NoteThe following procedure is necessary only if you cannot reconnect the severed link in a timely manner. If you can reconnect, the dual master condition resolves itself. The formerly broken portion of the stack reboots and the nodes come up as standby nodes.
If you have unsaved configuration changes, take care when selecting the stack segment to be rebooted. You should reboot the segment that has the smaller System UpTime.
If you know the node that was master of the unbroken stack, you can reboot the stack segment that does not contain this master node. Otherwise, determine the System UpTime shown by each master node.
If the System UpTimes of both masters are the same, you can reboot either segment without loss of unsaved configuration changes. If the System UpTimes of both masters differ, you must reboot the segment with the smaller System UpTime.