We generally recommend you bring any copies of any install media used to setup your computer devices that were included with the purchase of your computer as well as install media for additional software you may have installed. Bringing along this software will speed up the process of repairing your computer or reinstalling software if needed.
A pushed in port can be easily fixed by following these simple steps.
Grab your network cable and snap it back onto the triangular piece
Snap the triangular piece back on.
Your pushed in port is now fixed.