高速长距离网络传输协议

Transport Protocols for Fast Long Distance Networks

传统的TCP传输协议在高速长距离网络中存在许多局限,其传输性能不能满足日益增长的海量数据传输应用的需求.UDP传输协议尽管传输速率很高,却没有可靠性保证.分析了传统的传输协议在高速长距离网络中的局限,分类总结了近年来提出的各种改进的传输协议的主要设计思想以及在传输协议性能评价方面的工作,最后提出了目前研究中仍然存在的开放性问题和进一步的研究方向.

The traditional TCP transport protocol has many drawbacks on Fast Long Distance Networks （FLDnet）, and its transfer performance can not satisfy the requirement of increasing bulk data transfer applications. The UDP transport protocol has high transfer speed on FLDnet, but its reliability can not be guaranteed. This paper firstly analyzes the drawbacks of the traditional transport protocols on FLDnet, then, classifies and summarizes the main design principles of all kinds of enhanced transport protocols proposed in recently years and the research work on performance evaluation of transport protocols. Finally, some open issues and further research directions are proposed.