A star topology.
Topology is the structure that describes how devices in a Network are connected.Bus Topology: Directly connects all devices to network i.e utilises a single Physical medium for Data transmission between devices.Star Topology: Connects all devices in network through a Central Network connecting device such as Hubs & Switches.Advantage of Bus Topology is that less connecting cable is used.Advantage of Star Topology is that Network can function in case one or more devices fail.Disadvantage of Bus Topology is that whole Network goes down if one device fails.Disadvantage of Star Topology is that it requires physical connecting medium from Central device to the connecting device i.e more expensive.
Scalability and reliabillty of star topology makes it the best, easy to remove or add a device.
both hubs and switch can act as a center of a star topology
star topology
Scalability and reliabillty of star topology makes it the best, easy to remove or add a device.
A star topology; a network topology in which endpoints on a network are connected to a common central device by point-to-point links.
The most commonly used physical network topology is the star topology. This design features a central device, such as a switch or hub, to which all other devices are connected. It is widely used in modern Ethernet networks due to its simplicity and ease of troubleshooting.
hierarchical (extended) star topology
In a LAN, the star topology is very common.
It sounds to me like you're describing a star network.
STAR Topology