交换机的时间感知整形器的设计

Design of Time-Aware Shaper used in Time-sensitive Networking switch

时间敏感网络(TSN)是应用于未来工业网络实时性的一种增强型以太网技术。作为主要关键技术之一,流量调度机制决定了时间敏感网络数据传输的确定性和实时性,对其进行研究是非常具有价值的。在研究了802.1Qbv标准中所定义的时间感知整形器的实现机制和完整的处理流程的基础上,提出了一种时间感知整形器调度机制的设计。将整个设计在自研的TSN交换机平台上进行组网测试,验证了调度器可支持时间敏感业务流的确定性传输。

Time-Sensitive Networking(TSN)is one of the enhanced Ethernet technologies for the real-time application of industrial networks in the future.As one of the main key technologies,the traffic scheduling mechanism determines the certainty and real-time nature of time-sensitive network data transmission,so it is very valuable to study it.On the basis of studying the implementation mechanism and complete processing flow of Time-Aware Shaper defined in 802.1Qbv standard,a design of Time-Aware Shaper scheduling mechanism is proposed.The whole design is tested on the self-developed TSN switch platform,which verifies that the scheduler can support the deterministic transmission of time-sensitive traffic.