面向TSN的同步网络模型及应用

Synchronized network model and its application for TSN

为建立一套基于CPU+FPGA架构的完善自主化TSN方案,提出面向TSN的同步网络模型SyncNet。以全网高精度时钟同步为基础,结合网络设备的确定性转发机制以及全局流量调度规划软硬件协同保障TSN的确定性传输。基于SyncNet网络模型在可编程网络设备上构建一套TSN原型系统,并对该原型系统进行测试验证,实验结果表明,该网络原型可以有效保障混合流量模式下时间敏感流量的传输时延确定性。

To realize a complete TSN scheme,a synchronous network model SyncNet for TSN was proposed based on the high-precision clock synchronization of the whole network.The deterministic forwarding mechanism of network equipment and the global traffic scheduling of software and hardware were combined to ensure the deterministic transmission of TSN.Based on the SyncNet network model,a TSN prototype system was built on a programmable network platform to verify the proposed model.Experimental results show that the SyncNet-based TSN network prototype can effectively guarantee the time delay of time-sensitive traffic in the mixed traffic mode.