[ovirt-users] Is a dedicated oVirt mgmt VLAN still needed for oVirt host nodes?

We have an oVirt environment that I inherited. One is running 3.4.0 and one is running 3.5.0. Seem in both cases the prior administrator stated that a dedicated VLAN was necessary for oVirt mgmt. That is, we could not run multiple tagged VLANs on a nic for a given oVirt host node. Does any of this make sense? Is this true? Is it still true for more contemporary versions of oVirt? My problem is that our nodes are blades and I only have two physical nics per blade. In our network for redundancy we need to have the two nics have the same VLANs so that things failover ok. Which means we have to share the oVirt mgmt network on the same wire. That's the ideal. Currently we have a whole nic on the blade just for oVirt management. Is this a requirement?