging part includes the flow statistics and service access statistics.In the realization of Service Proxy, we completed the request analysis, got the document of request, and completed the global design and detailed design, generated design specifications, and ultimately achieved the platform. Our task included data packets obtained by Netfilter framework, HTTP protocol parsing, client information obtained by RADIUS protocol from AAAServer, business rules matching and statistics.