Based on this thread in late 2017
where I received an answer that for same cluster is not possible and no other answers regarding instead its feasibility....
Even it is technically possible to have the same management network in two IP subnetworks,
this would create a knot in my head because a logical network represents usually a layer 2 network in oVirt.
What is the drawback of having a cluster with its own management network per server farm?
Often it happens that you have to work in pre-existing environments where network (and not only) rules are already established and restricted and not under your control.
In my case it happened that there were already in place dedicated networks for putting mgmt in site 1 and site 2 and that they were different ranges and also there wasn't a unique layer2 network transported across both sites....