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Zhaoqing City Department of Education needs br Order to better facilitate the sharing of educational resources and teaching experience between teachers and so on the city needs to build a unified network platform of the city education special network so that all secondary school teachers and students can share educational resources Zhaoqing City Education Bureau the city has more than 200 secondary schools around the network are connected together to achieve regional connectivity hierarchical management concepts ultimately ERP LOTUSCOMIMO video and education Software Applications implemented following a number of secondary schools throughout the city will eventually achieve quot School Link quot Project including students on line Test Teachers to change examination papers online In short it 39 s primary function is to provide schools with networking and information oriented educational environment br br Traditional networking approach can be used DDN FR and other interconnection line but these methods seem unsatisfactory in many ways such as the price is too high or maintenance needs of professionals there is the expansion of inconvenience So in today 39 s fast development of the Internet using this advanced VPN Technology Construction of network interconnection become a fashion more companies tried this new mode of communication through the Internet to achieve enterprise branch network interconnection is today one of the most typical network applications this is similar to the traditional rental cost of interconnection line saves the enterprise spending than a high speed network is much cheaper way Zhaoqing City Board of Education decision therefore the final transformation to VPN network platform br br Building networks of Education requirements 1 Because the original City Bureau of Education and provincial education network has a dedicated private network using the Internet so the new VPN network must be able to communicate with the original network br br 2 Direct contact with the various County Education Bureau of Education focusing on secondary schools to establish a direct connection and achieve full network connectivity br br 3 All county schools and local education bureau form relatively independent of the network br 4 Because of the complexity of individual nodes in the network in the process set up VPN network with minimal changes to the original network under the interconnection br br Network topology Program description Council Headquarters by GW5000NP equipment Internet access method is Fast fiber APN three internal network port access Switch br br Second level nodes are used APNGW2000NP access Internet access and ADSL line mode there are two br br Counties within the secondary schools APNGW200ANP equipment using ADSL Internet access br General form three connected City Board of Education for the center the County Education Bureau and the focus of the second level schools about 20 a few nodes the last county to the secondary schools in the third grade In the first phase of construction completed and the Bureau of Education focusing on the virtual private network connections between schools In the second phase of construction to complete the third level of network connection the connection topology is the county Bureau of Education secondary schools within the county directly connected to the formation of several independent network of county level professionals br br Extended application APN formed into a company br use virtual private network as if the enterprise has just around the branch or office established good as a dedicated highway is only the beginning As the use of this data highway is associated with enterprise applications but basically no matter the use of any of the applications as long as is based on TCP IP protocol we can support the application of the following is the common case br br 1

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