Since we are a small shop without the means to have a test environment, I often find myself using the live equipment after hours for testing. I'm always backing up configs to the tftp, testing a different config, and then just restoring the old config. Is there any reason I can't do a "copy running-config backup-config," then work on my test config, the do a "copy run test-config" and then do a "copy backup-config run" when I'm done for the night? Then I could have my test config all ready to go for the next round without mucking around with the tftp.
Just a thought. Anyone got any arguments against it? Does it even work that way?