| Light transmission technology after nearly 10 years of development, has far exceeded SDH WDM wavelength connection circuit and the concept,2000 MSTP and provide in recent years, the business began gradually become more ASON to future business for the popular light transmission network technology. Facing the new business, MSTP oriented business group, transmitting network for transmission using ASON organic combination of both for future communication network to provide the most complete transmission solutions.This paper mainly studies in many business mode constructing optical transmission network, a new kind of transmission network architecture to solve many business demand, and can meet the future direction of the evolution of network. Through the study, EPON PON ASON, several light, OTNs principle of network technology and technical characteristics, and raise the reasonable application of technology to build new light transmission, currently online and conform to the shortage of transmission network transmission network development trend, and satisfy the operation mode of the business operators more demand.The optical fiber access network planning and design, to construct the new man examples, the development and application of technology of otns established for ALL IP networks development goals and architecture. The research present metro transmission network of IP method and strategy development and light to adapt to development of network technology development IP network. In constructing new metro transmission network makes the existing network resources utilization, and can satisfy the demand of the whole business more abundant, and reduce the network construction and operation and maintenance cost, smooth evolution. |
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