Management state is applicable to classic devices only. The Management State parameter appears as a dash ( — ) for MDM devices, to indicate that it is not applicable.

The management state parameter describes whether a discovered classic device is included in the managed network.

Available actions in the Manage menu depend on the NE mode, management state, and resync status.

Using the NSP to delete a device completely removes the device from the managed network. All current and historical management data is removed, for example, physical links, statistics, and backup files. If the device is discovered again, the data is not restored.

For model-driven NEs, the NE IP address remains in the discovery rule after the NE is deleted. The next time the discovery rule scans the network, it discovers and manages the device again, or you can run the discovery rule manually.

Classic NE IP addresses are removed from the classic discovery rule after the device is deleted from the NSP. These devices will not be rediscovered automatically.

Managing backups

If you are using NFM-P to back up your classic devices, you can configure retention of backups after NE deletion; see “How do I configure backup-file retention for deleted NEs?” in the NSP System Administrator Guide.

If you are using backup operations within NSP to create backups, backup files remain in the File Server after the NE is deleted. The NE must be re-discovered and managed before a backup can be restored.

You can unmanage a classic device from the NSP. Unmanage is not supported for model-driven NEs.

When a user selects Unmanage in the NSP UI, the NE is unmanaged in NFM-P. All current and historical management data is removed, for example, physical links, statistics, and backup files. If the device is managed again, the data is not restored.

If the IP address of the NE is not removed from the associated discovery rule, this NE will be re-managed in the next scanning interval.

To unmanage or re-manage a classic device, select the device in the Device Management, Managed Network Elements view. Click (Table row actions), Manage, Unmanage or Manage.

Note: If you need to unmanage and re-manage an NE with telemetry subscriptions configured, a delay of up to 15 min may occur before all telemetry subscription are reinstated.

Managing backups

When a device is unmanaged, the NFM-P deletes the backup files. Retention cannot be configured.

If you are using backup operations within NSP to create backups, backup operations are still available in the Device Management, Operations views and backup files remain in the File Server after the NE is unmanaged. The NE must be re-discovered and managed before a backup can be restored.

Available actions in the Manage menu depend on the NE mode and management state. If a management operation is in progress, actions may not be available.

The following table shows available options.