| Summary: | 碩士 === 國立中央大學 === 資訊工程研究所 === 91 ===
Internet and mobile phone have played important roles in human’s life. The service provided over them has become more variously. From ISP (Internet Service Provider) and telecommunication operators’ perspectives, how to manage numerous users has become a major problem in the deployment of the Internet. In order to meet this requirement, IETF has proposed AAA protocol to solve the problem.
Mobile IP is also a hot research area recently. Adding AAA server into the mobile network and integrating the registration procedures with AAA server can enhance the security of mobile network and even gather the information of resource used by users for charging.
In the thesis, performance of the AAA server in an integration of mobile network and AAA mechanism will be examined. After examination of the performance of the AAA server, two lower grade servers model are proposed to replace the original one, they are authentication server and accounting server, respectively. Experimental results for single AAA server and two separate servers (one for authentication and the other one for accounting) are examined through simulation to compare their performance.
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