[Users] Same VLAN id, for different physical networks.

Hey, in my ovirt datacenter, I have two physical networks (one I use for access, and one is internal for runing backups etc). They have different IP addresses, but are created with same VLAN ids on both physical networks. When I try to add those two networks in ovirt i get a (when I try to add a VLAN with id 4): Error: The specified VLAN ID (4) is already in use. Anyone had simmilar issues and is there a way to fix this? -- Mvh Alfred Angelov