Stable User-Defined Priorities
IEEE INFOCOM 2017 - IEEE CONFERENCE ON COMPUTER COMMUNICATIONS(2017)
摘要
Network providers now want to enable users to define their own flow priorities, and commercial devices already implement this ability. However, it has been shown that directly applying arbitrary user-defined priorities can fundamentally destabilize a network.In this paper, we show that it is possible to apply user-defined priorities while keeping the network stable. We introduce U-BP, a scalable approach that extends backpressure-based scheduling techniques to service user-defined flow priorities and rates while maintaining throughput optimality and strong network performance. We explain how our approach relies on a dual-layer scheme with an exponential convergence to requested priorities. We further prove analytically the network stability of our solution, and show how it achieves a strong performance for high-priority flows.
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关键词
network providers,commercial devices,arbitrary user-defined priorities,network stable,scalable approach,user-defined flow priorities,requested priorities,high-priority flows,network performance,backpressure-based scheduling techniques,U-BP
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