1-3
Switch 4210 do not support the safe mode. When you are saving a configuration file using the save
safely command, if the device reboots or the power fails during the saving process, the configuration
file will be lost.
Three attributes of the configuration file
z 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.
z 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.
z 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.
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.
Table 1-3 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
You may need to erase the configuration file for one of these reasons:
z After you upgrade software, the old configuration file does not match the new software.
z The startup configuration file is corrupted or not the one you needed.
The following two situations exist:
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