Hi Rodrigo - the reference to XEN is noted on page 4 of the VX9000 Installation guide noting "Installing the VX Virtualized Controller on a Hypervisor"
Ensure a Hypervisor (ESXi, Xen, Hyper V) is installed in your server environment or the downloaded .iso
image will not run.
Here is additional information noted in this official KCS article
🙂
Does the VX-9000 support XenServer v7 for VM installation?
https://gtacknowledge.extremenetworks.com/articles/Q_A/Does-the-VX-9000-support-XenServer-v7-for-VM-...