This paper describes OSPF's work principles, calculation steps and application situations, mainly the application of OSPF in school domain network and relevant parameters setting. As an important internal gateway protocol, OSPF has an important effect on the network performance. The author makes a network planning by using OSPF to a university which is adapted to the multimedia teaching, network office and routine. In this paper the author expounds on the ideas and practical experience from this planning. The university has three scattered campuses, many students and teachers. Thus the flow of the network is complicated. For solving this problem, some parameters have been set in this planning, such as """"cost"""" and """"metric"""". The cost values decide the data, the metric values control routing priority. After analyzing the system operating data, the network has a good stability and effect.
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