I was wondering why you can set your speed to a static entry and your duplex to auto or set your speed to auto and your duplex to static? This would be on IOS. I thought I recalled back on CatOS it would give you an error message if you tried to set one static and the other auto. So what type of configuration would you want this half static/half auto settings?
I think if found my answer....
"Never mix a hard set and an auto command on the same interface. For example, the speed auto and duplex full commands should never be issued on the same interface. "
Kind of odd it lets you put the commands in if you shouldn't be able to use them....