A Single-Buffered （SB） router is a router where only one stage of shared buffering is sandwiched between two interconnects in comparison of a Combined Input and Output Queued （CIOQ） router where a central switch f...A Single-Buffered （SB） router is a router where only one stage of shared buffering is sandwiched between two interconnects in comparison of a Combined Input and Output Queued （CIOQ） router where a central switch fabric is sandwiched between two stages of buffering. The notion of SB routers was firstly proposed by the High-Performance Networking Group （HPNG） of Stanford University, along with two promising designs of SB routers： one of which was Parallel Shared Memory （PSM） router and the other was Distributed Shared Memory （DSM） router. Admittedly, the work of HPNG deserved full credit, but all results presented by them appeared to relay on a Centralized Memory Management Algorithm （CMMA） which was essentially impractical because of the high processing and communication complexity. This paper attempts to make a scalable high-speed SB router completely practical by introducing a fully distributed architecture for managing the shared memory of SB routers. The resulting SB router is called as a Virtual Output and Input Queued （VOIQ） router. Furthermore, the scheme of VOIQ routers can not only eliminate the need for the CMMA scheduler, thus allowing a fully distributed implementation with low processing and commu- nication complexity, but also provide QoS guarantees and efficiently support variable-length packets in this paper. In particular, the results of performance testing and the hardware implementation of our VOIQ-based router （NDSC~ SR1880-TTM series） are illustrated at the end of this paper. The proposal of this paper is the first distributed scheme of how to design and implement SB routers publicized till now.展开更多
Y2000-62236-120 0015302由于抽样频率与计算延迟而引起的硬磁驱动带宽限制=Hard disk drive bandwidth limitations due to samplingfrequency and computational delay[会,英]/White,M.T.& Lu,W.M.//1999 IEEE/ASME International...Y2000-62236-120 0015302由于抽样频率与计算延迟而引起的硬磁驱动带宽限制=Hard disk drive bandwidth limitations due to samplingfrequency and computational delay[会,英]/White,M.T.& Lu,W.M.//1999 IEEE/ASME InternationalConference on Advanced Intelligent Mechatronics Pro-ceedings.—120～125(PC)Y2000-62236-126 0015303硬磁盘驱动伺服磁道写用的光栅干涉仪传感器设计分析=Design analysis of a grating interferometer sensor forHDD servo-track writing[会,英]/Gamer,H.& Guo,展开更多
基金the National High-Tech Research and De-velopment Program of China (863 Program) (2003AA103510, 2004AA103130, 2005AA121210).
文摘A Single-Buffered （SB） router is a router where only one stage of shared buffering is sandwiched between two interconnects in comparison of a Combined Input and Output Queued （CIOQ） router where a central switch fabric is sandwiched between two stages of buffering. The notion of SB routers was firstly proposed by the High-Performance Networking Group （HPNG） of Stanford University, along with two promising designs of SB routers： one of which was Parallel Shared Memory （PSM） router and the other was Distributed Shared Memory （DSM） router. Admittedly, the work of HPNG deserved full credit, but all results presented by them appeared to relay on a Centralized Memory Management Algorithm （CMMA） which was essentially impractical because of the high processing and communication complexity. This paper attempts to make a scalable high-speed SB router completely practical by introducing a fully distributed architecture for managing the shared memory of SB routers. The resulting SB router is called as a Virtual Output and Input Queued （VOIQ） router. Furthermore, the scheme of VOIQ routers can not only eliminate the need for the CMMA scheduler, thus allowing a fully distributed implementation with low processing and commu- nication complexity, but also provide QoS guarantees and efficiently support variable-length packets in this paper. In particular, the results of performance testing and the hardware implementation of our VOIQ-based router （NDSC~ SR1880-TTM series） are illustrated at the end of this paper. The proposal of this paper is the first distributed scheme of how to design and implement SB routers publicized till now.
文摘Y2000-62236-120 0015302由于抽样频率与计算延迟而引起的硬磁驱动带宽限制=Hard disk drive bandwidth limitations due to samplingfrequency and computational delay[会,英]/White,M.T.& Lu,W.M.//1999 IEEE/ASME InternationalConference on Advanced Intelligent Mechatronics Pro-ceedings.—120～125(PC)Y2000-62236-126 0015303硬磁盘驱动伺服磁道写用的光栅干涉仪传感器设计分析=Design analysis of a grating interferometer sensor forHDD servo-track writing[会,英]/Gamer,H.& Guo,
