基于FlexE技术的电力数据通信网小颗粒切片调度机制研究

Research on Fine Granularity Unit Slicing Schedule Mechanism in Power Data Communication Network Based on FlexE Technology

灵活以太网(flexible ethernet,FlexE)技术作为构建新型电力信息通信网络的有效方案,可以同时实现多业务切片化和共同承载,但小颗粒技术(fine granularity unit,FGU)的引入带来了相对应的问题。文章首先阐述了小颗粒切片引入FlexE技术面临的一些问题与技术挑战,然后从节点和端到端时延、双向时延问题以及复帧相位变化两方面开展对系统性能影响的研究,最后结合时隙编排算法和转发面的复帧相位对齐优化措施开展了FlexE网络的小颗粒时隙编排调度算法的设计,改善了系统性能。

FlexE technology,as an effective solution for building a new power information communication network,can realize multi-service slicing and co-bearing at the same time,but the introduction of FGU brings corresponding problems.This paper firstly clarifies some problems and technical challenges faced by the introduction of FlexE technology in multi-granular slices,and then analyzes the impact on the performance of the system from the node and end-to-end delay,two-way delay problem and multi-frame phase change brought by FGU.Finally,the optimization measures with the combination of the time slot scheduling algorithm and the multi-frame phase alignment of the forwarding plane have carried out the design of FGU time slot scheduling algorithm of the FlexE network,which improves the system performance.