OpenStack for NFV Applications: SR-IOV and PCI Passthrough

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Network Function Virtualisation (NFV) initiatives in the telecommunication industry require specific OpenStack functionalities enabled. Without entering into the details of the NFV specifications, the goal in OpenStack is to optimise network, memory and CPU performance on the running instances.

In this article we’ll see Single Root I/O Virtualisation (SR-IOV) and PCI-Passthrough, which are commonly required by some Virtual Network Functions (VNF) running as instances on top of OpenStack. 

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