天津网通IP城域网扩容改造规划设计.doc

摘要宽带IP城域网是电信运营商在城域范围内建设的城市IP骨干网络,它是城市重要的信息基础设施。近年来,随着通信业务需求的快速增长,原有宽带IP城域网越来越不能满足通信业务发展的动态增长的要求,其网络缺陷及不足陆续表现出来,主要表现在网络结构不合理和业务支持能力差两个方面。在当前形势下,只有依据一定的科学优化原则和方法对IP城域网进行优化,提高多业务差异化服务能力,通信运营商才能够在激烈的竞争中保持领先的优势。本论文对天津网通宽带城域网的业务及网络发展现状进行评估,提出城域网改造的必要性和可行性。在给出详细的改造方案之前,首先介绍了城域网优化改造所涉及的一些相关理论,运用这些理论知识对天津网通IP城域网的现状进行了深入细致的分析。针对以上的分析结果,对天津网通IP城域网的优化、扩容改造提出了自己的见解,并根据网络自身特点和实际情况,设计了相应合理优化方案;同时运用这些优化设计方案,参与天津网通IP城域网的优化工作。通过实际应用,天津网通IP城域网经过优化后,其网络传输容量、网络质量、网络可靠性、资源利用率等都得到了大幅提高,证明了优化的设计方案是可行而有效的,完全满足网络业务发展的要求。关键词:城域网;宽带;OoS;路由;业务 ABSTRACT The Broadband IP MAN iS the operators in the metro area of the citybuilding IP work,it is important city information recent theyears,with demand for munications business grew rapidly,increasingoriginal broadband IP MAN call not meet munications business growth in thedynamic development of the requirements of work ings anddeficiencies have in work structure iS irrational and Businesssupport is poor two the current situation,only the scientific basis ofcertain principles and methods tO optimize the IP MAN to optimize and differentiated services munications operators can in petition to maintain the leading edge. In this paper,the com Broadband MAN’S business workdevelopment of all assessment by MAN of the necessity and aregiven in the transformation of the programme before,th