Sunday, December 28, 2014

What is Tree network or Tree topology?

            In a Tree network several  devices or computer are linked in a hierarchical fashion as shown in figure. Tree network is also know as Hierarchical network. This type of  distribution system is commonly used in the organization where headquarters communicate with regional office and regional offices communicate with district offices & so on.
            It is easier to add new terminals or branches of it because the tree network divided into sub-units.



Advantages of Tree Network:

i)                    Fault Isolation
It is very easy to diagnose the defective terminals, simply disconnect the whole branches of the network from the main structure. This makes it easier to isolate a defective terminals.

ii)                  Easy to extend
It is easier to add new terminals of branches of it because the tree network divided into sub-units.

Disadvantages of the Tree Network:

i)                    Dependent on the Root

As the problems arises in star network, same reliability problems arises in the Tree network, because if the ‘head end’ device fail to operate, the entire network is rendered in operable.+