PTN智能网络管理系统中同步技术的研究与应用

发布时间：2018-02-24 15:00

本文关键词： PTN智能网管系统频率同步时间同步同步以太网 IEEE1588V2　出处：《武汉理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：伴随移动互联网与IP多媒体子系统等业务的蓬勃发展，大量的视频和数据IP化业务不断涌现，通信网络已经从以语音业务为主的SDH网络逐步转变为以IP业务为主的PTN（Packet Transport Network，分组传输网络）。为保证PTN网络中业务的高效无误传输，同步技术成为关键技术之一。论文介绍了课题的研究背景与同步技术的发展历程，其中同步分为频率同步和时间同步。为满足通信网络对时间同步的高精度要求，PTN智能网络管理系统采用同步以太网技术以及IEEE1588V2同步技术实现频率和时间的同步。论文完成的主要工作有以下几个方面： 1.论文对PTN智能网络管理系统中频率同步与时间同步的需求进行分析，同时还对展现网络中同步状态的时间时钟拓扑的需求进行了分析。 2.论文研究了PTN网络中的同步以太网技术，对实现频率同步的SSM算法进行了分析，并对PTN网络管理系统中的频率同步进行了设计与实现。 3.论文对PTN网络中的IEEE1588V2同步技术进行了研究，重点对实现时间同步的LCS算法进行了分析，，设计并实现了PTN智能网络管理系统中基于PTP的时间同步。 4.为了将PTN网络中的频率和时钟的同步状态信息以拓扑图的形式展现，论文实现了时间时钟拓扑模块。为提高时钟拓扑的加载效率，在读取时间时钟信息时采用用多线程技术，通过对比改进前后的测试数据结果来进一步验证改进方法的有效性。根据项目的实际情况和需求本系统采用了三层C/S架构，通过使用远程方法调用、Java代码成功实现了PTN智能网络管理系统中的频率同步和时间同步的功能以及时间时钟拓扑。
[Abstract]:With the rapid development of mobile Internet and IP multimedia subsystem, a large number of video and data IP services continue to emerge. The communication network has gradually changed from the SDH network based on voice service to the PTN(Packet Transport network based on IP service. In order to ensure the efficient and correct transmission of services in PTN network, synchronization technology has become one of the key technologies. This paper introduces the research background and the development of synchronization technology. The synchronization is divided into frequency synchronization and time synchronization. In order to meet the high precision requirement of time synchronization in communication network, synchronous Ethernet technology and IEEE1588V2 synchronization technology are used to realize frequency and time synchronization in the intelligent network management system. The main work accomplished in this paper is as follows:. 1. The requirements of frequency synchronization and time synchronization in PTN intelligent network management system are analyzed. 2. This paper studies the synchronous Ethernet technology in PTN network, analyzes the SSM algorithm to realize the frequency synchronization, and designs and implements the frequency synchronization in the PTN network management system. 3. In this paper, the IEEE1588V2 synchronization technology in PTN network is studied, and the LCS algorithm to realize time synchronization is analyzed, and the time synchronization based on PTP in PTN intelligent network management system is designed and implemented. 4. In order to display the synchronous state information of frequency and clock in PTN network in the form of topology, this paper implements the time clock topology module. In order to improve the loading efficiency of clock topology, multithread technology is used to read the time clock information. The effectiveness of the improved method is further verified by comparing the test data before and after the improvement. According to the actual situation and requirements of the project, the system adopts a three-layer C / S architecture. The functions of frequency synchronization and time synchronization and time clock topology in PTN intelligent network management system are successfully realized by using remote method to call Java code.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.07

【参考文献】