There are certain Xen related settings you would like to configure on your NODE. You can change these settings any time from the Virtualizor Admin Panel -> Configuration -> General Settings. The following is a screenshot of the available settings :
Xen Dom0 Memory
In Xen, the host node also know as Domain-0 (or Dom0) is allocated a fixed amount of ram so that the remaining RAM is available for VPS creation. e.g. If your Node has 32 GB Ram and you allocate 1GB Ram to Dom0 then 31GB Ram will be available for creating VMs. By default 768 MB ram is allocated to the Dom0 by Virtualizor.
You can specify the Xen Bridge created by Xen here. If you have eth1 or any other device as your Ethernet device other than eth0 than Xen will create xenbr1. In such a case you will need to enter the name of the bridge created by xen. This setting configures Virtualizor to use the xenbr1 bridge rather than the default xenbr0 for the Virtual Machines network to work correctly.