Q: What does -2105D mean when I hold Option D?

In trying to run hardware diagnostics on a Macbook Pro running Lion when I hold down D the laptop just boots normally to the filevault login icons. So I tried Option D to try and get to the internet hardware test. I get the image of the earth with the exclamation mark. Below it says apple.com/support -2105D. I tried googling that error with no luck.