一种基于SDH光网络的DDN实现方案

An Implementation of SDH-based DDN Network

DDN网络为专线业务的发展做出了较大的贡献,但是,其网络的持续发展却遇到了诸多困难。文中分别论述了DDN网络和SDH网络的发展,充分考虑到SDH(MSTP)光网络的发展现状,综合DDN网络以及DDN业务自身的特点和实际情况,提出一种基于SDH(MSTP)光网络的DDN业务实现方案。该方案实现了高性价比的DDN网络的升级和扩容,解决了DDN网络的发展中遇到的诸多困难,在一定程度上又丰富了MSTP的内容。

DDN network has made great contributions to the development of Private Line Service. However, the continuing development of DDNnetwork has met a number of difficulties. This paper describes the development of DDN and SDH networks, takes into full consideration of the development of SDH （MSTP） network, and combines the features and the actual situation of DDN network and DDN service. Thus a novel implementation of SDH-based DDN network is proposed, which achieves a cost-effective upgrade and expansion of DDN network and solves many problems encountered in the development of the DDNnetwork while, to a certain extent, enriches the contents of the MSTP.