From the course: VMware vSphere 8 Certified Technical Associate - Data Center Virtualization (VCTA-DCV) (1V0-21.20) Cert Prep

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Virtual switch features: Network I/O Control

Virtual switch features: Network I/O Control - vSphere Tutorial

From the course: VMware vSphere 8 Certified Technical Associate - Data Center Virtualization (VCTA-DCV) (1V0-21.20) Cert Prep

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Virtual switch features: Network I/O Control

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- [Rick] In this video we'll learn how network IO control can be used to enforce shares, limits and reservations on network traffic. And so the purpose of network IO control is to allow us to utilize controls for resources like shares and limits and reservations for different types of network traffic. And this is a feature that's only supported on the vSphere distributed switch. Network IO control allows us to ensure that certain types of traffic are granted sufficient bandwidth. For example, in this diagram shown here, virtual machine traffic is granted twice as many shares as iSCSI traffic is, and shares are only going to be enforced when resource contention occurs. So during periods where bandwidth is scarce, virtual machine traffic will have access to twice as much bandwidth as iSCSI. We can also use network IO control to set limits or to reserve a specific amount of bandwidth for some type of traffic. We can also create network resource pools based on port groups. Now I can…

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