Reasons not to Parallelize TCP Connections for Fast Long-Distance Networks

摘要

For utilizing fast long-distance networks effectively, parallel TCP was proposed, and has been employing. However, as high-speed transport-layer protocols appear, it is necessary to reinvestigate the performance of parallel TCP. In this paper, we use mathematical analysis to explore its performance. Analysis results show that the open issue of choosing the number of TCP connections is difficult to be solved in practice. Despite the mechanism that adjusts the number of TCP connections during data transfer is proposed, some potential problems still remain. In contrast, it is a better choice to use high-speed TCP in your future applications.