What is Tree Topology? Advantages and Disadvantages

A tree topology is a combination of both star topology and bus topology. We know that in star topology, multiple workstation connected to a central device usually a hub and bus topology uses a common bus or backbone cable to connect multiple devices. In tree topology, many star networks connected to a backbone cable. The central device which connects all the workstations in star network is connected to a backbone cable. Tree topology is very useful when we have to connect multiple networks, for example in a college, each building has own network and we have to connect all these networks.

Tree Topology 

Here, every green sphere is a workstation and yellow sphere is a central device. These workstations are connected to central device through short black lines. And all central devices are connected to a backbone cable through long black lines.

Advantages of Tree Topology

Expansion of existing network is easy.

Other local star network does not breaks as backbone cable breakdown.

Detection and correction of faults is easy

Each device is connected to a central device through a dedicated link.

Disadvantages of Tree Topology

It requires more cabling.

If the common backbone cable breakdown, entire network will also breaks.

It is difficult to manage a tree topology, as the network increases difficulties also increases.