“…More generally, for the approximating NPPQ system, a class 4 packet is assigned to class 4* with probability P(4,5,6) + P(4,6,5), to class 5* with probability P(5,4,6) + P (6,4,5), and to class 6* with probability P(5,6,4) + P (6,5,4). Analogous assignments are made for class 5 and class 6 packets.…”