I have been tasked with upgrading the switches in the data center.I'm a custom to doing the upgrades locally,where i'm connected directly into the device.So what i wanted to know is what are the steps of doing it remotely
If your switch can ping the TFTP server then you may be able to copy the file into your switch.
If there is enough flash space available, you can copy the file from the TFTP to the switch (copy tftp:/// flash:).
Once copy has been completed, you can run the optional verify /md5 flash:.
You also need to change the boot variable to point to the new IOS (boot system flash:).
Hope this helps.