# (Tugas Sekolah) Topology Tree

Topology Tree

Anggota: Arief Gunawan, Devin Suryadinata

The Definition of Topology Tree:

A tree topology connects multiple star topologies together onto a common single cable

Advantages And Disadvantage of Topology Tree:

Advantages:

1: The star topology connected device on the central controller / HUB

2: This tree topology has the advantage to more able to reach longer distances by activating the Repeater function which is owned by the HUB.

Disadvantage:

The cable used become more so it required a careful planning in its settings, including the layout of the room.

This Topology has peripheral nodes

1: A network that is based upon the physical hierarchical topology must have at least three levels in the hierarchy of the tree, since a network with a central ‘root’ node and only one hierarchical level below it would exhibit the physical topology of a star.

2: A network that is based upon the physical hierarchical topology and with a branching factor of 1 would be classified as a physical linear topology.

3: The branching factor, f, is independent of the total number of nodes in the network and, therefore, if the nodes in the network require ports for connection to other nodes the total number of ports per node may be kept low even though the total number of nodes is large – this makes the effect of the cost of adding ports to each node totally dependent upon the branching factor and may therefore be kept as low as required without any effect upon the total number of nodes that are possible.

4: The total number of point-to-point links in a network that is based upon the physical hierarchical topology will be one less than the total number of nodes in the network.

5: If the nodes in a network that is based upon the physical hierarchical topology are required to perform any processing upon the data that is transmitted between nodes in the network, the nodes that are at higher levels in the hierarchy will be required to perform more processing operations on behalf of other nodes than the nodes that are lower in the hierarchy. Such a type of network topology is very useful and highly recommended.

from:

http://en.wikipedia.org/wiki/Network_topology#Tree

http://blog.uad.ac.id/pujiantoro/2011/04/08/kelebihan-dan-kekurangan-topologi-jaringan-komputer/