|  | 5.6 | Basic Topologies Used in Networking
| 5.6.2 | Linear bus network topology
Mathematical Perspective The bus topology has all of its nodes connected directly to one link, and has no other connections between nodes Physical Perspective Each host is wired to a common wire. In this topology, the key devices are those that allow the host to join or tap into the single shared medium. One advantage of this topology is that all hosts are connected to each other, and thus, can communicate directly. One disadvantage of this topology is that a break in the cable disconnects hosts from each other. Logical Perspective A bus topology enables all networking devices to see all signals from all other devices, which can be an advantage if you want all information to go to all devices. However, it can be a disadvantage because traffic problems and collisions are common.