I have a router in one room of my house and wires running through the house into my bedroom where it's connected to a switch that further connected to several different computers in my room. What I am wanting to know is how the traffic flows from one computer to another. If computer A sends computer B a file does the data travel from A, to the switch, and then to B? Or does the traffic from A to B travel through the switch and all the way to the router and back before going to it's inteded destination computer B? Thanks.