Chapter 36 Maintenance
GS1920 Series User’s Guide
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36.7 Technical Reference
This section provides technical background information on the topics discussed in this chapter.
36.7.1 FTP Command Line
This section shows some examples of uploading to or downloading files from the Switch using FTP
commands. First, understand the filename conventions.
36.7.2 Filename Conventions
The configuration file (also known as the romfile or ROM) contains the factory default 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.
36.7.2.1 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.
ftp> get config config.cfg
CPU history Click Download to see the CPU history log report. The 7-days log is stored in
RAM and you will need to save it, otherwise it will be lost in even of Switch
shutdown or power outage.
Memory Section Click Download to see the memory section log report. This log report is stored
in flash memory.
Mbuf Click Download to see the Mbuf log report. The log include Mbuf over threshold
information. This log report is stored in flash memory.
ROM Click Download to see the Read Only Memory (ROM) log report. This report is
stored in flash memory.
Table 139 Management > Maintenance > Tech-Support
Table 140 Filename Conventions
FILE TYPE INTERNAL NAME EXTERNAL NAME DESCRIPTION
Configuration File config *.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-0 (Firmware 1)
ras-1 (Firmware 2)
*.bin This is the generic name for the ZyNOS
firmware on the Switch.
