First off, the 2900XL series is a 10/100 autosensing switch.
I need to know what exactly is the model? 2912XL, 2912 MF XL, 2942XL, 2924C XL, or the 2924M XL.
I also need you to console in and type 'sho ver' (without the quotes) and copy the first paragraph in your reply. (specifically looking for version number and version type.