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TCP Cubic is designed to better utilize high bandwidth-delay product paths in IP networks. It is currently the default TCP version in the Linux kernel. Our objective in this work is to better understand the performance of TCP Cubic in scenarios with a large number of competing long-lived TCP flows, as can be observed, e.g., in cloud environments. In such situations, Cubic connections tend to synchronize...
Cloud networking typically leads to scenarii where a large number of TCP connections share a common bottleneck link. In this paper, we focus on the case of TCP Cubic, which is the default TCP version in the Linux kernel. TCP Cubic is designed to better utilize high bandwidth-delay product path in an IP network. To do so, Cubic modifies the linear window growth function of legacy TCP standards, e.g...
In a WDM network, setting up a new wavelength in a fiber requires recalibrating the other wavelengths passing through this fiber. This induces a cost (e.g., time, energy, degradation of QoS) that depends nonlinearly on the number of wavelengths using the fiber. When a set of connection requests must change their optical paths in the network (e.g., during a maintenance operation on a link in the network),...
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