Performance comparison between TCP Reno and TCP Vegas

Authors:
Yuan-Cheng Lai;Chang-Li Yao
Affiliations:
Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC;Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC
Venue:
Computer Communications
Year:
2002

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Abstract

This paper compares the performance, throughput and stability of Reno and Vegas in network environments with homogeneous and heterogeneous versions of TCP. Simulation results indicate that while TCP Vegas obtains a better throughput and stability in homogeneous cases than TCP Reno, the former performs poorly in heterogeneous cases, accounting for the reluctance among users to adopt it. Thus we propose a simple approach, parameter adjustment for Vegas, to solve this problem. This approach enables Vegas to achieve its fair share of bandwidth, even gaining an advantage over Reno, encouraging users to switch their TCP from Reno to Vegas.