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With the rapid development of information technology, people in the business of broadband IP MAN growing demand, while the single-bandwidth network services and line production can not meet the daily needs of people, and now the Internet set of images, video, voice, text and animation as a whole, that is the main transmission media bandwidth services, which must be the development trend of Internet broadband-broadband IP network to the development of broadband IP network technology came into being.In this paper, optimized for IP MAN Nan Yang Unicom expansion program designed to study how to make MAN MAN transformation while maintaining the original objective function, and target performance goal structure change based on the continuous upgrading of broadband access capability, continue to promote the two-story flat network, improve network reliability. This paper first describes the current situation of IP MAN, analysis, including network architecture, various types of resource usage, network protocol deployment, etc.various shortcomings of the existing network to sum up, then on this basis, development of the overall optimization of the expansion program technical design, focusing on business planning and implementation of various programs:QOS, MPLS VPN, various types of business cutover implementation plan, in order gradually to functional, reasonable structure, excellent performance of the target network evolution.
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