How do I unmanage or re-manage a device?
Purpose
Use this procedure to unmanage or re-manage a classic device from the Device Management, Managed Network Elements view.
Nokia recommends performing a backup from NSP before unmanaging a classic device; see How do I back up an NE?. Backups taken using this method are retained in the NSP File Server after unmanaging the device, whereas any backups taken from the NFM-P are removed from the NFM-P server