If you are running the tftp program from your computer you need to make sure it has connectivity to the switch over the network.
Step 4: Copy the IOS image to the Cisco Switch If you want something permanent than you will want to setup an FTP service on a server so it is running all the time. Anytime you want to upgrade a switch just open this program. Now when you click “show Dir” it should show your IOS image. Change the Tftp64 program to use the new directory. Create a directory on your computer to store the IOS images and copy the downloaded image from step 2 to this directory. Install the program, I used the defaults.ģ. You can use an existing FTP server if you have one, if not here are the steps to configure a lightweight FTP server on your computer.ġ. I typically run an FTP program on my laptop when upgrading or configuring new switches. Have a spare device or a non critical switch to test it on.Ĭlick the download button next to the image you want to download. I still recommend you test the image before rolling it out into production. When you get to the download page you will have multiple options, Cisco will put a star next to the image they suggest, this is typically a stable release.
To download click on support then click software downloads, browse or search your model. With that said some images can be downloaded for free, I was able to download the images for the 2960cx for free. You may need a Cisco smartnet contract for your equipment to download an image. Not all IOS images can be downloaded for free. If you don’t have an account you will need to create one, the account is free. You will need to log into the Cisco website to download an IOS image. These commands are useful during an upgrade to check what version you are currently running and to verify new IOS images are loaded. Switch#show file systemīelow is a screenshot of the show flash command from my switch This command needs to be run from exec mode. If this command does not work run show file system to list the available file systems. You can also check what IOS images are loaded to the file system of your equipment by running the show flash command. show versionīelow you can see the output from my switch, it shows the current IOS version is 15.2(4)E6. To check your current switch version and model run this command. Here are the steps for upgrading the IOS using FTP. I strongly recommend testing any new images before rolling them out into production. It is recommended to keep your equipment updated, it can be risky to run an IOS image that is 2 years old.
In this tutorial, I’ll be upgrading a Cisco 2960cx switch, the steps should be the same for other IOS models including routers.Ĭisco releases new IOS images to fix bugs, security issues and to add new features. I’ll show you two methods, the 1st is upgrading IOS using FTP and the 2nd is using a USB drive. In this tutorial, you will learn how to upgrade the IOS image on a Cisco switch.
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