网络的IP化趋势及其挑战与对策

网络的IP化是其发展的趋势，同时又面临着三大挑战：IP骨干网交换速度太慢造成网络瓶颈；IP网络不能提供适合运营要求的服务质量（QoS）；IP网络的可生存性（Survivability）问题。文章对以上三个问题进行了综述，着重阐述了解决挑战的方法与设想，并进一步给出了研究与发展的方向。最后对IP网络的发展与挑战进行了展望。

Development,Challenge and Strategy of IP Networks

This paper discusses that IP networks would be the tendency,and at the same time IP networks meet three challenges:The bottleneck made by low switch speed of backbone networks,Necessare QoS can not be support by IP networks,The survivability of IP networks.In this paper,It gives an introduction to the former three problems,and focusse on the resolving methods and suppose.It analyses the direction of researeh and development.At last,This paper looks over the development and challenge of IP networks.