A High-Speed, Highly-Reliable Network Switch for Parallel Computing System Using Optical Interconnection

Shinji NISHIMURA  Tomohiro KUDOH  Hiroaki NISHI  Koji TASHO  Katsuyoshi HARASAWA  Shigeto AKUTSU  Shuji FUKUDA  Yasutaka SHIKICHI  

IEICE TRANSACTIONS on Electronics   Vol.E84-C   No.3   pp.288-294
Publication Date: 2001/03/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Optical Interconnects/Optical Signal Processing)
Category: Optical Interconnection Systems
optical interconnection,  parallel computing,  network switch,  LAN,  SAN,  

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RHiNET-2/SW is a network switch for the RHiNET-2 parallel computing system. RHiNET-2/SW enables high-speed and long-distance data transmission between PC nodes for parallel computing. In RHiNET-2/SW, a one-chip CMOS switch-LSI and eight pairs of 800-Mbit/s 12-channel parallel optical interconnection modules are mounted into a single compact board. This switch allows high-speed 8-Gbit/s/port parallel optical data transmission over a distance of up to 100 m, and the aggregate throughput is 64 Gbit/s/board. The CMOS-ASIC switching LSI enables high-throughput (64 Gbit/s) packet switching with a single chip. The parallel optical interconnection modules enable high-speed and low-latency data transmission over a long distance. The structure and layout of the printed circuit board is optimized for high-speed, high-density device implementation to overcome electrical problems such as signal propagation-loss and crosstalk. All of the electrical interfaces are composed of high-speed CMOS-LVDS logic (800 Mbit/s/pin). We evaluated the reliability of the optical I/O port through long-term data transmission. No errors were detected during 50 hours of continuous data transmission at a data rate of 800 Mbit/s 10 bits (BER: < 2.44 10-14). This test result shows that RHiNET-2/SW can provide high-throughput, long-transmission-length, and highly reliable data transmission in a practical parallel computing system.