Bus Network

A bus network is a network topology in which all nodes (devices) are connected to a single shared communication line, called a bus or backbone. Data transmitted by any node is broadcast to all other nodes on the bus, but only the intended recipient processes it. This topology is simple and cost-effective for small networks but can suffer from performance issues as traffic increases.

Also known as: Bus Topology, Linear Bus, Shared Medium Network, Backbone Network, CAN Bus

Why learn Bus Network?

Developers should understand bus networks when designing or troubleshooting small-scale local area networks (LANs), embedded systems, or legacy industrial control systems, as it provides a foundational concept in computer networking. It's particularly relevant for scenarios requiring minimal cabling and low setup costs, such as in early Ethernet implementations (e.g., 10BASE2) or in automotive CAN bus systems for vehicle communication.

Learning Resources

• docs: Computer Network Topologies
• tutorial: Bus Topology Explained
• video: Network Topologies - Bus, Ring, Star
• tutorial: CAN Bus Protocol Tutorial