What is computer networks topology
Computer network topology refers to the arrangement of nodes (such as computers, servers, switches, and other devices) and the connections between them in a network. There are several types of network topologies, including:
1. Bus Topology: In a bus topology, all devices are connected to a single central cable called a bus. Data is transmitted from one node to another through the bus.
2. Star Topology: In a star topology, all devices are connected to a central hub or switch. Data is transmitted from one node to the central hub, which then forwards it to the intended destination.
3. Ring Topology: In a ring topology, each device is connected to two other devices, forming a closed loop. Data is transmitted in a circular fashion from one node to another until it reaches the intended destination.
4. Mesh Topology: In a mesh topology, each device is connected to every other device in the network. This provides redundancy and fault tolerance, as data can be rerouted through alternative paths if one connection fails.
5. Hybrid Topology: A hybrid network topology is a combination of two or more different types of topologies. For example, a network may have a combination of star and bus topologies.
6. Tree Topology: In a tree topology, devices are connected in a hierarchical fashion, similar to a tree structure. This topology typically involves a main backbone cable with branches connecting to smaller subnetworks.
There are several other types of network topologies, each with its own advantages and disadvantages in terms of performance, scalability, and cost. The choice of network topology depends on the specific requirements of the network, such as the number of devices, the amount of data traffic, and the need for fault tolerance.