Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Troubleshooting Roadmap
Figure 2-1 shows the troubleshooting procedure. All possible causes of a fault can be grouped into multiple cause sets to reduce problem complexity. Systematic troubleshooting is to find fault causes step by step, and finally resolve the fault.
A fault can be detected on the user side (for example, the user cannot access the Internet) or on the network side (for example, an alarm is generated on the device). After a fault is detected, you need to collect the fault information about each device immediately, analyze the fault information, and then locate and rectify the fault. For solution-level troubleshooting on the entire network, the key is to quickly locate the fault to a component based on the fault symptom and then rectify the fault.