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Log in to the vSphere Client and select the host from the Inventory panel.
Go to Networks
From the Actions menu, select Add Networking.
Select Virtual Machine Port Group for a Standard Switch and click Next.
Select New standard switch or select one of the existing vSwitches. The selected vSwitch should attach to the service network, which holds the VLANs for the VMs. Click Next.
In the Connection settings section, enter a Network label to identify the port group you are creating.
Note: The network label can contain up to 63 characters
For the VLAN ID, select "All (4095)". Click Next.
Check that the vSwitch is configured correctly and click Finish.
This port group will be used when receiving DHCP tagged demands requests from deployed VMs.