支持精确时间同步协议的分布式交换机Linux驱动研究  

Distributed Switch Architecture That Support Precise Time Synchronization Linux Research

作　　者：鲍中 鲍广建 刘娇 Bao Zhong;Bao GuangJian;Liu Jiao(China Key System&Integrated Circuit Co,Ltd,Wuxi Jiangsu,214072)

机构地区：[1]中科芯集成电路有限公司,江苏无锡214072

出　　处：《电子测试》2022年第22期72-74,130,共4页Electronic Test

摘　　要：在现代通信网络中,各节点设备之间需要高精度的时钟同步来达到硬实时的能力。高精度的时钟同步需要网络中交换机等传输设备支持精确时间同步协议。PTP精确时间协议(Precision Time Protocol)是一种高精度时间同步协议,在网络中通过同步信号周期性对所有节点时钟校正。PTP一般在硬件级实现,能够达到纳秒级别,是现代通信网络中常用的时钟同步协议。In modern communication networks, high precision clock synchronization between nodes is needed to achieve hard real-time capability. High precision clock synchronization requires that transfer devices such as switches in the network support precise time synchronization protocols.PTP(Precision Time Protocol) is a high precision time synchronization protocol on the network. The clock of all nodes is periodically corrected by synchronization signal. PTP generally works at the hardware level which accuracy is nanosecond, become the popular clock synchronization protocol commonly used in modern communication networks.

关 键 词：精确时间协议 IEEE 1588 交换机 分布式 

分 类 号：TN99[电子电信—信号与信息处理]