Saving The Current Configuration - 3Com MSR 50 Series Configuration Manual

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HAPTER ILE
Saving the Current
Configuration
M C
YSTEM ANAGEMENT ONFIGURATION
Main/backup attribute of the configuration file
A main configuration file and a backup configuration file can exist simultaneously
if the device supports main/backup configuration file attribute. As such, when the
main configuration file is missing or damaged, the backup file can be used
instead. This increases the safety and reliability of the file system compared with
the device that only supports one configuration file. You can configure a file to
have both main and backup attribute, but only one file of either main or backup
attribute is allowed on a device.
The following three situations are concerned with the main/backup attribute:
When saving the current configuration, you can specify the file to be a main or
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backup or normal configuration file.
When removing a configuration file from a device, you can specify to remove
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the main or backup configuration file. Or, if it is a file having both main and
backup attribute, you can specify to erase the main or backup attribute of the
file.
When setting the configuration file for next startup, you can specify the
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main/backup attribute of the file.
Startup with the configuration file
If the device does not support main/backup configuration file, namely, only one
configuration is allowed, the following steps are taken during startup:
1 If you specify a configuration file and this file exists, the device will initialize its
configuration based on this file.
2 If you specify a configuration file but this file does not exist, the device will:
Initialize with the default configuration file if it exists;
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Or initialize with empty configuration if the default configuration file does not
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exist.
If the device supports main/backup configuration file attribute, it takes the
following steps during startup:
1 If the main configuration file exists, the device initializes with this configuration.
2 If the main configuration file does not exist but the backup configuration file
exists, the device initializes with the backup configuration.
3 If neither the main nor the backup configuration file exists, the device will:
Initialize with the default configuration file if it exists;
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Or initialize with empty configuration if the default configuration file does not
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exist.
You can modify the configuration on your device at the command line interface
(CLI). To use the modified configuration for your subsequent startups, you must
save it (using the save command) as a configuration file.
Modes in saving the configuration
Fast saving mode. This is the mode when you use the save command without
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the safely keyword. The mode saves the file quicker but is likely to lose the