The Aruba VSF is a technology that virtualizes multiple physical devices into one virtual fabric. This provides high availability due to a significant reduction in recovery time and simplified network design and management. VSF allows. In this article we will see how to Configure VSF on Aruba 5406Rzl2 Core Switch. Once the switch reboots into VSF mode and assumes the Commander role, configure one or more ports as the initial VSF link: Connect the VSF link cable (s). VSF and VSX are networking protocols that enable several switches to function as one. However, they do this in quite different ways. Lets talk about both these technologies one by one and also compare these with each other. VSF allows supported switches to behave like a single chassis switch.