Analysis and Applications of Internet Traffic Measurement

以下四个研究项目是本研究的结果和成果。(1)互联网流量数据存储库的设计与运行存储库系统必须保证安全，保护用户的隐私，并与被评估的流量数据相关联。在研究中，开发并实际运行了该存储库。(2)根DNS服务器流量分析捕获并分析了其中一个根DNS服务器（即日本的M-Root服务器）的流量模式。分析表明，来自非亚洲国家的访问量大于来自亚洲国家的访问量。(3)标签交换系统的标签数量评估根据实际流量数据，评估Internet中需要的标签数量。提出了该方法，并用实际交通数据对其进行了评价。(4)基于ipip的电话会议系统中数字视频传输的流量分析利用实际网络对IPSec功能的数字视频数据传输进行了评估。

The following four research items are the result and outcome of the proposed research.(1) Design and Operation of Repository for Internet Traffic DataThe repository system has to be secure and preserve the privacy of the users, associated with the evaluated traffic data. In the research, the repository has been developed and practically operated.(2) Traffic Analysis for Root DNS ServerThe traffic pattern at one of the root DNS server (i.e., M-Root Server in Japan) has been captured and analyzed. The analysis informs that the access from non-Asian country is larger then from Asian countries.(3) Label number evaluation for label switch systemUsing the actual traffic data, the required number of labels in the Internet is evaluated. The novel method is proposed and evaluated using the actual traffic data.(4) Traffic analysis for Digital Video transmission in teleconference system over IPDigital video data transmission using the IPSec function has been evaluated using the actual network.