3com 4210 PWR 9-Port 3CR17341-91-ME ユーザーズマニュアル

製品コード
3CR17341-91-ME
ページ / 567
Management of Configuration File
69
configuration file in the device even if the device reboots or the power fails 
during the process.
CAUTION: The configuration file to be used for next startup may be lost if the 
device reboots or the power fails during the configuration file saving process. In 
this case, the device reboots without loading any configuration file. After the 
device reboots, you need to specify a configuration file for the next startup. Refer 
to “Specifying a Configuration File for the Next Startup ” on page 70 for details.
Three attributes of the configuration file
Main attribute. When you use the save [ [ safely ] [ main ] ] command to save 
the current configuration, the configuration file you get has main attribute. If 
this configuration file already exists and has backup attribute, the file will have 
both main and backup attributes after execution of this command. If the 
filename you entered is different from that existing in the system, this 
command will erase its main attribute to allow only one main attribute 
configuration file in the device.
Backup attribute. When you use the save [ safely ] backup command to save 
the current configuration, the configuration file you get has backup attribute. If 
this configuration file already exists and has main attribute, the file will have 
both main and backup attributes after execution of this command. If the 
filename you entered is different from that existing in the system, this 
command will erase its backup attribute to allow only one backup attribute 
configuration file in the device.
Normal attribute. When you use the save cfgfile command to save the current 
configuration, the configuration file you get has normal attribute if it is not an 
existing file. Otherwise, the attribute is dependent on the original attribute of 
the file.
It is recommended to adopt the fast saving mode in the conditions of stable 
power and adopt the safe mode in the conditions of unstable power or remote 
maintenance.
The extension name of the configuration file must be .cfg.
Erasing the Startup 
Configuration File
You can clear the configuration files saved on the device through commands. 
After you clear the configuration files, the device starts up without loading the 
configuration file the next time it is started up.
You may need to erase the configuration file for one of these reasons:
After you upgrade software, the old configuration file does not match the new 
software.
The startup configuration file is corrupted or not the one you needed.
The following two situations exist:
Table 38   Erase the configuration file
Operation 
Command 
Description 
Erase the startup 
configuration file from the 
storage device 
reset saved-configuration [ 
backup | main ] 
Required
Available in user view