Tree topology is the combination of Bus and Star topology.
Here the central workstation or the hub of the Star topologies is
connected to the main Bus, along which various Star topologies are
placed via their central workstation. If any particular workstation or
the node is disrupted, then it will get isolated without affecting the
network. But if the central hub of the Star topologies goes down then
the whole section of workstation related to it also goes down.
Multiple hubs can exist which can be connected to smaller
nodes called roots in this case. This structure gives better performance
as the main hub controls the whole network.
Advantages of Tree Topology
- It is most suitable for large networks where ring and star topologies are not efficient.
- Since it divides the network in sub-parts, so it becomes more manageable
- There is no hassle in either expanding or removing the nodes.
- For individual segments there is dedicated line wiring to the local hub.
Disadvantages of Tree Topology
- The network is vulnerable as it is wholly dependent on the central hub.
- If the network becomes extremely large it becomes difficult to manage.
