You have a Hyper-V host named Hyper1 that has Windows Server 2012 installed. Hyper1 hosts 20
virtual machines.
Hyper1 has one physical network adapter.
You need to implement a networking solution that evenly distributes the available bandwidth on
Hyper1 to all of the virtual machines.
What should you modify?
A.
The settings of the virtual switch
B.
The settings of the virtual network adapter
C.
The Quality of Service (QoS) Packet Scheduler settings of the physical network adapter
D.
The settings of the legacy network adapter
B – Bandwidth Management
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Yip, B. http://www.techrepublic.com/blog/data-center/set-bandwidth-limits-for-hyper-v-vms-with-windows-server-2012/
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Agreed with B
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I go for A. The settings of the virtual switch. See puck’s reaction in: http://www.aiotestking.com/microsoft/what-should-you-modify-77/
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Puck is wrong, simply A (virtual switch) does not have this functionallity. Option B (virtual adapter) has it, so in my opinion B is correct.
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I agree with B:
https://blogs.technet.microsoft.com/meamcs/2012/05/06/converged-fabric-in-windows-server-2012-hyper-v/
Before proceeding with converged networks creation and QoS configuration some terminologies has to be described first
· MaximumBandwidth:Specifies the maximum bandwidth, in bits per second, for the virtual network adapter. The specified value is rounded to the nearest multiple of eight. Specify zero to disable the feature.
· MinimumBandwidthAbsolute: Specifies the minimum bandwidth, in bits per second, for the virtual network adapter. The specified value is rounded to the nearest multiple of eight. For predictable behavior, you should specify a number larger than 100Mbps.
· MinimumBandwidthWeight: Specifies the minimum bandwidth, in terms of relative weight, for the virtual network adapter. The weight describes how much bandwidth the virtual network adapter intends to have in relative to other virtual network adapters connected to the same virtual switch. The range of the value is 0 and 100. Specify zero to disable the feature.
· DefaultFlowMinimumBandwidthAbsolute “To be used with Virtual Switches only set-vmswitch”: Specifies the minimum bandwidth, in bits per second, that is allocated to a special bucket called “default flow.” Any traffic sent by a virtual network adapter that is connected to this virtual switch and does not have minimum bandwidth allocated will be filtered into this bucket. Specify a value for this parameter only if the minimum bandwidth mode on this virtual switch is absolute.By default, the virtual switch allocates 10% of the total bandwidth, which depends on the physical network adapter it binds to, to this bucket. For example, if a virtual switch binds to a 1GbE network adapter, this special bucket can use at least 100Mbps. If the value is not multiples of 8 it will be rounded down to the nearest number that is. For example, input 1234567 will be converted to 1234560.
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just create an Hyper v dummy computer and a virtual switch.
You will then see there are no bandwidth management options for a switch, its just a dumb switch.
The network adapter (or the virtual network adapter) of a VM has a simple option to manage you bandtwidth.
So agreed with: Wylana
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