Precautions for a restart to activate the NE database

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For WDM products, the database of an NE can be activated by a restart only. During the restart, the NE software automatically issues a warm reset command on the system control board to restore data.
Because the current configurations of the service boards may be different from the configurations in the backup file, you need to check the information consistency and then determine whether to apply the restored data to service boards.

Other related questions:
Devices that can store and back up the NE database
The NE database can be stored in the following devices: the system control board, CF card, NMS server, and NMS client.

Precautions for changing NE IDs and IP addresses on the U2000
Take the following precautions when changing an NE ID: 1. Changing an NE ID is risky because it will interrupt NE communication. 2. Before changing an NE ID, delete protection groups, fiber connections, and functions such as IPA and ALC from the NE. After changing the NE ID, restore them for the NE on the U2000. 3. Before changing an NE ID, delete the manually added monitoring relationship between the WMU board and the OTU or line board on the NE. After changing the NE ID, restore the deleted monitoring relationship on the U2000. 4. For a gateway NE, after changing its NE ID, you need to re-create fiber connections between it and other NEs and re-specify the primary gateway NE for NEs that were originally connected to this gateway NE on the U2000. 5. If the IP address of an NE is not changed before you change the NE ID, the IP address of the NE varies according to the NE ID. Once the IP address of the NE is changed, the association between the NE ID and IP address is canceled automatically. Take the following precautions when changing an NE IP address: 1. Changing an NE IP address will reset the NE. 2. After changing the IP address of a gateway NE, you need to re-specify the IP address of the gateway NE in the DCN management window on the U2000, and re-specify the primary gateway NE for NEs that were originally connected to this gateway NE.

Precautions for changing the IDs of OSN 3800/6800/8800 NEs
Pay attention to the following when changing the IDs of OSN 3800/6800/8800 NEs: Changing an NE ID is risky because it will interrupt NE communication. Before changing an NE ID, you must delete fiber connections, protection groups, and functions such as IPA and ALC from the NE. After changing the NE ID, you need to reconfigure the fiber connections and functions for the NE on the U2000. Before changing an NE ID, you must delete the manually added monitoring relationship between WMU boards and OTU boards or line boards from the NE. After changing the NE ID, you need to restore the monitoring relationship on the U2000. If the IP address of an NE is not changed before you change the NE ID, the IP address of the NE varies according to the NE ID. Once the IP address of the NE is changed, the association between the NE ID and IP address is canceled automatically.

Recommended NE database backup mode (manual or automatic)
By default, the NE database is automatically backed up every 24 hours. You are not advised to frequently back up the NE database in manual mode. Instead, manually back up the NE database in a specific required scenario, for example, after the deployment is complete.

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