Quick Reference Guide

Getting Started | 45
For information on the SSL and SSH files listed above, see the Secure Communications folder on the
S-Series Documentation and Software CD-ROM.
Points to Remember when Transferring Files
Points to remember when downloading software code or configuration files include:
• Code:
— In SFTOS 2.5.1.x , a download of SFTOS overwrites SFTOS code in the designated
section of flash memory, denoted by the
copy command with the location names image1
and image2.
• Configuration:
— Configuration is stored in NVRAM.
— Active configuration is distinct from the stored configuration.
— Changes to active configuration are not retained across resets unless explicitly saved.
— A download replaces the stored configuration.
— A download is stopped if a configuration error is found.
• Upload code, configuration, or logs.
• File transfer uses Xmodem or TFTP depending on platform.
• Specify the following TFTP server information.
— IP address
— File path (up to 31 characters)
— File name (up to 31 characters)
• Progress of the TFTP transfer is displayed.
• Use
dir nvram (Privileged Exec mode) to display the files stored in NVRAM.
Downloading a Software Image
After you have set up the hardware, determine if you need a software upgrade. An S-Series switch is
shipped with the base Layer 2 software installed, but you might need to install either a more recent image
or the optional, extended Layer 3 image.
Execute one of the “show” commands, such as
show hardware, show switch, or show version, that display
the currently running software version:
Note: For the migration to SFTOS Version 2.3 and above from versions below 2.3, see the
Release Notes that accompanies the software release, because a software upgrade includes
an automatic conversion of the binary configuration file to text.
Note: SFTOS Version 2.5.1 introduces support for dual software image management on the
switch, so that you can download a new image and keep it on the system without installing it
until you are ready. You can also keep the previous image on the system if you need to revert
to it.