Hirschmann RS20 Reference Manual page 290

The clear config factory command deletes the SFP white
list, too.
U
copy nvram:backup-image system:image
Use this command to swap current and backup images. The backup
image (backup.bin) and current image (main.bin) will exchange the
file name, after reboot the both OS and configuration files will be
swapped.
U
copy <tftp://ip/filepath/fileName> nvram:sfp-white-list
Use this command to load the SFP white list file from a TFTP server.
Note: In order to delete the SFP white list file from the flash memory:
use the command clear sfp-white-list.
The clear config factory command deletes the SFP white
list, too.
U
copy nvram:clibanner <url>
Downloads the CLI banner file via TFTP using
<tftp://ip/filepath/fileName>.
U
copy nvram:capture aca:capture
Save the internal packet capture file to the Auto Configuration
Adapter ACA21 (file name: "capture.cap").
U
copy nvram:capture <url>
Save the internal packet capture file to a tftp URL using
<tftp://ip/filepath/fileName>.
290
4.11 System Utilities
CLI L2P
Release 7.0 05/2011