3Com 4510G Configuration Manual page 954

Saving the current running configuration manually
Automatic saving of the current running configuration occupies system resources, and frequent saving
greatly affects system performance. Therefore, if the system configuration does not change frequently,
you are recommended to disable the automatic saving of the current running configuration and save it
manually.
If the modification to the configuration fails, or is complicated, you can save the current running
configuration manually before you modify it. Therefore, if it really fails, the device can revert to the
configuration state before the modification.
Follow the step below to save the current running configuration manually:
To do...
Save the current running
configuration manually
The path and filename prefix of a saved configuration file must be specified before you save the
current running configuration manually; otherwise, the operation fails.
Setting configuration rollback
Follow these steps to set configuration rollback:
To do...
Enter system view
Set configuration rollback
Configuration rollback may fail if one of the following situations is present (if a command cannot be
rolled back, the system skips it and processes the next one):
The complete undo form of a command is not supported, namely, you cannot get the actual undo
form of the command by simply putting the keyword undo in front of the command, so the
complete undo form of the command cannot be recognized by the device.
The configuration cannot be removed, such as hardware-related commands
Commands in different views are dependent on each other
If the replacement configuration file is not a complete file generated by using the save or archive
configuration command, or the file is copied from a different type of device, the configuration
cannot be rolled back. Ensure that the replacement configuration file is correct and compatible
with the current device.
Use the command...
archive configuration
Use the command...
system-view
configuration replace file filename
11-14
Remarks
Required
Available in user view
Remarks
—
Required