This illustrates the difference between cut-through and store-and-forward switching.
Packet Size $L = {L:KB}$ Bandwidth $R = {R:KBps}$ Processing Delay $D_proc = {Dproc:ms}$ Transmission Delay $D_xmit = L / R = {Dxmit:ms}$ Propagation Delay $D_prop = {Dprop:ms}$
Cut-Through Switching Store-and-Forward Switching (a.k.a. Packet Switching)