* Star topology
* Bus topology
* Ring topology
* Token ring topology
* Hybrid topology
* Mesh topology
Topology means Structure of computer network or Design of computer network.
Star topology:
In star topology all the systems are connected to a central device which may be hub or switch.
Advantage: If one computer cable is broken or damage then other computers will not be affected i.e Network is not affected.
Diadvantage: If central device (hub or switch) stops working then whole company network is blocked (any system can’t communicate with each other).
Bus Topology:
In bus topology all the systems are connected to a single cable/channel or back bone .Computers are connected with this cable using BNC connector or T connector.At the both ends of cable Terminators are connected.
Advantage: Cheap and Easy to implement.
Disadvantage:If terminators are not connected or open then data will bounce back.
Ring Topology:
In ring topology each computer is connected to each other .ie every system is connected to their next system in form of ring .
Advantage: Easy to install and easy to troubleshoot.
Disadvantage: If one of the computer goes down or if one of the cable break between two machines then whole the network is down.Data packets can’t go further.
Token Ring Topology:
In token ring toplogy, all the systems are connected to a central device ”MSAU” multiple station access unit Hub.
Token ring is 802.5 standard.
Developed by IBM
Has a unique token passing access method.
Contains an “electronic signal” which constantly rotates in MSAU hub.
Here if one computer needs to send a packet to other then this packet from source machine is taken or attached to token(electronic signal) and forwarded or takes to the destination address machine.
Disadvantage: If this central device (MSAU) stops working or fails then whole the company network is down or all the systems connected can’t communicate with each other.
Hybrid Topology:
Mesh Topology:
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