topologies

Prestige institute of management

Major research project on

“Network Topologies”

SUBMITTED TO: Prof.Satish Bansal

SUBMITTED BY: Mr. Vimal Sharma and Abhishek Sikarwar (BCA 1st semester)

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WELCOMEto

THE PRESENTATIONon

NETWORK TOPOLOGY (presented by Vimal and Abhishek)(Student of BCA 1st)

Presented by: Vimal and Abhishek

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Que: what is network topology?Ans: It refers to the way computers and peripherals are configured to form networks is called network topology.


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TOPOLOGY

BUS TOPOLOGY

STAR TOPOLOGY

RING TOPOLOGY

TREE TOPOLOGY

MESH TOPOLOGY

TYPES OF TOPOLOGY


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HYBRID TOPOLOGY

NETWORK TOPOLOGIES

Network Topology (or layout) – refers to the way computers and peripherals are configured to form networks Bus topology – all computers are linked by a single line

of cable

Star topology – multiple computers and peripheral devices are linked to a central computer, called a host

Ring topology – each computer or workstation is connected to two other computers, with the entire network forming a circle

Tree Topology – A root node is connected to two or more sublevel nodes.

Hybrid Topology


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combine network layout types to meet their needs.

Bus Topology

All devices are connected to a central cable, called the bus or backbone.

There are terminators at each end of the bus that stops the signal and keeps it from traveling backwards.

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Advantages Disadvantages

Cheap and easy to implement Network disruption when computers are added or removed

Require less cable A break in the cable will prevent all systems from accessing the network.

Does not use any specialized network equipment.

Difficult to troubleshoot.

Star Topology

All devices are connected to a central hub.

Nodes communicate across the network by passing data through the hub or

switch

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Easily expanded without disruption to the network

Requires more cable

Cable failure affects only a single user A central connecting device allows for a single point of failure

Easy to troubleshoot and isolate problems

More difficult to implement

• All devices are connected to one another in the shape of a closed loop.

• Each device is connected directly to two other devices, one on either side of it.

Ring Topology

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Cable faults are easily located, making troubleshooting easier

Expansion to the network can cause network disruption

Ring networks are moderately easy to install

A single break in the cable can disrupt the entire network.

MESH TOPOLOGY

Each computer connects to every other.

High level of redundancy.

Rarely used.

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Provides redundant paths between devices

Requires more cable than the other LAN topologies

The network can be expanded without disruption to current uses

Complicated implementation

TREE TOPOLOGY

Alternative referred to as a star bus topology.

Tree topology is one of the most topology and a star tropology.

A tree topology connect multiple star network . Below is a visual example of a simple computer setup on a network using star topology.

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The addition of secondary hub is easy.

It allows the network to isolate and prioritize communication between different computers.

Time sensitive data will not have to wait for access to the network.

Increase the distance of the Signals.

Repeating strengthens transmissions

The whole connection is depend upon hub , if hub stop its working than the whole network stop the work.



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HYBRID TOPOLOGY


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Hybrid Topologies use a combination of any two or more topologies in such a way that the resulting network does not exhibit one of the standard topologies.


It is easy to fault detection andTroubleshooting.

It is easy to increase size of network without disturbing existingArchitecture.

It is designed according to therequirement of organization.

It is not easy to design this typeof architecture.

The hubs used in this topology is very costly.

The infrastructure of this is costlyThey require lot of cable and cooling systems.


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Conclusion

The Network of Topology differs from place to place. But, however, all of them have their advantages & disadvantages. If the server problem occurs or server gets down, then Topology faces its failure.


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REFERENCES

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

http://www.techopedia.com/definition/5538/network-topology

http://www.slideshare.com

Networking fundamentals(Book).


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http://www.slideshare.com/

THANK

YOU!

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