下一代网络(NGN)互通框架模型的探讨

主要从网络分层的角度探讨了NGN和各种网络之间互通的实现方法。首先给出了NGN的互通功能模型，然后重点探讨了NGN与PSTN、H．323 VoIP网络以及IN网络的互通模型，分析了NGN和上述各种网络在传输层、交抛佳路层、应用层和网络资源4个层面上实现互通的要求和方法。

Research on Interworking Architecture Model of NGN

This paper discusses the methods to achieve Interworking between NGN and various networks from the perspective of hierarchical network. First, this paper gives the Interworking functional model; then, emphasizes on the study of NGN and PSTN, H.323 VolP network and IN network Interworking model, analyzing the Interworking requirements and methods to realize interworking between NGN and above networks in various layers, including transport layer, exchange / routing layer, application layer and network resources layer.