1588v2协议在PTN中的实现

Implementation of 1588v2 protocol in PTN

为有效实现分组传送网(PTN)的时间同步,介绍了1588v2协议的同步原理,分析了PTN实现高精度同步的关键技术,并提出了一种网络从时钟的相位补偿算法,进行了基于1588v2协议+同步以太网的PTN时钟同步测试。测试结果表明:基于1588v2协议+同步以太网和从时钟补偿算法的PTN时钟同步,在实现高精度相位同步的同时,有效提高了从时钟相位稳定度。

In order to effectively realize packet transmission network(PTN) time synchronization, this paper introduces the synchronization principle of 1588 v2 protocol, analyzes the key technology of PTN realizing high-precision synchronization, proposes a phase compensation algorithm of network slave clock, and carries out the PTN clock synchronization test based on 1588 v2 protocol+ synchronous ethernet. The test results show that the PTN network clock synchronization based on 1588 v2 protocol+synchronous ethernet and slave clock compensation algorithm not only realizes high-precision phase synchronization, but also effectively improves the slave clock phase stability.