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1.引言主动网络是一种可编程的分组交换网络,用户可以直接向网络节点插入用户定制的程序来配置或扩展网络的功能;也可以通过在报文分组中包含可执行的程序代码段,这些程序代码段由网络节点激活执行来修改或扩展网络的基础配置。主动网络的潜在优点是快速动态定制、配置网络中新的服务,提高网络的性
1. Introduction Active network is a programmable packet-switched network, users can directly insert user-specific programs to the network node to configure or extend the network functions; also can be included in the message packet executable program code segment, These code segments are activated and executed by the network node to modify or expand the basic configuration of the network. The potential advantages of an active network are fast and dynamic customization, configuring new services in the network, and improving networkability