基于NTP实现广电宽带网络时钟同步的方案部署基于NTP实现广电宽带网络时钟同步的方案部署.pdf

Hans Journal of Wireless Communications 无线通信, 2014, 4, 107-112 Published Online December 2014 in Hans. /journal/hjwc /10.12677/hjwc.2014.46017 The Implementation of Network Time Synchronization Based on NTP for Radio and TV Broadcast Network 1 2 Yan Li , Sha Sha 1 Henan Cable Television Network CO. LTD, Zhengzhou 2 Huaxia PT Project Consultation and Management CO. LTD, Zhengzhou Email: firestone_83@163.com, ss@ st th st Received: Oct. 21 , 2014; revised: Nov. 16 , 2014; accepted: Nov. 21 , 2014 Copyright © 2014 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ 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. Keywords Time Information Synchronization, GPS Timer, NTP 基于NTP实现广电宽带网络时钟同步的 方案部署 1 2 李 岩 ，沙 莎 1河南有线电视网络集团，郑州 2华夏邮电咨询监理有限公司，郑州 107 基于NTP 实现广电宽带网络时钟同步的方案部署 Email: firestone_83@163.com, ss@ 收稿日期：2014年10月21 日；修回日期：2014年11月16 日；录用日期：2014年11月21 日 摘 要 随着基