Based on shares, reservation, and limit, you can configure Network I/O Control to allocate certain amount of bandwidth for traffic generated by vSphere Fault Tolerance, iSCSI storage, vSphere vMotion, and so on.

You can use Network I/O Control on a distributed switch to configure bandwidth allocation for the traffic that is related to the main system features in vSphere:

  • Management

  • Fault Tolerance

  • iSCSI

  • NFS

  • Virtual SAN

  • vMotion

  • vSphere Replication

  • vSphere Data Protection Backup

  • Virtual machine

vCenter Server propagates the allocation from the distributed switch to each physical adapter on the hosts that are connected to the switch.