PABO: Mitigating congestion via packet bounce in data center networks

doi:10.1016/j.comcom.2019.04.002

	PABO: Mitigating congestion via packet bounce in data center networks
	Shi, Xiang 1,2,4; Wang, Lin 3,4; Zhang, Fa 1; Zheng, Kai 5; Muehlhaeuser, Max 4; Liu, Zhiyong 1
	2019-05-01
发表期刊	COMPUTER COMMUNICATIONS
ISSN	0140-3664
卷号	140 页码:1-14
摘要	In today's data center, a diverse mix of throughput-sensitive long flows and delay-sensitive short flows are commonly presented. However, commodity switches used in a typical data center network are usually shallow-buffered for the sake of reducing queueing delay and deployment cost. The direct outcome is that the queue occupation by long flows could potentially block the transmission of delay-sensitive short flows, leading to degraded performance. Congestion can also be caused by the synchronization of multiple TCP connections for short flows, as typically seen in the partition/aggregate traffic pattern. The congestion is usually transient and any end-device intervention through the timeout-based pathway would result in suboptimal performance. While multiple end-to-end transport-layer solutions have been proposed, none of them has tackled the real challenge: reliable transmission in the network. In this paper, we fill this gap by presenting PABO - a novel link-layer design that can mitigate congestion by temporarily bouncing packets to upstream switches. PABO's design fulfills the following goals: (i) providing per-flow based flow control on the link layer, (ii) handling transient congestion without the intervention of end devices, and (iii) gradually back propagating the congestion signal to the source when the network is not capable to handle the congestion. We present the detailed design of PABO and complete a proof-of-concept implementation. We discuss the impact of system parameters on packet out-of-order delivery and conduct extensive experiments to prove the effectiveness of PABO. We examine the basic properties of PABO using a tree-based topology, and further evaluate the overall performance of PABO using a realistic Fattree topology for data center networks. Experiment results show that PABO can provide prominent advantage of mitigating transient congestions and can achieve significant gain on flow completion time.
DOI	10.1016/j.comcom.2019.04.002
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFB1010001] ; National Natural Science Foundation of China[61520106005] ; National Natural Science Foundation of China[61761136014] ; German Research Foundation (DFG), Germany[392046569] ; DFG Collaborative Research Center 1053
WOS研究方向	Computer Science ; Engineering ; Telecommunications
WOS类目	Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000469892400001
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/4196
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Liu, Zhiyong
作者单位	1.Chinese Acad Sci, Inst Comp Technol, High Performance Comp Res Ctr, Beijing 100095, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Vrije Univ Amsterdam, Amsterdam, Netherlands 4.Tech Univ Darmstadt, Darmstadt, Germany 5.Huawei Technol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Shi, Xiang,Wang, Lin,Zhang, Fa,et al. PABO: Mitigating congestion via packet bounce in data center networks[J]. COMPUTER COMMUNICATIONS,2019,140:1-14.
APA	Shi, Xiang,Wang, Lin,Zhang, Fa,Zheng, Kai,Muehlhaeuser, Max,&Liu, Zhiyong.(2019).PABO: Mitigating congestion via packet bounce in data center networks.COMPUTER COMMUNICATIONS,140,1-14.
MLA	Shi, Xiang,et al."PABO: Mitigating congestion via packet bounce in data center networks".COMPUTER COMMUNICATIONS 140(2019):1-14.