There are some key performance drivers that will make sure that balanced twisted-pair channels will work perfectly well. Without these drivers, the channels will not work at all. These three are NEXT loss, Return loss for bidirectional applications and attenuation. These are also in charge of checking if there is information overload.
Depending on the information, the drivers will address these issues so that they can be resolved soon. The performance drivers are supposed to be very good. Take note that the key performance drivers may change from one tool to another. It is vital that key performance drivers will be found just to be sure.