Huawei MA5800 Alarms and Events Handling

FAQs of Document Use When Handling Huawei MA5800 Alarms and Events 

This alarm and reference document, if used flexibly, can help you to rectify the faults quickly, thus improving maintenance efficiency and facilitating the management of alarms and events in the system.

Q1: How to enter the special CLI mode

A1: The following considers the FAN mode as an example to describe how to enter the FAN mode:

1. Click a command in the steps.
   
   
2. In the interface that is displayed, you can see the mode of the command. The User Guide describes how to enter this mode.

Q2: Why is the recovery alarm not displayed after the fault is rectified

A2: The following situations may occur:

• This alarm is an ADMC alarm caused by an ADMC fault. After the ADMC fault is rectified, the system does not generate a recovery alarm. Therefore, manual operations are needed. You can run the alarm active clear command to clear the alarms that are not recovered in the system.
• The system checks the faults periodically. The system generates a recovery alarm only after detecting that the faults are rectified.

Q3: How to search for an alarm or event in the document

A3: You can follow one of the following two methods to search for an alarm or event.

• Search for an alarm or event according to the alarm ID or the event ID.
• Search for an alarm or event according to the name of the alarm or event.

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How to Replace an Huawei ONU Rapidly?

How to Replace an Huawei ONU Rapidly?

To replace a faulty optical network unit (ONU) on a live network, you need to reload the configurations after the replacement or back up the data before loading the configurations. The operations are complicated and prone to errors. Using the network management system (NMS) to replace the ONU improves the efficiencies in device replacement and configuration loading, and at the same time reduces the error probabilities. There are five steps for replacing an ONU rapidly.

1. Configure automatic backup policies and automatic upgrade policies. (This is the prerequisite of the replacement.)
   • After the automatic backup policy is configured, the device backs up data at the configured time. The latest backup database will be used during the replacement.
   • After the automatic upgrade policy is configured, the NMS will create an automatic ONU upgrade task to upgrade the ONU if the ONU version is different from the target version set in the automatic upgrade policy.
2. Replace the ONU and power on the ONU to ensure that the optical link on the device is normal.
3. Start the ONU replacement operation on the NMS.
4. Bind the MAC address of the new ONU on the NMS.
5. Check the configurations and verify the services after the replacement.

In step 1, you only need to configure the automatic backup policy and automatic upgrade policy once. To replace ONUs in future, you only need to rebind the ONU MAC addresses on the NMS.

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