6 System Fault Handling
About This Chapter
This topic describes how to handle the following typical faults of the MA5612.
6.1 Abnormal ONU Status in GPON Upstream Transmission
This section describes what to do if an optical network unit (ONU) is abnormal when the
MA5612 uses a gigabit-capable passive optical network (GPON) port for upstream transmission.
An ONU can be an optical network terminal (ONT) or a multi dwelling unit (MDU). In this
document, the MA5612 is considered an ONU.
6.2 NMS Fails to Manage a Device
If the NMS fails to manage the device, it means that the NMS loses control over the MA5612.
6.3 The Alarm Information Fails to Be Displayed on the NMS
If the alarm information fails to be displayed, it means that the NMS server does not display the
corresponding alarm information when the MA5612 generates an alarm.
6.4 Service Board Is in the Failed State
This section describes how to troubleshoot the fault when the service board of the MA5612 is
in the failed state.
6.5 A Service Board Fails to Register
This topic describes how to troubleshoot a fault when a service board of an MA5612 fails to
register.
6.6 Repeated Board Reset
This section describes how to troubleshoot the repeated reset of a service board on the
MA5612.
6.7 Unexpected Reset of the System
This section describes how to troubleshoot unexpected reset of the system. When the system is
reset unexpectedly, all services carried on the device are interrupted and the device cannot be
managed by the network management system (NMS).
SmartAX MA5612 Multi-service Access Module
Maintenance Guide 6 System Fault Handling
Issue 01 (2012-07-25) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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