东南大学学报（英文版）2006，Vol.22Issue(1)：43-47,5.
AMS-02地面传输系统
Ground data transfer research in AMS-02
摘要
Abstract
To increase the performance of bulk data transfer mission with ultra-long TCP ( transmission control protocol) connection in high-energy physics experiments, a series of experiments were conducted to explore the way to enhance the transmission efficiency. This paper introduces the overall structure of RC@ SEU (regional center @ Southeast University) in AMS (alpha magnetic spectrometer)-02 ground data transfer system as well as the experiments conducted in CERNET (China Education and Research Network)/CERNET2 and global academic Internet. The effects of the number of parallel streams and TCP buffer size are tested. The test confirms that in the current circumstance of CERNET, to find the right number of parallel TCP connections is the main method to improve the throughput. TCP buffer size tuning has little effect now, but may have good effects when the available bandwidth becomes higher.关键词
海量数据传输/效率/TCP缓冲/并行流/IPv6Key words
bulk data transfer/performance/TCP buffer size/parallel stream/IPv6分类
信息技术与安全科学引用本文复制引用
吴桦,龚俭,周渔..AMS-02地面传输系统[J].东南大学学报（英文版）,2006,22(1):43-47,5.基金项目
The National Basic Research Program of China (973Program) (No. 2003CB314803). （973Program）
