This identifies who or what owns/manages this VLAN's policy - typically local for a policy set directly in UCS Manager versus a value pointing at UCS Central or a service profile template when that is the source of truth. When a VLAN's settings seem to silently revert after a manual edit, this is the field that explains why - it tells the admin whether the VLAN's configuration is actually controlled by this local UCS Manager instance or by an external policy source that will overwrite local changes. A VLAN whose VLAN ID keeps reverting to a value set centrally would show a policy owner other than local, pointing the admin at UCS Central rather than the local domain.