Cisco Systems 2950, 2955 Downloading an Image File By Using TFTP

B-21

Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide

OL-10101-02

Appendix B Working with the Cisco IOS File System, Configuration Files, and Software Images

Working with Software Images

Downloading an Image File By Using TFTP

You can download a new image file and replace the current image or keep the current image.

Beginning in privileged EXEC mode, follow Steps 1 through 3 to download a new image from a TFTP

server and overwrite the existing image. To keep the current image, omit Step 3.

The download algorithm verifies that the image is appropriate for the switch model and that enough

DRAM is present, or it stops the process and reports an error. If you specify the /overwrite option, the

download algorithm removes the existing image on the flash device whether or not it is the same as the

new one, downloads the new image, and then reloads the software.

Note If the flash device has sufficient space to hold two images and you want to overwrite one of these images

with the same version, you must specify the /overwrite option. The Catalyst 2950 LRE switch supports

only one complete set of Cisco IOS, HTML, LRE binary files, and one Cisco IOS binary file on the flash

device. You cannot have two complete image sets on the flash device.

Command Purpose

Step 1 Copy the image to the appropriate TFTP directory on the

workstation. Make sure that the TFTP server is properly

configured; see the “Preparing to Download or Upload an Image

File By Using TFTP” section on page B-20.

Step 2 Log into the switch through a Telnet session.

Step 3 archive download-sw /overwrite /reload

tftp:[[//location]/directory]/image-name.tar

Download the image file from the TFTP server to the switch, and

overwrite the current image.

• The /overwrite option overwrites the software image in flash

with the downloaded image.

• The /reload option reloads the system after downloading the

image unless the configuration has been changed and not been

saved.

• For //location, specify the IP address of the TFTP server.

• For /directory/image-name.tar, specify the directory

(optional) and the image to download. Directory and image

names are case sensitive.

Step 4 archive download-sw /leave-old-sw /reload