This can be defined as a physical map or blue print of the network. That is schematic arrangements of different nodes present in the network.
There are five common topologies:
- Bus topology
- Ring topology
- Mesh topology
- Star topology
- Hybrid topology
This is the most common way of designing out network where each nodes present in the network are connected to common cable media called bus.
- Data collision when network traffic is high
- Single point of failure as cable fails entire system will go down.
- Not secure as data tapping can be done.
In this each devices is connected to each other in a ring fashion that is back to back having two neighbors.
This topology used token ring to pass the information and all the message travel through a ring in same direction.
- Single point of failure
- Unidirectional traffic flow
In this each devices is connected to each other.
- More secure as each is having its own connection with other.
- No single point of failure.
- It is expensive.
- It is practically impossible for larger network.
- The number of connection grows exponentially as number of nodes increases that is c= n * (n-1)/2
This is of again two types:
- Partial mesh
- Full mesh
In this each devices is connected to central node called switch or hub. It is hub and spoke technology.
- Single point of failure.
This is lately used which is combination of two or more topologies.
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