清华大学计算机科学与技术系,北京,100084
纸质出版:2002
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周悦芝, 张尧学, 王勇. 一种基于XML的主动应用程序描述符AADX[J]. 电子学报, 2002,30(S1):2057-2060.
ZHOU Yue-zhi, ZHANG Yao-xue, WANG Yong. AADX: A New Active Application Descriptor Based on XML for Active Network[J]. Acta Electronica Sinica, 2002, 30(S1): 2057-2060.
传统网络只能依照预先定义的协议被动地传输数据.随着网络应用的不断扩大
新的用户需求和应用也不断涌现
而新的协议及服务却很难在现行网络上快速实施.主动网络为解决传统网络存在的问题提供了一条新思路.主动网络的主要优点是用户可以根据需要向网络节点中插入程序
以完成定制的网络协议和服务.因此
主动刚络的核心功能是按照用户要求识别
传输
加载并运行主动应用程序
以完成用户所需要的计算.本文提出了一种基于XML的主动应用程序描述符AADX(Active Application Descriptor based on XML).该描述符可以用来标识主动程序并为其传输和加载提供基础.它为主动网络提供了一种有效灵活的主动程序识别和分发机制.
Traditional networks can only transport data passively according to the predefined protocols. With the extemiun nt network applications
new requirements are demanded on the network by end nseis. However
it is difficult to deploy new network protocols and services quckly in traditional networks. Active networking provides a novel way to solve the problems of traditional networks.Programs can be inserted into the nodes of active networks to perform customized computation.Therefore
the core functionality of active networks is to identify
transfer
load and execute active applications to perform the computation required by the end naem. This paper presents a new active application descriptor based on XML named as AADX(Active Application Descriptor based on XML)
which can be used as a common method of identifying active applications and a basement for transferring and loading. It provides an effective and flexible identification and distribution mechanism of active applications in active networks.
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