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 ...