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Thursday, 27 January 2011

Upgrade IOS on Cisco 2960 Switch

Just a quick note on the new upgrade process for the 2960 range of switches.

Download the image file from the TFTP server to the switch. If you are installing the same version of software that is currently on the switch, overwrite the current image by entering this privileged EXEC command:

Switch# archive download-sw /overwrite /reload
The /overwrite option overwrites the software image in flash memory with the downloaded one.

The /reload option reloads the system after downloading the image unless the configuration has been changed and not saved.

The /allow-feature-upgrade option allows installation of an image with a different feature set (for example, upgrade from the IP base image to the IP services image).

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.

This example shows how to download an image from a TFTP server at and to overwrite the image on the switch:

Switch# archive download-sw /overwrite
You can also download the image file from the TFTP server to the switch and keep the current image by replacing the /overwrite option with the /leave-old-sw option.