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Saving the configuration data
A C-PLUG is an exchangeable storage medium for storing the configuration data of the device.
This allows fast and uncomplicated replacement of a device. The C-PLUG is taken from the
previous device and inserted in the new device. The first time it is started up, the replacement
device has the same configuration as the previous device except for the device-specific MAC
address set by the vendor.
A C-PLUG stores the current information about the configuration of a device.
Note
The device can also be operated without a C-PLUG.
How it works
Operating mode
In terms of the C-PLUG, there are three modes for the device:
• Without C-PLUG
The device stores the configuration in internal memory.
This mode is active if no C-PLUG is inserted.
• With unwritten C-PLUG
If an unwritten C-PLUG (factory status or deleted with Clean function) is used, the local
configuration already existing on the device is automatically stored on the inserted C-PLUG
during startup.
This mode is active as soon as an unwritten C-PLUG is inserted.
• With written C-PLUG
A device with a written and accepted C-PLUG uses the configuration data of the C-PLUG
automatically when it starts up. The requirement for acceptance is that the data was written
by a compatible device type.
If there is configuration data in the internal memory of the device this is overwritten.
This mode is active as soon as a written C-PLUG is inserted.
Operation with C-PLUG
The configuration stored on the C-PLUG is displayed over the user interfaces.
If changes are made to the configuration, the device stores the configuration directly on the
C-PLUG, if this is in the "ACCEPTED" status and in internal memory.
Response to errors
Inserting a C-PLUG that does not contain the configuration of a compatible device type and
inadvertently removing the C-PLUG, or general malfunctions of the C-PLUG are indicated by the
diagnostic mechanisms of the device.
• Fault LED
• Web Based Management (WBM)
• SNMP
SCALANCE XF-200G
Operating Instructions, 02/2023, C79000-G8976-C676-01
Description of the device
3.5 C-PLUG
27
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