基于OmniStar的网管代理技术研究

发布时间：2018-03-30 21:30

本文选题：有线电视网络　切入点：网管代理　出处：《沈阳理工大学》2014年硕士论文

【摘要】：随着各种网络设备和接入技术广泛地应用在有线电视网络中，使得人们对有线电视网络设备全面监控的要求越来越高。由于许多早期有线电视设备（如OmniStar光传输平台）只支持串口通信等近端监控，而很难实现远程的监控管理，给有线电视设备的网络化维护和管理带来不便。因此设计具有远程实时监控能力的网管代理系统，是实现有线电视设备网络管理的一个重要步骤。根据OmniStar平台网管代理需求，本文对网管代理系统的硬件和软件部分分别进行了设计。在硬件方面，设计并实现了以ARM-S3C2416为基础的、具备15路串口的网管代理服务器，网管代理服务器采用串并行相结合的方式最多管理75台OmniStar平台，降低了项目成本、节省了所占空间。在软件方面，在研究简单网络管理（SNMP）网管协议的基础上，对网管代理系统进行了设计，其中包括通过分析OmniStar平台与前端控制软件HCS之间的串口通信过程，解析出OmniStar平台串并联的串口通信协议；通过多进程同步和互斥技术，实现了负责轮询机架数据信息和查找告警信息的信息参数轮询模块；在嵌入式内核中，实现了保证数据存储和提取速率的内存DB模块；为实现OmniStar平台的协议转换和SNMP报文的封装，设计了Agent代理模块。除此之外，本网管代理系统还实现了CLI本地界面管理、远程版本维护、FTP下载更新等功能。最后，采用网络管理软件对本网管代理系统进行测试，本网管代理系统一方面能够采集OmniStar平台的参数和告警信息，并将其封装成SNMP应答报文，提交给管理端；另一方面，能够解析来自管理端的网管请求，通过协议转换向OmniStar平台发送串口通信指令，进行实时数据采集和参数配置。结果表明，，本系统网管代理系统能够完成对有线电视网络设备的实时远程监控管理。
[Abstract]:With the wide application of all kinds of network equipment and access technology in CATV network, people demand more and more comprehensive monitoring of CATV network equipment.Because many early CATV equipments (such as OmniStar optical transmission platform) only support the near end monitoring such as serial communication, it is very difficult to realize remote monitoring and management, which brings inconvenience to the network maintenance and management of CATV equipment.Therefore, it is an important step to design a network management agent system with the ability of remote real-time monitoring.According to the network management agent requirement of OmniStar platform, the hardware and software of the network management agent system are designed in this paper.In the aspect of hardware, the network management proxy server based on ARM-S3C2416 and with 15 serial ports is designed and implemented. The network management proxy server manages 75 OmniStar platforms in the way of series-parallel combination, which reduces the cost of the project.The space occupied is saved.In the software aspect, on the basis of studying the network management protocol of simple network management (SNMP), the network management agent system is designed, including the serial communication process between the OmniStar platform and the front-end control software HCS.The serial communication protocol of series-parallel connection of OmniStar platform is analyzed, and the information parameter polling module which is responsible for polling frame data information and searching alarm information is realized through multi-process synchronization and mutex technology.In order to realize the protocol conversion of OmniStar platform and the encapsulation of SNMP packets, the Agent proxy module is designed.In addition, the network management agent system also implements the CLI local interface management, remote version maintenance, CLI download and update functions.Finally, the network management agent system is tested by network management software. On the one hand, the network management agent system can collect the parameters and alarm information of OmniStar platform, encapsulate it into SNMP response message, and submit it to the management side.It can resolve the network management requests from the management side, send serial communication instructions to the OmniStar platform through protocol conversion, and carry out real-time data acquisition and parameter configuration.The results show that the network management agent system can realize the real-time remote monitoring and management of CATV network equipment.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.07

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