An implementation and experimental study of the adaptive PI rate control protocol

Authors:
Zhanliang Liu;Huan Wang;Wuhua Hu;Yang Hong;Oliver W. W. Yang;Yantai Shu
Affiliations:
School of Computer Science, Tianjin University, Tianjin, P. R. China;School of Computer Science, Tianjin University, Tianjin, P. R. China;School of Electrical & Electronic Engineering, Nanyang Technological University, Singapore;School of Information Technology & Engineering, University of Ottawa, Ontario, Canada;School of Information Technology & Engineering, University of Ottawa, Ontario, Canada;School of Computer Science, Tianjin University, Tianjin, P. R. China
Venue:
HPSR'09 Proceedings of the 15th international conference on High Performance Switching and Routing
Year:
2009

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Abstract

Adaptive PI Rate Control Protocol (API-RCP) has been proposed as an explicit congestion control mechanism [1]. In this paper, a Linux-based testbed is created to validate the features and performance of API-RCP. Various issues on implementing API-RCP in Linux kernel are addressed. There are two outcomes of our experimental results: a) Confirm that in practice API-RCP is as effective as the theory asserts in achieving a high and smooth sending rate, a small and smooth round trip time (RTT), an almost full link utilization and zero packet drop, and b) Demonstrate that API-RCP exhibits good robustness to varying network environment with changing flows or network delays. All these support that API-RCP is a very viable candidate in the real network implementations.