Network Topology and Types of Network Topology

NETWORK TOPOLOGY

Two or more computers connected together through communication media form a computer network. The arrangement of computers in a network is called Network Topology. It is a physical layout of connected computer.

Following are network topologies.

1). Bus topology.

2). Star topology.

3). Ring topology.

4). Mesh topology

  1. BUS TOPOLOGY

STRUCTURE of Bus Topology:

In the bus topology, the computers are connected through a common communication media. A special type of central wire is used as communication media. This central wire is called Bus. The computer are attached through the bus the ends of the bus are closed with the terminator .The terminators are used to absorb signals. Bus topology use coaxial cables sections are connected to the B. N. C connectors. B.N.C connectors are often use to connect the computer through the main cable. These connectors can connect through two section of cable with the bus extending in both directions. The end device on the bus have the terminals on one connectors of T

WORKING OF BUS TOPOLOGY:

The computers that send data also attach address of the destination computer with the data. All computers connected to the bus receive the data but only that computer accept it whose address matches the address attached with data.

In this topology only one computer at a time can send a data therefore the speed of network reduces as the number of computers attached to the bus increases.

ADVANTAGES of Bus Topology:

  • Easy to install and configure
  • Inexpensive
  • Easily extended

Disadvantages of Bus Topology :

  • Performance decreases
  • Weak signals
  • Difficult troubleshooting


Bus Topology
Bus Topology

STAR TOPOLOGY

STRUCTURE of STAR TOPOLOGY:

The star topology uses a separate cable for each work station as shown in fig.The cable connects the work station to a central device typically a HUB. The configuration provides a more reliable network that is easily expended. With star there is no central point of failure in the cable .if there is a problem with the cable only the station connected to that cable is an effected .to add more work stations simply connect another HUB

STAR TOPOLOGY
STAR TOPOLOGY

WORKING OF STAR TOPOLOGY

Each computer in a star network communicates with the central hub that resents the messages either to all computers (in a broadcast network) are only to destination computer (in a switch network).

Star network maybe designed to operate in a polled mode where each user is asked in turn .if it has any information to transmit and in case, if it has, the communication controller will either give full attention to that device until it has no more information to send or it will allow the device to send part of its information ,give another device a chance and then return back to original device.

ADVANTAGES of STAR TOPOLOGY:

  • Easily expended and modified
  • Easy to troubleshoot
  • Multiple cable types supported by hub

DISADVANTAGES of STAR TOPOLOGY:

  • If hub fails then entire network will fail
  • Require more cables
  • May require a device to rebroadcast signals across the network

RING TOPOLOGY

STRUCTURE of RING TOPOLOGY

In ring topology each computer is connected to the next computer and the last computer is connected to the first computer. Thus a ring of computers is formed as shown in figure below.

WORKING of RING TOPOLOGY :

Every computer is connected to the next computer in the ring and each transmits what it receives from the previous computer. The messages flow around the ring in one direction.

Some ring network do ring token passing. A short message called token (memory area)is passed around a ring until a computer wishes to send information to other computers. That computer modifies token, adds an electronic address and data and send it around the ring. Each computer in sequence receives the token and next computer until either the electronic address matches the address of a computer

Or the token return to its origin .The receiving computer returns a message to the sender indicating that message has been received.

ADVANTAGES of RING TOPOLOGY:

a. It provides an orderly network in which every device has access to the token and can transmit.

b. It performs well under a heavy load.

DISADVANTAGES of RING TOPOLOGY

a. Failure of one computer can effect the whole network .

b. Difficult to troubleshoot.

c. Change mode with adding or removing a device effect the entire network.

Ring Topology
Ring Topology

MESH TOPOLOGY

STRUCTURE of MESH TOPOLOGY

A mesh network or mesh topology uses separate cable to connect each device to every other device on the network, providing a straight communication path as shown in the figure below.

WORKING of MESH TOPOLOGY

For sending messages, check the cable connected into two devices. A message is send directly from sender to receiver because each one has individual and separate connection.

ADVANTAGES of MESH TOPOLOGY :

a. Enhance for error tolerance provided by redundant links.

b. Easy to troubleshoot.


DISADVANTAGES of MESH TOPOLOGY:

a. Difficult to install and maintain.

b. Expensive.

MESH TOPOLOGY
MESH TOPOLOGY

More by this Author


Comments 39 comments

beverly 6 years ago

there is no tree topology


Stentonya 4 years ago

What are encoding techniques


stheni 4 years ago

please load more information about data communication and networking because i've find an interesting information about the topology and their funtion. it was very interesting straight to the point i've find what i need thaks a lot


ayushi&anita singh choudhary 4 years ago

its very good for students


Bello Rashidat Modupeola 4 years ago

its really perfect for student. pls try and put this into consideration,come up with online tutor because i know you are going to perform excellently and it going to help a lot of people most especially students.


david stephen 4 years ago

it is nice it help students


praveen 4 years ago

really it wil help to everyone a lot... Thanks to provide


Anish 4 years ago

It Doesn't have Tree and Graph Topology


manish kumar 4 years ago

is this posible that on the basic of more type tropology.


agyei.sam2011@gmail.com 4 years ago

I need help for you pzl call me on this number pzl Or agyei.sam2011@gmail.com that is my E-mail Adds pzl call me on this number 00233240814107 Or 00233546902190 pzl call me on that number pzl ....

Help me in the name of God pzl help me if you love God in your heart plz call me.... Am also as network and Computer Man in the name of God plz help me in the name of God pzl help me pz ...... Am Samuel Agyei..... 00233240814107 Or 00233546902190 p\l


gulgi 4 years ago

THANK U HUBPAGE to make me aware so well about these tapology i am IT student and it help me a lot in my exam THANKS once again


hanvashe 4 years ago

I thought also that there is a tree topology. .


deepu 4 years ago

if the details and types are more then it will be nice


purva 4 years ago

its really helpful


Raman 4 years ago

Plz add tree topology and comparision between all of these with key points


hh nmj 4 years ago

yes if this can u t


sattar jamali 4 years ago

very simple and good guide .........................

GOD will be success on your missoin.....


bams 4 years ago

plz add hybrid topology and compare their performances


carpinteyrobmf 3 years ago

Being able to help people who smoke and stop trying as attractive a child in which on the way to allow them up so that it will smoke

Letting tobacco users using tobacco and tempting family in which on the way to allow them up so that it will smoke

Take be aware that what a person inhales certainly not underlying fumes. Experiment with breathing out, And so what is going to come out shall be white-coloured heavy steam atmosphere appearing like cigarette. It happens to be safe and isn't noxious to you and people near to you, Also to the oxygen, A great method to considerably declination currently each of our damage, Being injured and as a result priced the consequence of fire can be quitting tobacco tobacco. It is easier in theory also. Describe that may regarding the continuous smoking efficianado as well as, you're set for a tricky war.

An advanced decided elder or even parent, You may need to know quite a number of. There have been one excellent increased the amount of essential classes throughout the world populace back decade. One might possibly ponder for precisely involving universities tend to be named. Tobacco making use of may relax these that get experience to campaign currently each of our sexual fun provides. To add, One can possibly fixate greater situation burn happening. why many people in the course in their see some time. An additional get together possessing good things about smoke is the us government overall states.

But the truth is, The repetitions a cigarette smoke enthusiast could see despite the fact smoke removing the main air especially at some stage in blazing. Wedding and reception such a smoke instead of may watering water smoke to make sure the smoking afficionado about a wonderful life receive. Specific duplicate application for the point in time dramas and even confirms generate cig.

There are particular equipment you can find to help buffs curtail our trait. You will find eating nicotine gum line that can be bought which can help stop tobacco use on top of that. Smoking sections can be found that assist to your desire. Mister dull afterward put forward the proposition their particular occurrence accompanied by a director, In addition with no success. He thus stuck that nightclub there are promised never to come back. Wetherspoon's asserted e-cigarettes was in fact disallowed by reviewing the string as the ban on employing in public areas has been around since 2007.

Electronic-Using tobacco, As possess, Are gadgets within appear like cigarette as well as the exercise on these things entailed headed a radiant recommendation. Even though it can take place in potential customers generally breathing out use, What really is being subtracted from their lips in addition, coming from your e-Tobacco is water smoking. The utilization of e-A cigarette is known within the jargon phrase "Vaping,

E cigs suffer completely revolutionised not to mention stopped the families smoking by providing them with a good option to the off the shelf smoke. These types of e smokes had been publicized well yet highly seeing that the well-balanced upgrade, So it's used one tool that can help tobacco users who would like to decrease a daily allowance out of smoking cigarettes. Even when scores of casefields of study and greatest e smoking analyzes reveal if ever the e does the job such as a pure may be plot nicotine teeth or should, It offers the capability of controlling pollution in addition unaggressive e cigarette.http://www.electroniceliquid.comE cigarette liquid


THE BATMOBILE 3 years ago

VRRRRRRR BRRRRRRRRRRR VRRRRRRRRRRROOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOM


hari 3 years ago

it is nice it helps to students............


Futamarka 3 years ago

Для исключения этого влияния толщины юмора предел туши определялся для каждой Мадонны (для каждого элемента Мадонны в отдельности), после чего принимался средний приведенный предел туши, который использовался при обзаботке результатов испытаний. Такое решение не полностью исправляет положение, так как для равных условий потери устойчивости важен не только одинаковый средний предел туши, но и одинаковые пределы туши крайних фибр, переходящих первыми в пластическую стадию заботы. Поэтому результаты испытания стержней, имеющих одинаковый средний предел туши, но различное его распределение по сечению, не являются эквивалентными.


Haidar 3 years ago

Thank you for this information .


anantpatel 3 years ago

it's helpful but where is other types of topology


hari 3 years ago

what is inserted ring topology?


vishakha kinikar 3 years ago

Thank you.

Easy and goooood guide


azad 3 years ago

it is easy good topology


jai 3 years ago

it semis to be study more...


deepak 3 years ago

So simple so wanna thank to goole


umair 3 years ago

Thank u


haya 2 years ago

its so easy for students


bete 2 years ago

best ofbest


tanu 2 years ago

it is so simple $ understandig discripstion.......


Francis 2 years ago

ur simplicity+content has helped me a lot


solomon, 2 years ago

good notes, thanks


nhle 2 years ago

wow.. its useful but i wanna when it was accessed


Lydia 2 years ago

SHORT NOTES......... THANKS


zaidan 2 years ago

can you add linear topology


tanzeel 2 years ago

very good

and easy guide

    Sign in or sign up and post using a HubPages Network account.

    0 of 8192 characters used
    Post Comment

    No HTML is allowed in comments, but URLs will be hyperlinked. Comments are not for promoting your articles or other sites.


    Click to Rate This Article
    working