Research On Broadband Dynamic Intelligent Acceleration Based On DPI

As the CMNET network advancing on communication technology,the user scale is showing a dramatic increase.In August 2013,the state council also upgraded the "broadband strategy" into a national strategy driven by the soaring requirements of users.It is an urgent strategic requirement to break through the bottleneck restricting the development of broadband industry.Building high-quality wired broadband,accelerate the construction of "Internet plus" infrastructure,promote the rapid development of "broadband China" as well as promoting the coordinated development of cloud computing,Io Ts and big data industries have become a national development strategy and social responsibility for telecom companies.In the state of the art of CMNET access network,users access the OLT through optical box directly,and then up to the BRAS.It is of great significance to ensure the security of the access network of OLT and reduce the services interruption caused by single point failure.However,fixed broadband is adopted for user access,i.e.,bandwidth adjustment is not flexible,which make it difficult to meet the polymorphic services.To solve the mentioned problem,a dynamic intelligent speed-raising scheme based on the DPI(Deep Packet Inspection)system is proposed in this paper,and it is further deployed in the network of Chongqing for performance evaluation.The behaviors of users are recorded through the DPI system and the interaction among DPI system,RADIUS system and AAA system has been carried out to differentiate user services when accessing different address.At the same time,the DPI system,RADIUS system and AAA system have achieved to generate Qo S mark and throughput limiting template dynamically.Moreover,the proposed approach is capable of perceiving the popularity of service in local area,which makes it possible for providing service guaranteed by dynamic intelligence.This paper concentrates on the existing weak points of network security,the solutions to ensure the security of the entire operating CMNET network is elaborated from two aspects----network service security and network data security.