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VMware vCenter Cookbook by Konstantin Kuminsky

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Limiting VM network I/O consumption

The Network I/O Control (NIOC) feature allows administrators to prioritize different kinds of network traffic—determine bandwidth, relative shares value, and QoS priority.

By default, NIOC divides the traffic into the following groups, which can be viewed under the Resource Allocation tab of Distributed Switch:

  • FT traffic
  • iSCSI traffic
  • vMotion traffic
  • Management traffic
  • vSphere Replication traffic
  • NFS traffic
  • Virtual machine traffic

Administrators can create their own traffic groups and assign virtual switch ports to them. User-defined traffic groups have been introduced in vSphere 5 and are applicable only to VM traffic.

How to do it...

NIOC is a feature of Distributed Switch, which is available only with the Enterprise ...

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