Supported by the National Natural Science Foundation of China under Grant Nos.60273009, 90104002 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No 2003CB314804(国家重点基础研究发展规划(973));NSFC&RGC under Grant No.60218003(国家自然科学基金与香港研究资助局资助项目)
In the 21st century, Internet will be one of the most important infrastructures in information society. In this paper, the roadmap of Internet is reviewed, and the successful experience and failed lesson are summarized. From the point of view of application requirements, some essential attributes possessed by the new generation Internet are predicted and concluded, namely controllability, trustworthiness, and scalability, which are explained and discussed in detail. Finally, some thinking about methodology for study on the new generation Internet is introduced.