Category Archives: VM Ware

ESXI Changing NIC to vmxnet3 for CUCM 10.5 upgrade

If you have a CUCM virtual machine and you want to upgrade it to 10.5.x, you probably need to amend the NIC type from “Flexable” to “VMXNET3″. This guide shows you how its done.

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1

Shut down the node


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In VSphere, select the Host, Summary , right click on the data store and select “Browse Datastore”


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Go to the folder that contains your VM of choice. In that folder, locate the *.vmx file and download it to your pc.


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Once on your pc, open the vmx file with your favourite text editor.

Scroll down to the line “ethernet0.virtualDev – “flexible””

Change the type to vmxnet3 (lowercase)

Note:
If the line is not listed, add it at the end of the file.

Save and close the file.


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Go back to the VMhost of your VM, browse to the datastore and rename the old vmx file to prevent a duplicate


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Upload the amended vmx file from your pc back into the vmguest folder.


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In the vm guest view, right click the guest that needs amending and choose “remove from Inventory”


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Browse back to the datastore of the VM Host


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Go back to the VMhost of your VM, browse to the datastore In the vm guest folder, right click on the amended vmx file and choose “Add to Inventory”


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The server should now be visible in the vm guest overview


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Open the properties for the VM guest and verify that the settings are now set to VMXNET3

Job done.