IEEE/ACM Transactions on Networking (TON)
User-oriented QoS analysis in MPEG-2 video delivery
Real-Time Imaging - Special issue on real-time digital video over multimedia
Software Agents for Future Communication Systems
Software Agents for Future Communication Systems
An active scheduling paradigm for open adaptive network environments: Research Articles
International Journal of Communication Systems
Active and Programmable Networks for Adaptive Architectures and Services
Active and Programmable Networks for Adaptive Architectures and Services
WF2Q: worst-case fair weighted fair queueing
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 1
A survey of active network research
IEEE Communications Magazine
Internet telephony: services, technical challenges, and products
IEEE Communications Magazine
Support for resource-assured and dynamic virtual private networks
IEEE Journal on Selected Areas in Communications
Real-time voice over packet-switched networks
IEEE Network: The Magazine of Global Internetworking
IEEE Network: The Magazine of Global Internetworking
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Active and Programmable networks change the functionality of intermediate nodes by using agents and active packets. This paper presents a novel packet scheduling scheme called Active Scheduling to maintain QoS in virtual private networks (VPNs) within the domain of adaptive and programmable networks. In Active Scheduling agents on the router monitor the accumulated queuing delay for each service. In order to keep the end-to-end delay within the bounds, the weights for services are adjusted dynamically by agents on the routers spanning the VPN. If there is a rise or fall in queuing delay of a service, an agent on a downstream router informs the upstream routers to alter the weights of their queues. This keeps the end-to-end delay of services within the defined bounds and offers better QoS compared to VPNs using static WFQ. The paper describes Active Scheduling, and presents simulation results and these are compared with WFQ.