基于FlexE的1588时间同步技术的设计与实现

Design and Implementation of 1588 Time Synchronization Technology Based on FlexE

为了满足5G承载对大容量和网络切片的承载需求,FlexE(灵活以太网)预计将作为一项重要技术被广泛运用在通信网络中,同时1588时间同步技术也会成为5G通信的重要同步方式。在FlexE的基础上实现1588时间同步是本次研究的主要目的,通过研究1588时间同步的基本原理以及PTP报文在FlexE接口中的传输方式,提出了一种基于FlexE实现1588同步技术的设计方案,实验证实了该方案能够实现1588同步功能且具有较高的同步精度和稳定性。

In order to satisfy the bearing requirements of large capacity and network slicing for 5G, FlexE（Flexible Ethernet） which is expected to be as an important technology will be widely applied in communication networks. In the meantime, 1588 time synchronization technology is also expected to be an important synchronization method for 5G. The implementation of 1588 time synchronization based on FlexE is the major objective of this research. According to the principle of 1588 time synchronization and the transmission mode of PTP message on FlexE interface, a design scheme on 1588 time synchronization based on FlexE is proposed which verifies that the proposed scheme can achieve 1588 time synchronization and has higher accuracy and stability of synchronization.