Working With Software Images; Image Location On The Switch; Tar File Format Of Images On A Server Or Cisco.com - Cisco WS-C3750-48PS-S Software Configuration Manual

Working with Software Images

Working with Software Images
This section describes how to archive (download and upload) software image files, which contain the
system software, the Cisco IOS code, and the Cluster Management Suite (CMS) software.
Note Instead of using the copy privileged EXEC command or the archive tar privileged EXEC command, we
recommend using the archive download-sw and archive upload-sw privileged EXEC commands to
download and upload software image files. For switch stacks, the archive download-sw and archive
upload-sw privileged EXEC commands can only be used through the stack master. Software images
downloaded to the stack master are automatically downloaded to the rest of the stack members.
To upgrade a switch with an incompatible software image, use the archive copy-sw privileged EXEC
command to copy the software image from an existing stack member to the incompatible switch. That
switch automatically reloads and joins the stack as a fully functioning member.
You can download a switch image file from a TFTP, FTP, or RCP server to upgrade the switch software.
You can upgrade your switch through CMS by using either TFTP or HTTP. For more information, select
Note
Administration > Software Upgrade in CMS.
You can replace the current image with the new one or keep the current image in flash memory after a
download.
You upload a switch image file to a TFTP, FTP, or RCP server for backup purposes. You can use this
uploaded image for future downloads to the same switch or to another of the same type.
The protocol that you use depends on which type of server you are using. The FTP and RCP transport
mechanisms provide faster performance and more reliable delivery of data than TFTP. These
improvements are possible because FTP and RCP are built on and use the TCP/IP stack, which is
connection-oriented.
This section includes this information:
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For a list of software images and the supported upgrade paths, refer to the release notes that shipped with
Note
your switch.

Image Location on the Switch

The Cisco IOS image is stored as a .bin file in a directory that shows the version number. A subdirectory
contains the files needed for web management. The image is stored on the system board flash memory
(flash:).
Catalyst 3750 Switch Software Configuration Guide
B-20
Appendix B
Image Location on the Switch, page B-20
tar File Format of Images on a Server or Cisco.com, page B-21
Copying Image Files By Using TFTP, page B-22
Copying Image Files By Using FTP, page B-25
Copying Image Files By Using RCP, page B-29
Copying an Image File from One Stack Member to Another, page B-34
Working with the Cisco IOS File System, Configuration Files, and Software Images
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