基于NTP实现广电宽带网络时钟同步的方案部署

The Implementation of Network Time Synchronization Based on NTP for Radio and TV Broadcast Network

摘要: 随着基于传统广电网络的双向改造的完成，以及多样化业务运营的发展，广电系统网络中的相关设备对于时钟同步信息的需求越来越高。为了满足这些要求，本文介绍了用于在数据网络中传送时钟信息的NTP协议。并且，根据河南有线网络集团分散式和分层次的网络特点，本文介绍如何引入外部GPS时钟作为精确时钟源以及如何在数百台规模的服务器和路由器实现时钟同步。

Abstract: AS the accomplishment of the two-way transformation based on the traditional radio and TV net-work and the development of operations for diversity video services, the higher requirements for network time information synchronization are raised in the radio and TV system. In order to meet the demands, this paper introduces the NTP protocol which can transmit time information in data network. And based on the distributed and layered network architecture of HNCATV, it gives the implementation about how to use external GPS timer as the precise timer source and realize the time synchronization for hundreds of equipment such as servers, routers.