Active network vision and reality: lesons from a capsule-based system

摘要

Although active networks have generated muh dbate in the researhc community,on the whole there has been little hard evidence to inform htis debate.This paper aims to rdress the situation by reproting whate we have learnd by designing,implementing and using the ANTS active network toolkit over the past two years.At this early stage,active networks have made substantial progress towards providing a more flexible network layer while at the same time addressing the peroranc eand security concerns raised by the presence fo mobile ocde in the network.in this paper,we argue our progress towards the original vision and the difficulties that we have not yet resoluved in three areas that characterize a "pure" active network: the capsule model of programma-bility; the accessiblity of that model to all users; and the applciatiosn that cna be constructed in practice.