Hello,
The default timeout period is 10 minutes.
You can Longer the web service timeout using the the web-manager timeout command
Or change the value on the web UI.
1. Choose System > Administrator > Service Settings.
2. Enter a timeout period in Web Service Timeout.
3. Click Apply.
For details, please refer to : https://support.huawei.com/hedex/hdx.do?docid=EDOC1100068394&id=sec_admin_admin_0007&lang=en