a broadband cable network for determining a common bit - loading modulation scheme for communicating between a plurality of nodes in the bcn is disclosed . the bcn may include a transmitting node within the plurality of nodes where the transmitting node is capable of sending a probe signal to the plurality of nodes , and at least one receiving node within the plurality of nodes in signal communication with the transmitting node . the at least one receiving node is capable of transmitting a first response signal in response to receiving the probe signal . the first response signal includes a first bit - loading modulation scheme determined by the at least one receiving node . the transmitting node is further capable of determining the common bit - loading modulation scheme from the first response signal .