Design Optimization of Frame Preemption in Real-Time Switched Ethernet
Design Optimization of Frame Preemption in Real-Time Switched Ethernet
复制标题
实时交换以太网帧抢占的设计优化
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
K. Shin
中科院分区：
文献类型：
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作者：
Taejun Park;Soheil Samii;K. Shin
交换式以太网在当前和未来的实时和嵌入式系统中已经并将越来越普遍。IEEE 802.1工作组最近开发了通常称为时间敏感网络（TSN）的标准和技术，以增强交换以太网的及时性和可靠性。我们首次通过引入两个新的配置参数来解决TSN帧抢占标准IEEE 802.3br-2016和802.1Qbu-2016的合成问题：流到队列和队列到Express/可抢占MAC接口分配。我们提出了一个优化框架，以确定这些配置参数的可靠性作为优化目标。我们提出的框架表现优于常用的优先级分配以及直观的方法。
Switched Ethernet has been, and will also be increasingly common in current and future real-time and embedded systems. The IEEE 802.1 working group has recently developed standards and technologies, commonly referred to as Time-Sensitive Networking (TSN), to enhance switched Ethernet with timeliness and dependability. We address, for the first time, the synthesis problem for the TSN frame preemption standards IEEE 802.3br-2016 and 802.1Qbu-2016 by introducing two new configuration parameters: flow to queue and queue to Express/Preemptable MAC interface assignments. We present an optimization framework to determine these configuration parameters with reliability as the optimization goal. Our proposed framework is shown to outperform commonly used priority-assignment as well as intuitive approaches.