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Proceedings Paper

Virtual multichannel optical ring for computer cluster
Author(s): Wencai Jing; Ge Zhou; Haifeng Li; Jindong Tian; Nan Zhang; Yuxiu Deng; Hongxia Zhang; Yimo Zhang
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Paper Abstract

A giga-bit per second optical ring has been designed. The data link layer bandwidth of the network is 1.5 Gbit/s. Hardware routing has been achieved by field programmable gate array (FPGA) to minimize the communication latency. As a result, the point-to-point communication latency between adjacent node computers is less than 300 ns. To reduce the data communication latency and have a more efficient usage of the data link layer bandwidth, virtual multi-channel transmission mechanism has been achieved with hardware. The network supports a maximum of four virtual channels for each physical data link. Time slots can be dynamically assigned to each virtual channel. The length of each time slot can also be dynamically selected based on the length of each data packets. Zero wait time has been achieved for the switching between different virtual channels. The relationship between the network performance and the number of virtual channels has also been analyzed in this paper.

Paper Details

Date Published: 18 October 2001
PDF: 6 pages
Proc. SPIE 4582, Optical Switching and Optical Interconnection, (18 October 2001); doi: 10.1117/12.445090
Show Author Affiliations
Wencai Jing, Tianjin Univ. (China)
Ge Zhou, Tianjin Univ. (China)
Haifeng Li, Tianjin Univ. (China)
Jindong Tian, Tianjin Univ. (China)
Nan Zhang, Tianjin Univ. (China)
Yuxiu Deng, Tianjin Univ. (China)
Hongxia Zhang, Tianjin Univ. (China)
Yimo Zhang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 4582:
Optical Switching and Optical Interconnection
Lih-Yuan Lin; Shulian Zhang, Editor(s)

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