I tried looking around, but I keep getting answers such to use this or use that for X device(s) and worse case sometimes it may work due to Auto-MDI/MDIX figuring out your cable.
I think I know the answer, but I just do not want to presume. So what happens when you use say a crossover cable for a network to a PC connection? Or when you use a straight-through cable on a router to router? Is there simply no connection if Auto-MDI/MDIX does not exist? If it did work would there be say intermittent connection issue or any faults on the line?
Does Auto-MDI/MDIX have any affect on resources or slow the connection or is it simply a translation in which wire standard to use?