On guaranteed smooth switching for buffered crossbar switches

doi:10.1109/TNET.2007.900402

	On guaranteed smooth switching for buffered crossbar switches
	He, Si-Min 1; Sun, Shu-Tao 2; Guan, Hong-Tao 3; Zheng, Qiang 1; Zhao, You-Jian 3; Gao, Wen 4
	2008-06-01
发表期刊	IEEE-ACM TRANSACTIONS ON NETWORKING
ISSN	1063-6692
卷号	16 期号:3 页码:718-731
摘要	Scalability considerations drive the evolution of switch design from output queueing to input queueing and further to combined input and crosspoint queueing (CICQ). However, CICQ switches with credit-based flow control face new challenges of scalability and predictability. In this paper, we propose a novel approach of rate-based smoothed switching, and design a CICQ switch called the smoothed buffered crossbar or sBUX. First, the concept of smoothness is developed from two complementary perspectives of covering and spacing, which, commonly known as fairness and jitter, are unified in the same model. Second, a smoothed multiplexer sMUX is designed that allocates bandwidth among competing flows sharing a link and guarantees almost ideal smoothness for each flow. Third, the buffered crossbar sBUX is designed that uses the scheduler sMUX at each input and output, and a two-cell buffer at each crosspoint. It is proved that sBUX guarantees 100% throughput for real-time services and almost ideal smoothness for each flow. Fourth, an on-line bandwidth regulator is designed that periodically estimates bandwidth demand and generates admissible allocations, which enables sBUX to support best-effort services. Simulation shows almost 100% throughput and multi-microsecond average delay. In particular, neither credit-based flow control nor speedup is used, and arbitrary fabric-internal latency is allowed between line cards and the switch core, simplifying the switch implementation.
关键词	buffered crossbar scheduling smoothness switches
DOI	10.1109/TNET.2007.900402
收录类别	SCI
语种	英语
WOS研究方向	Computer Science ; Engineering ; Telecommunications
WOS类目	Computer Science, Hardware & Architecture ; Computer Science, Theory & Methods ; Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000256967100018
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计	被引频次：27[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/2XEOYT63/11116
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	He, Si-Min
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China 2.Commun Univ China, Sch Comp & Software, Beijing 100024, Peoples R China 3.Tsinghua Univ, Dept Comp Sci & Technol, Beijing 100086, Peoples R China 4.Peking Univ, Inst Digital Media, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	He, Si-Min,Sun, Shu-Tao,Guan, Hong-Tao,et al. On guaranteed smooth switching for buffered crossbar switches[J]. IEEE-ACM TRANSACTIONS ON NETWORKING,2008,16(3):718-731.
APA	He, Si-Min,Sun, Shu-Tao,Guan, Hong-Tao,Zheng, Qiang,Zhao, You-Jian,&Gao, Wen.(2008).On guaranteed smooth switching for buffered crossbar switches.IEEE-ACM TRANSACTIONS ON NETWORKING,16(3),718-731.
MLA	He, Si-Min,et al."On guaranteed smooth switching for buffered crossbar switches".IEEE-ACM TRANSACTIONS ON NETWORKING 16.3(2008):718-731.