【作者】 刘勇；

【导师】 张国平；

【作者基本信息】 华中师范大学 ， 电路与系统， 2008， 硕士

【摘要】 伴随着当今网络规模的逐渐扩大,网络所能提供的服务的日益多样化。传统的网络管理模式和资源分配、访问和协调策略已不能满足用户对网络发展的新需求。同时随着IPTV业务的飞速发展,网络规模不断扩大,为了提高网络管理水平,传统的集中式网络管理模式已经不能适应目前网络的发展需求,网络急需一功能强大、具有良好的分布式特性、可互操作、自适应管理的IPTV网络管理系统。CORBA技术是一项比较成熟的分布式面向对象技术,可以解决IPTV网络管理技术所遇到的不足。本文首先分析了IPTV网络管理的优点和不足,结合CORBA技术理论,提出了将CORBA技术引入到IPTV系统中,并根据当前网络管理发展的新技术和新需求,设计构建了基于CORBA技术的统一网络管理系统。其次,针对该系统网管性能管理的不足,提出了一种针对多管理对象信息收集与访问的新算法—组预备算法GPA(Group-Preparing Alogorithm),采用该算法可以在不改变管理协议的基础上,减少对网络管理对象的访问频度,从而减少网管系统对网络带宽的占用,提高整个网管系统的性能。再次,论文侧重于统一网管平台的总体设计和提高系统性能管理的算法的分析和研究,尽可能地把现有的各独立的网络系统综合成一个功能齐全、易于操作和管理的综合网管;同时通过对相关算法的研究,提出了一种从被管理对象中提取相关MIB信息的新算法,我们可以通过该算法,减少整个网络的开销,较少地消耗系统资源。该算法在CORBA管理环境下通过了测试验证,较好地解决了对被管理对象的管理信息的访问。更多还原

【Abstract】 With the development of computer technology and telecommunication, the larger the scale of the network, the more sophistictated the structure, the traditional network management and sources distribution, access and adaption stragy can not supply the customers with new requirements of network development. At the same time, with the development of IPTV network, facing the huge network and the sophisticated network equipments, the level of the network management must be enhanced. The traditional centralized network management can not adapt the requirement of network development, the network need a distributed integral IPTV network management system with CORBA.The thesis is firstly doing the research on the IPTV network management system and the CORBA technology, according to the new requirements of network management system development, we try to design the uniform network management based on CORBA.And then, to decrease the usage of network resources by network management systems even more. A new algorithm—GPA ( Group Preparing Algorithm) has been put forward for retrieving management information. GPA can decrease the frequency of retrieval, use fewer network resources and decrease overhead without alteration of management protocols.Finally, paper puts the emphasis on the design of uniform network management platform and does the research on the new algorithm. The new algorithm has been put forward for retrieving MIB from the managed objects, and it has been tested successfully. The algorithm can decrease the usage of network resources and the frequency of retrieval.更多还原