NetScaler Gateway VPX runs on a server virtualization platform that offers the same functionality as the physical appliance.
The following figureshows the architecture of NetScaler Gateway VPX:
For example, you install NetScaler Gateway VPX on the hypervisor. The virtual appliance then uses drivers to access storage and network resources. NetScaler Gateway VPX appears to users as an independent NetScaler Gateway appliance with its own network identity, user authorization and authentication capabilities, configuration, and data. The virtual computers use the paravirtualization technique, which presents a software interface to virtual computers that is similar but not identical to that of the underlying hardware. This technique enables the virtual computers and the hypervisor to work together to achieve high performance for I/O and for CPU and memory virtualization.