主动网络是一种可编程的网络,用户可以对网络进行个性化的编程和设置。主动网络与传统的网络仅仅被动地传送字节流不同,它是“运行时刻可扩展的”。在主动网络体系结构中,可以快速动态地定制、配置新的网络服务和开发新的技术与协议,实现新的网络体系结构。加快了网络服务的革新步伐,提高了网络的性能,使得网络体系结构更灵活、更具有可扩张性。该文阐述了主动网络的产生背景、实现方案、体系结构和它的优点,并介绍了主动网络节点和主动网络路由器。 An active network is a programmable network where users can personalize their programming and settings. Active networks, unlike traditional networks that passively pass byte streams passively, are “run time scalable.” In the active network architecture, you can quickly and dynamically customize, configure new network services and develop new technologies and protocols to achieve a new network architecture. Accelerate the pace of innovation of network services, improve the performance of the network, making the network architecture more flexible and more scalable. This paper describes the generation background, realization scheme, architecture and advantages of active network, and introduces active network nodes and active network routers.