VIF drivers for VMWare.
Bases: nova.virt.vif.VIFDriver
VIF Driver to setup bridge/VLAN networking using VMWare API.
Create a vlan and bridge unless they already exist.
Plug the VIF to specified instance using information passed. Currently we are plugging the VIF(s) during instance creation itself. We can use this method when we add support to add additional NIC to an existing instance.
Cleanup operations like deleting port group if no instance is associated with it.