Research On The Networking Strategy Of Packet-enhanced Optical Transport Network And Its Application In Government-Enterprise Dedicated Business

As the speed of the LTE and PON access networks increases and contents of applications further enriches,new business such as Cloud Computing,Big Data and Internet of Things are growing rapidly,which results explosive increase of network traffic and exponential growth of bandwidth demand.With the development of enterprise informatization and government-affair electronization,group client private line should be equipped with high quality transport channels with low delay and high security,and be able to quickly dredge from end to end,in order to better grab group clients.However,due to their technical flaws,existing transmission network such as SDH/MSTP,PTN/IPRAN or traditional OTN cannot be the perfect unified bearer network for IP-services with broad bandwidth,low delay and high security.Disparate transmission network can only carry its corresponding services,increasing the installing and operating costs of transmission network infrastructures,which definitely goes against the convergence of transmission network and end-to-end interconnection.By introducing key techniques of Pe-OTN,analyzing network strategy and discussing applications of government-enterprise dedicated business in Pe-OTN,this thesis comprehensively elaborates techniques and economic advantages of Pe-OTN.This thesis mainly includes the following three aspects:1.We elaborate architecture and key techniques,especially unified line cards,Information Exchange Protocol(IEP)based unified cross collection,MPLS-TP,network protection,OAM function,synchronous system and QoS configuration,which are more suitable for the architecture and development of future transmission network.2.According to the characteristics of Pe-OTN technology,through the analysis of Mobile services,broadband services,government-enterprise dedicated business and research on the status of local transport network,and according to the results of the Pe-OTN testing,put forward the Pe-OTN networking strategy of different scale local network,provide the construction strategy of Pe-OTN in different stages,make it easier to implement,closer to reality.3.Aiming at the present situation and developing trends of the government-enterprise dedicated business,by technical and investment analysis on present network,highlighting the Pe-OTN network carrying advantages,we point out the advantage and the solution of network evolution of Pe-OTN as network of direct line between government and enterprises.