Well known feature from JunOS, now implemented by Huawei in Cloud Engines switches like CE12800, CE7800, CE6800 and CE5800. This feature will be implemented in NE routers as well, starting from V8R6 software version.
We have opportunity to choose wheter changes can be saved automatically or must wait for administrator’s confirmation:
system-view
In this case, the configuration takes effect after you run the commit command (two-phase validation mode).
system-view immediately