Common layouts are: Bus network : all nodes are connected to a common medium along this medium. This was the layout used in the original  Ethernet , called  10BASE5  and  10BASE2 . This is still a common topology on the  data link layer , although modern  physical layer  variants use  point-to-point  links instead. star network : all nodes are connected to a special central node. This is the typical layout found in a  Wireless LAN , where each wireless client connects to the central  Wireless access point . Ring network : each node is connected to its left and right neighbour node, such that all nodes are connected and that each node can reach each other node by traversing nodes left- or rightwards. The  Fiber Distributed Data Interface  (FDDI) made use of such a topology. Mesh network : each node is connected to an arbitrary number of neighbours in such a way that there is at least one traversal from any node ...