A Switch Design for Real-Time Industrial Networks

TitleA Switch Design for Real-Time Industrial Networks
Publication TypeConference Paper
Year of Publication2008
AuthorsWang, Q., S. Gopalakrishnan, X. Liu, and L. Sha
Conference NameReal-Time and Embedded Technology and Applications Symposium, 2008. RTAS '08. IEEE
Pagination367 -376
Date Publishedapr.
Keywordsbest-effort Internet traffic, crossbar switching fabric, flow aggregation, hierarchical scheduling, high-speed WAN switches, Internet, iSLIP crossbar switch scheduler, next generation networking, real-time industrial networks, real-time virtual machine tasks, scheduling, telecommunication switching, telecommunication traffic
Abstract

The convergence of computers and the physical world is the theme for next generation networking research. This trend calls for real-time network infrastructure, which requires a high-speed real-time WAN to serve as its backbone. However, commercially available high-speed WAN switches (routers) are designed for best-effort Internet traffic. A real-time switch design for the aforementioned networks is missing. We propose a real-time switch design using a crossbar switching fabric. The proposed switch can be implemented by making minimal modification, or even simplification, to the widely implemented iSLIP crossbar switch scheduler. Our real-time switch serves periodic and aperiodic traffic with real-time virtual machine tasks, which simplifies analysis, provides isolation, and facilitates future hierarchical scheduling and flow aggregation. Taking advantage of the fact that most industrial real-time network flows rarely change, our switch is better adapted to providing high bandwidths and low latencies.

URLhttp://dx.doi.org/10.1109/RTAS.2008.8
DOI10.1109/RTAS.2008.8

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