Types of Network Topology

TOPOLOGY: or logical form of a network is defined as the way to lay the cable to individual workstations; by walls, floors and ceilings of the building. There are a number of factors to consider to determine which topology is most appropriate for a given situation. The topology in a network is the configuration adopted by the workstations to connect to each other.

BUS TOPOLOGY

Network whose topology is characterized by having a single communications channel called a trunk bus or backbone connects to different devices or other nodes.


ADVANTAGE:

Ease of implementation
Growth and simplicity of architecture

DISADVANTAGES:

Limited channel lengths
A problem in the channel usually degrades the network

DOUBLE RING TOPOLOGY


It consists of two concentric rings where each network is connected even or more rings although the two rings are not connected to each other.

ADVANTAGE:

Architecture Simplicity
Ease of deployment and growth

DISADVANTAGES:

The channel usually degrades the network


TREE TOPOLOGY

 

It is a cable of ramifications and hierarchical information flow.

ADVANTAGE:

The wiring is point to point for individual segments
Support from a multitude of software and hardware vendors

DISADVANTAGES:

The size of each segment is determined by the type of cable if the segment falls apart.


RING TOPOLOGY

It consists of a single ring

ADVANTAGE:

Architecture Simplicity
Ease of implementation

DISADVANTAGES:

The channel usually degrades the network


STAR TOPOLOGY

 
It is the physical way in which all stations were connected to a single central node.

ADVANTAGE:

It allows the communication of the other nodes, presents means to prevent problems
Economic maintenance

DISADVANTAGES:

If the hub fails the network has no communication if the central node fails the entire network is disconnected


NETWORK TOPOLOGY

It is similar to the star topology, except that it has no central nodes.

ADVANTAGE:

Point to point wiring

DISADVANTAGES:

If the main segment fails, the entire network collapses


MESH TOPOLOGY

In which each node is connected to all nodes in this way it is possible to take messages from one node to another by different paths.

ADVANTAGE:

Offers superior redundancy and reliability
They are routable

DISADVANTAGES:

It is of low efficiency of connections and links due to the existence of redundant links