Study On Dcn Technology Of Automatically Switched Optical Network

The Information Optical transmission Network (ASON) is experiencing a huge change.Beginning at the middle time of 21 centry 90 times,with the success of Internet commericial bring deep impact to the trandition Communication industry,the increase rate of data communication is much more than traditional voice traffic. The traditional SDH network,due to native limit,it can not meet with the service need which is in high speed development.Thus,based on the the traditional transmission network architectures,for new generation network,it is necessary to study and innovate the system archeitecture and control & management fuction.ASON is thought to be a important breakthough for traditional optical network.With the added control plane,it can implement realtime and dynaic resource configure on need,bring about intelligentization into optical network. The introduction of control plane is key character which different to traditional static optical network.From this point of view,DCN network of ASON play more important role than original signal network.The article is based on relative standard of ITU.It focuses on the and the and the implementation of DCN in TMN and ASTN network.Meanwhile,it also covered the DCN network feature struction in ASON and discussed the DCN building plan in actual metropolis transmission networks.