I'm pretty much a newbie, but here is my situation...I want to backup the IOS on my switches, all three are 2950s, two have c2950-i6q4l2-mz.121-22.EA4.bin and one has c2950-i6q4l2-mz.121-22.EA8.binThe ones with the ...EA4.bin I can do this:enconf tin...