Proposal and Performance Evaluation of a High-Speed Internetworking Device

Akira WATANABE  Yuuji KOUI  Shoichiro SENO  Tetsuo IDEGUCHI  

IEICE TRANSACTIONS on Communications   Vol.E79-B   No.5   pp.639-646
Publication Date: 1996/05/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on High Speed Local Area Network)
router,  performance,  architecture,  internetworking,  evaluation,  

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We propose an architecture of a high-speed internetworking device using central control method. Co-operations of hardware and software is required to realize high relay performance. For the hardware, we have designed an original bus arbitration control method to achieve a high throughput of a data bus. For the software, we have devided a normal relay processing from other processing and built it as a basic function of the monitor. By this method, relay perfomance improves dramatically, because of a multiple effect of the reduction of software overheads and the improvement of cache hit ratio. We have developed the prototype device and confirmed the effects of the proposed method.