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When creating a dvPort group, which port binding option assigns a port to a virtual machine when the virtual m

When creating a dvPort group, which port binding option assigns a port to a virtual machine when the virtual machine is first powered on?

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A.
Static binding

B.
Flexible

C.
Ephemeral

D.
Dynamic binding

8 Comments on “When creating a dvPort group, which port binding option assigns a port to a virtual machine when the virtual m

  1. Tony says:

    According to :
    http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1022312

    BOTH C and D are correct! The difference is that Ephemeral ports can be also created directly on the ESXi host!


    In a port group configured with dynamic binding, a port is assigned to a virtual machine only when the virtual machine is powered on and its NIC is in a connected state.

    AND

    In a port group configured with ephemeral binding, a port is created and assigned to a virtual machine when the virtual machine is powered on and its NIC is in a connected state.




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  2. Ken says:

    How is the key word “first” relevant?
    As Tony said, according to vmware docs the only difference between dynamic and ephemeral is the ability to choose this binding directly on an ESXi host. The docs dont mention “first” powered on anywhere.




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  3. Ed says:
    1. Antti says:

      You can still select dynamic binding in ESX 5.x, but it warns you that it is deprecated and strongly suggests to use Static instead.

      In my opinion C is wrong answer because with ephemeral option there is no binding at all, instead a new port will be created each time on the host. And after the VM is shutdown the port is destroyed. So you can’t “assign” the port.

      While in dynamic binding the VM will be binding/unbinding to an already existing port.

      Some of these questions really are splitting hairs.




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