. "BRIEF DESCRIPTION OF THE DRAWINGS [0019]FIG. 1 is a block diagram representing a computer system into which the present invention may be incorporated; [0020]FIG. 2 is a block diagram generally representing transmission of a packet through a computer network into which the present invention is incorporated; [0021]FIGS. 3A and 3B are a block diagram generally representing computer networks into whic" . . .