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arXiv 2201.10111cs.NI
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IEEE 802.1Qbv时间敏感网络间的大规模确定性传输

Large-scale Deterministic Transmission among IEEE 802.1Qbv Time-Sensitive Networks

Weiqian Tan, Binwei Wu, Shuo Wang, Tao Huang

摘要:

IEEE 802.1Qbv(TAS)是时间敏感网络(TSN)中使用最广泛的技术,其目的是在工业局域网中提供有限的传输延迟和超低抖动。随着新兴技术的发展(例如,云计算),许多广泛的时间敏感的网络服务出现,如工厂自动化,联网车辆和智能电网。然而,TAS是用于本地网络的第2层技术,并且不能提供大规模确定性传输。为了解决这个问题,本文提出了一个分层网络包括接入网和核心网。接入网络执行TAS以聚合时间敏感的业务。在核心网络中,我们利用DIP(一个著名的骨干网络的确定性组网机制),以实现长距离确定性传输。由于TAS和DIP的不同,我们在接入网和核心网的边缘设计了跨域传输机制,以实现无缝的确定性传输。我们还制定了端到端的调度,以最大限度地提高接受的时间敏感的流量。实验仿真表明,该网络可以实现端到端的确定性传输,即使在高负载的情况下。

英文摘要:

IEEE 802.1Qbv (TAS) is the most widely used technique in Time-Sensitive Networking (TSN) which aims to provide bounded transmission delays and ultra-low jitters in industrial local area networks. With the development of emerging technologies (e.g., cloud computing), many wide-range time-sensitive network services emerge, such as factory automation, connected vehicles, and smart grids. Nevertheless, TAS is a Layer 2 technique for local networks, and cannot provide large-scale deterministic transmission. To tackle this problem, this paper proposes a hierarchical network containing access networks and a core network. Access networks perform TAS to aggregate time-sensitive traffic. In the core network, we exploit DIP (a well-known deterministic networking mechanism for backbone networks) to achieve long-distance deterministic transmission. Due to the differences between TAS and DIP, we design cross-domain transmission mechanisms at the edge of access networks and the core network to achieve seamless deterministic transmission. We also formulate the end-to-end scheduling to maximize the amount of accepted time-sensitive traffic. Experimental simulations show that the proposed network can achieve end-to-end deterministic transmission even in high-loaded scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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