Description of problem: As of http://gerrit.ovirt.org/23050, mom's constant polling of getVMList causes _updateTimestamp(). This means that if a setupNetwork command disconnects the node, Vdsm would not notice that, and would not roll the configuration back. Version-Release number of selected component (if applicable): v4.16.0
vdsm-4.16.0-42.git3bfad86.el6.x86_64