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I already have the Hyper-V OS and hardware minimum requirements from Microsoft.<br />
But I have another question regarding the NIC's. <br />
I know it is recommended that each virtual machine has two NIC's. one for the management of the host and the other NIC should be bound to a virtual switch.<br />
<br />
My question is, if I plan on having three virtual machines, each with one NIC for management and one NIC for the virtual switch does that mean I just need two physical NIC's that will be shared across the three virtual machines? If one of the servers needed another NIC, does that mean I would need three physical NIC's in total. Please look at the attachment and let me know if the diagram is a valid configuration.<br />
<a href="https://filedb.experts-exchange.com/incoming/2015/06_w23/916759/HyperV.docx" target="_blank" class="file-inline" title="hyperv (34 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>HyperV.docx</a>
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HyperV.docx

I already have the Hyper-V OS and hardware minimum requirements from Microsoft.
But I have another question regarding the NIC's. 
I know it is recommended that each virtual machine has two NIC's. one for the management of the host and the other NIC should be bound to a virtual switch.

My question is, if I plan on having three virtual machines, each with one NIC for management and one NIC for the virtual switch does that mean I just need two physical NIC's that will be shared across the three virtual machines? If one of the servers needed another NIC, does that mean I would need three physical NIC's in total. Please look at the attachment and let me know if the diagram is a valid configuration.

Physical NIC requirements for Hyper-V

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.

Hyper-V

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.