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This topic describes the process of handling an emergency fault.
Procedure
1.Check whether the device runs properly.
The fault of a hardware device causes service congestion. Therefore, ensure that the hardware device runs properly before handling any emergency fault. The methods used for checking hardware devices are as follows:
ϒ⁄Check whether the power supply of the unified gateway runs properly. That is, check whether the shelf and boards inside the shelf are powered on.
ϒ⁄By viewing the indicators or alarm information, check whether all the boards are functioning properly.
If the fault is a device fault, proceed to 2. If the fault is not a device fault, proceed to 4.
2.Handle the device fault.
If the system fails to work and you have confirmed that the unified gateway crashes, handle the fault immediately according to the predefined scheme. You can also follow the procedure in Handling a Device Crash or Handling a Board Crash.
3.Make sure that the fault is rectified.
After handling the emergency fault, verify that the fault has been rectified in the ways such as by the NMS, dial test and service verification. That is, verify that the device functions properly and the service recovers.
ϒ⁄If the fault is rectified, proceed to 7.
ϒ⁄If the fault is not rectified, proceed to 6.
4.Handle the service fault.
If the system fails to work and you have confirmed the service fault, handle the fault immediately according to the predefined scheme. You can also follow the procedure in Handling Global Service Congestion or Handling Partial Service Congestion.
5.Make sure that the fault is rectified.
ϒ⁄If the fault is rectified, proceed to 7.
ϒ⁄If the fault is not rectified, proceed to 6.
6.Obtain technical support.
If you fail to rectify the fault following the emergency fault handling process, collect related fault information and contact your service provider for technical support.
Note down the detailed fault handling operations you have performed, and ask your service provider to provide the new component(s) if required according to the warranty terms. In this way, the time for subsequent fault handling can be shortened.
7.Output a fault handling report.
After verifying that the fault has been rectified, record the fault handling process and output a fault handling report.
Parent Topic: General Guideline