This index specifies which physical slot a pending remote-control command (like a reset or software download) in the command table is targeted at, using the exact same slot numbering scheme as uchasSlotTable. An admin needs to set this correctly before issuing any command through this table, since getting the slot index wrong here means the resulting hardware reset or restore-to-service action lands on the wrong physical card. For example, an admin intending to remotely power-cycle the NAC in bay 6 must first set uchasCmdSlotIndex to 6 before writing to uchasCmdFunction, or the command will act on whatever slot the index was previously left at.