Chapter 60 MAINTENANCE
XMG1915 Series User’s Guide
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60.3.2  Filename Conventions
The configuration file (also known as the romfile or ROM) contains the Zyxel factory default configuration 
settings in the screens such as password, Switch setup, IP Setup, and so on. Once you have customized 
the Switch’s settings, they can be saved back to your computer under a filename of your choosing.
ZyNOS (Zyxel Network Operating System sometimes referred to as the “ras” file) is the system firmware 
and has a “bin” filename extension.
You can store up to two images, or firmware files of the same device model, on the Switch. Only one 
image is used at a time.
•Run the boot image <1|2> command to specify which image is updated when firmware is loaded 
using the Web Configurator and to specify which image is loaded when the Switch starts up.
• You can also use FTP commands to upload firmware to any image.
60.3.2.1  Example FTP Commands
ftp> put firmware.bin ras-0
This is a sample FTP session showing the transfer of the computer file "firmware.bin" to the Switch’s 
Firmware 1.
ftp> get config1 config1.cfg
This is a sample FTP session saving the Switch’s configuration file 1 (Config1) to a file called “config1.cfg” 
on your computer.
If your (T)FTP client does not allow you to have a destination filename different than the source, you will 
need to rename them as the Switch only recognizes “config” and “ras”. Be sure you keep unaltered 
copies of both files for later use.
Be sure to upload the correct model firmware as uploading the wrong 
model firmware may damage your device.
60.3.3  FTP Command Line Procedure
1 Launch the FTP client on your computer.
2 Enter open, followed by a space and the IP address of your Switch.
3 Press [ENTER] when prompted for a user name.
Table 196   Filename Conventions
FILE TYPE INTERNAL NAME EXTERNAL NAME DESCRIPTION
Configuration File config1
config2
*.cfg This is the configuration filename on the 
Switch. Uploading the config file replaces 
the specified configuration file system, 
including your Switch configurations, 
system-related data (including the default 
password), the error log and the trace log.
Firmware ras *.bin This is the generic name for the ZyNOS 
firmware on the Switch.