Isolamento de tráfego em ambientes virtualizados

Henrique RodriguesPaolo SoaresJose Renato SantosYoshio TurnerDorgival Guedes

Providing effective bandwidth isolation for virtual machines in a sharedinfrastructure is still a hard problem for modern datacenters. In this paperwe present and evaluate a distributed rate control system that supports networklink bandwidth garantees for multiple co-located customers in a virtualized datacenter.The proposed solution provides network performance isolation acrosscustomers by enforcing link bandwidth allocations for both egress and ingressnetwork traffic at each physical host. Experiments on our Xen-based prototypeimplementation in a datacenter cluster demonstrate effective control of linkbandwidth for both TCP and UDP traffic, and for a Hadoop-based applicationrunning concurrently with streaming workloads.

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