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

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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 realibility 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 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.

Original languageEnglish
Pages (from-to)288-294
Number of pages7
JournalIEICE Transactions on Electronics
Issue number3
Publication statusPublished - 2001 Mar
Externally publishedYes


  • LAN
  • Network switch
  • Optical interconnection
  • Parallel computing
  • SAN

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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