Design And Implementation Of Security Testing System Of SIP Protocol In Next Generation Network

In the new situation of telecommunications, control of the market opening, competition between carriers increasing, the explosive growth of data traffic and user demand for multimedia services and mobile nature of demand growth, exacerbate the NGN (next generation network) development and evolution. The networks of telecommunication are changing from PSTN to IP network, which is the open-ended of network architecture. The network security and manageability of telecommunication network have been posed a serious challenge.In the course of evolution which is the network changing from telecommunication network to the Next Generation Network, the security of the network becomes more and more important. We can analyze the security threaten at several aspect such as the system of network, Network Element, the implement of protocol, management. Analyzing the implement of protocol running on the equipment of network is one of the most important way to testing the security of network. So, the security of testing of SIP which is one of the core protocols in NGN is very important to the security of The Next Generation Network.Firstly, in the paper, there principally analyses and research SIP. In addition, on the research of SIP, we present the model of the SIP protocol security testing. Secondly, there mainly introduce the theory of testing science and the methods of protocol testing and the standard,realization and performance of that. Then comparing the languages, which describe the test suit, and a description language is designed specifically to describe the SIP test suite. In the end, expatiate the design and realize of testing tools of Session Initiation Protocol.