Figure 1-3: Elements of a Network Client application Server Application Message(Frame) Access Switch Line 2 Client Server 6 Computer Wireless access Switch Points connect unk 3 Wireless Stations Line to switches Client Switch Outside World Wireless Access Point Router11 Figure 1-3: Elements of a Network Wireless Access Point Mobile Client Router Outside World Server Computer Client Computer Switch 1 Switch 2 Switch 3 Switch 4 Message (Frame) Access Line Trunk Line Client Application Server Application 6. Wireless Access Points Connect Wireless Stations to Switches