3Com 3C16791B-US User Guide - Page 19

Priority Queuing is the ability of a network to give and maintain certain throughput levels for different applications depending on the priority assigned to that application. At excessive loads a packet with a higher priority will take a greater precedence over a lower prioritised packet. Automatic MDI / MDIX this feature automatically detects which wiring practice that has been followed with regard to the TP cable, ie if the TP cable is a 'straight through' wired cable or a 'crossover' wired cable. The automatic MDI / MDIX feature within the Switch will detect and compensate accordingly. 18