IEEE1394网络拓扑结构的可靠性研究

On Reliability of Physical Topology for IEEE1394

针对IEEE1394在航天应用中的高可靠性要求,分析和比较了使用支持不同端口数的物理层芯片构建的树状结构集线器的可靠性和容错能力;给出了两种具有一定容错能力和较高可靠性的实用网络集线器构建方案。对IEEE1394网络集线器的定性与定量分析以及提供的网络集线器构建方案具有一定的理论意义和较强的实用价值。

The use of commercial bus standards in space-mission is the highest-payoff application. While using commercial bus standards enable significant cost reductions, it is a great challenge for us to deliver a highly-reliable long-term survivable system employing them that are not developed to mission-critical application. IEEE1394 is a high performance commercial bus, and begins to be used in avionics recently. In order to meet the high-reliable need, we must make deep study of the reliability of IEEEI394 bus. In this paper, the reliability of several physical topologies for IEEE1394 bus was qualitatively analyzed and quantitative evaluated. And at last, two fault-tolerant and high-reliable designs for 1394 are proposed.