Instability Phenomena in Underloaded Packet Networks with QoS Schedulers
نویسندگان
چکیده
Instability in packet-switching networks is normally associated with overload conditions, since queueing network models show that, in simple configurations, only overload generates instability. However, some results showing that instability can happen also in underloaded queueing networks appeared in the recent literature. Underload instabilities can be produced by complex scheduling algorithms, that bear significant resemblance to the Quality of Service (QoS) schedulers considered today for packet networks. In this paper, we study with fluid models and with adversarial queueing theory possible underload instabilities due to strict-priority schedulers and to Generalized Processor Sharing (GPS) schedulers.
منابع مشابه
Instability Phenomena in Underloaded Packet Networks with QoS Schedulers
Instability in packet networks is normally associated with overload conditions, since queueing network models show that, in simple configurations, only overload generates instability. However, some results showing that instability can happen also in underloaded queueing networks appeared in the literature. Underload instabilities can be produced either by customer routes that visit several time...
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