Wednesday, September 4, 2013

Failed to apply "Enable bandwidth management" in Windows Server 2012 and Windows Server 2012 R2 Hyper-V

When I apply "Minimum bandwidth" of "Network Adapter" which is below 10 Mbps, I found an error message.

Error applying Network Adapter changes

The operation failed.

Failed while applying switch port settings 'Ethernet Switch Port Bandwidth Settings' on switch 'VMNet 08': One or more arguments are in valid (0x80070057)

The "Minimum bandwidth" bases on the maximum bandwidth of physical NICs. For example, My Hyper-V server was installed the 1 Gbps NIC so the minimum unit is 1% (10 Mbps) of Maximum bandwidth of the physical NIC. Although private virtual switches don't connect to the physical NICs. It is also affected.
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  1. according to Technet QoS Minimum Bandwidth Best Practices:

    "The minimum unit is 1% of the link capacity. For example, if a Hyper-V Virtual Switch is connected to a 10 GB NIC, the minimum amount of bandwidth that you can allocate to a virtual network adapter connected to the switch is 100 MBPS."

    so the minimum bandwidth for the 1GB NIC would be 10 Mbps.

    1. Thanks for your information.
      I am going to update the contents.