How to upgrade a Cisco switch from another switch?
A Cisco switch can be upgraded from another switch by using tftp.
Make the latest switch as a tftp server and copy image from the switch.
Connect two switches and provide IP address to access them.
Use console cable to connect the switches.
Make latest switch as tftp server.
Enter configuration commands, one per line. End with CNTL/Z.
*Note : c2960s-universalk9-mz.150-2.SE8.bin :- System image file to be copied.
That’s it the switch is now become a tftp server.
Copy system image from tftp-server that you just created.
Switch_testing2#copy tftp: flash:
Address or name of remote host ? <ip address of your tftp-server-switch>
Source filename ?<image name that should be copied>
Destination filename[<image name that should be copied>]?
Now the switch will copy the specified image file from the switch.
After the copy has completed set the boot file for the switch.
Switch_testing2(config)#boot system flash:
Reload the switch.
System configuration has been modified. Save? [yes/no]: yes
Proceed with reload? [confirm]
Switch will reload using the new image.
If you want to delete old image use the command