how to update cisco switch ios

When I first had the chance of upgrading the IOS on Cisco switches I was terrified. It’s best to practice these situations in a lab environment to build up confidence, plan, and document the process.

Requirements:
1.Cisco switch
2.Console cable
3.PC running with ftp or tftp server
4.One Lan cable

Before upgrading the IOS, verify the version and switch model.