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).
Performing Loopback on a CPOS Interface
Context
Running a loopback test affects system performance. After finishing the detection, run the undo loopback command immediately to disable loopback.
Procedure
- Run the system-view command to enter the system view.
- Run the controller cpos cpos-number command to enter the CPOS interface view.
- According to the type of the interface to be detected, choose one of the following commands to enable loopback.
In the case of a CPOS interface, run the loopback { local | remote } command.
In the case of the E1 channel of a CPOS interface, run the e1 e1-number set loopback { local | remote } command.
In the case of the T1 channel of a CPOS interface, run the t1 t1-number set loopback { local | remote } command.
By default, loopback is disabled on an interface.