What is osi model in networking? 7 OSI layers explained with real examples | osi vs tcp/ip model

What is osi model ? 7 OSI layers explained with real life example | osi vs tcp/ip model
#osimodel #osivstcpip #networking
📢📢 Subscribe to my FREE newsletter "Normal I.T. Guy" to know more about what I am thinking, learning and doing in my career & life !!
CLICK THE LINK BELOW 👇👇👇
anshultiwari.substack.com
**Do check out our popular playlists**
1) Networking and Infra Concepts - • Networking & Infra Con...
2) Crunching Data Series (2020) - • Learn - Data Engineeri...
3) Google Cloud Platform Beginner Series (2020) -
• Google Cloud Platform ...
4) Latest technology tutorial (2020) -
• What is a Data Vault ?...
Hi Friends, I am Anshul Tiwari, and welcome to our youtube channel ITkFunde.
More about this video -
In this video, we will learn the fundamentals of the OSI model. Open System Interconnect (OSI) model is a framework that divides all network communication into 7 distinct layers. Each layer has a specific role to play in network communication.
These 7 layers (from bottom to top) are: -
1. Physical
2. Data Link
3. Network
4. Transport
5. Session
6. Presentation
7. Application
So in this video, we will learn the very basics of osi model using a real-life example and understand how a sender sends and the receiver receives the data via the network.
Also, we will understand what are Protocol Data Units (PDUs) and how data changes while it flows through each layer of osi model. We will also know the famous protocols of each layer like http, ftp, smpt,tcp, udp,ip etc. We will come to know which device falls into which layer like routers, firewalls, VPNs, proxies, etc.
At the end, we will learn the basic difference between osi and tcp/ip model. Hope this video gives you a new perspective of learning the osi model.
Credits & Resources -
images - pixabay.com
**Social Links**
Facebook - / itkfunde
Linkedin - / ansh9685
Twitter - / ansh9685
Blog - blogs.itkfunde.com/
Instagram - / itkfunde
**About This Channel**
Friends ITkFUNDE channel wants to bring I.T related knowledge, information, career advice, and much more to every individual regardless of whether he or she belongs to I.T or not. This channel is for everyone interested in learning something new!

[@syedsalimuzzaman5596]

I have been in IT Industry for over 25 Years, more than a decade of teaching experience but I couldnt expain better than this guy, hats off man you are doing good job keep it up, always deliver new technolgies.

[@ITkFunde]

Thank you Syed Sir, coming from a senior means a lot pls keep supporting 🙏

[@poojajaiswal4699]

When someone appreciate on @Anshul Tiwari's videos, really a big smile comes to my face, Thankyou Anshul Sir for your great effort on such videos🙏

[@ITkFunde]

Thank you Pooja means a lot 🙏🙏☺️☺️

[@rajeshminnikanti6661]

@@ITkFunde sir, CLN provide training only on Networking right..

[@cassouwassou7364]

I am glad you decided to take on that task for the OSI model. You are one of the best teachers I have seen for these subjects. Makes it fun, interesting and relatable. Amazing work.

[@kabeermirza055]

This man is on another level of teaching. Like before this video I was completely a newbie, but after watching this video my way of thinking completely changed on how our data is transferred from one place to another.
Edit: I've passed my CCNA 200-301 on the first go. To the guys out there who also want to earn this certification, My man will help you get your base stronger as it is the most important part of starting something from scratch.

[@ITkFunde]

Thanks Kabeer ☺️

[@TheExhilaratedMan]

Right brother

[@thomasedison4937]

He sure knows best how to explain in a way one would clearly understand...
Kudos ✊ to I.T.K FUNDE💜💜💜

[@kabeermirza055]

@@thomasedison4937 I just want to tell you that I have passed my CCNA 200-301 this year. No doubt when I commented on this video I was a complete newbie, but this guy and some others like: Network Chuck, Keith Barker, David Bombal, got my back, and helped me get my CCNA on the first attempt. Thank you @itkefunde

[@ITkFunde]

Thanks Kabeer congratulations of this great news all the best.

[@pralaynathgendaswamy8662]

The amount of effort you put in, complemented by your level of knowledge and understanding, is clearly remarkable. Not to mention that anyone hardly cares about trivial details such as light exposure, etc. when they have some quality stuff that keeps them glued to the screen. Thank you so much!

[@komalsingh9467]

No body ever taught OSI Model this way. This was so nicely articulated. Thank you so much :)

[@omari6184]

I just subscribed to your channel. I remember learning this back in 2006, just got promoted to a PC System Administrator and needed a refresher. The way you explain and teach in Layman's terms is a genius. I understood it technically but never fully grasped the understanding and applying it to a real world situation. Keep up the Great work!

[@ITkFunde]

Thanks a lot !!

[@pravingate3683]

This video saved my more time in understanding same concept with reading books.. thanks for making such video's on basic concepts..

[@ITkFunde]

Thanks Pravin 🙏🙏☺️☺️

[@doublea3040]

This guy is amazing in my opinion.

[@ITkFunde]

Thank a lot Mate

[@mugisharichardstone]

The most excellent presentation on OSI Model, that I have seen in my more than 10 years of IT profession experience. I immediately subscribed hahahahaha

[@TouchNetXD]

omg, this guy is the best he has a huge ability to explain things!!!

[@AlejandroGarcia-te1mm]

I'm just a computer engineering student getting into computer networks and after reading the ISO/IEC 7498-1 and watching a lot of videos about the OSI Model all I can say is this is beautifully explained. Thank you.

[@JayaLakshmi-zr8rz]

Your way of delivering the topic is amazing. The analogy u drew between the layers n army ranks was superb. I many a times read books to understand this OSI layers but it is your lecture that helped me in remembering the layers n functions of each, all in one shot. Thanku

[@nemeziz_prime]

Really loved this explanation. Really amazing teacher !!! Wish we had such creative teachers in college

[@kalyanisrivastva3974]

You have taught me, what 4 years of college couldn't!!! Thank god you made a youtube channel! THANK YOU SO MUCH💐🥇

[@topvidz3334]

You did an amazing job in explaining the network layers. This is the first time I am able to understand the concept clearly. Thank you!

[@hendrickkone679]

You never fail to amaze, brilliant teacher!

[@ebubefelix5794]

I got hooked from one video, and this made me furious with my lecturers just handing out notes and teaching trash!! .... Well-done, keep it up, best learning process I've undergone in a while.

[@ITkFunde]

Thanks Ebube 🙏☺️

[@EricZepeda320]

I feel like i'm ready for my CompTIA A+ exam after watching this! Great real life example explanation, it really helped me interpret the protocol!

[@kevinwinters5426]

WOW! I have learned more from watching two of your videos than from almost 10 years in IT! I am so excited to keep learning from you! I am a new subscriber

[@AbhishekSharma-ev7vu]

Great work man ! Continue spreading the goodwill and knowledge in simpler way ! Tons of thanks

[@NeumsFor9]

It's all about analogies and reach based on commonality......and then reinforcement of those concepts into tech terms. Well done.

[@robertroy1435]

Impressive. I've watched a lot of videos about the OSI 7 layer model. This one is the best.

[@trenholmelodge1820]

this is the most specific and understandable video on how the OSI model works that I have seen. It gets away from the 'abstract" explanation that most presenters use to explain and show the actual sequence of events and what specifically happens at each level/. thank you so much will watch your other videos.

[@ukeshism]

You got me as a subscriber..watched hours of countless videos and it is this video that actually got me to understand how devicea communicate eventually..the real life simulation helped a lot..thank you

[@CocoBunnyXxX]

I can’t tell you how incredibly helpful your videos are. Thank you so much for putting the time and energy into making these ❤

[@ITkFunde]

Thanks Ana 🙏♥️☺️

[@BKL1994]

Wow !!! I am just a beginner , had tried other videos with millions hits , but could hardly understand what I really wanted to understand . Saw one of the video of this channel and then followed it up with this one and I must say now I want to learn my networking from here only . Respect sir 🙏

[@ITkFunde]

Thanks Ankit for your lovely feedback I am just a learner like you. Thanks for your support 😊

[@rekhanatarajan6149]

u love teaching …great brother....a house wife like me don't have time to sit and study....u have helped me a lot and my sincere thanks to u...please keep going...

[@iswaryalakshmi1307]

I had never seen such a good and clear explaining teacher i had watched many vedios of osi model but u only enlighted me..u really blessed with a good skills of explaining

[@ITkFunde]

Thanks Iswarya ☺️🙏

[@emmanuellaedeh9363]

You are an amazing teacher, the best so far to explain this concepts easily. Thank you

[@nithinyr2737]

been in IT for 8 years and worked as an IT admin..first time ever i understood OSI concept clearly
thank you for teaching and god bless you :)

[@ramanamurtykarri1737]

I have gained the best knowledge in one video. Your data collection and explanation are like a cakewalk. 👌❤

[@mayankjain5549]

Anshul, This video is a masterpiece. The analogy used makes concept so intuitive. Amazed how so many aspects are covered in such short video. Great work !!

[@RockRedStar]

You explained it very well. I clearly understand the osi model. Now I don't need to cram it. Thank you sir.

[@ITkFunde]

Thanks Gourav

[@ange1vega]

I GOTTA SAY I HAVE LEARNED SO MUCH IN YOUR VIDEOS, YOU ARE AWESOME AT TEACHING!!! THANK YOU SO MUCH!!!!

[@abhirajsingh3071]

had to stop in the middle of the video to say how good the explanation is and the analogy used is so useful to understand how the different layers work together in the OSI model

[@darjab1987]

Thank you so much for this video and as I have mentioned earlier that I am new to this and looking forward to persue networking as an upgradation. Can this video be considered as the first step to the networking course?? as I could understand the layers because of the easy examples used as always 👍

[@ruatfelihauhnar2983]

This is the best explanation... I was like 'oh this is it, it was tough back then'

[@ITkFunde]

Thanks Ruatfeli🙏☺️

[@aljalloh1]

I have been watching multiple videos on this topic, this is the best.

[@zulayemane7262]

You are extraordinary as usual no one can explain it like you are doing .

[@jamiek128]

I have a big interview tomorrow and this was a great refresher. Thank you so much. I love your content

[@audvasa5687]

Thank you so much for your generosity to share your knowledge. The way you explain the topic help me a lot to understand. I really appreciate the way you try to simplified the topic and make the topic to be understand.

[@ITkFunde]

Thank you Aud!! for your generous support and kind words. 🙏☺️

[@iamchandrasekharreddy2294]

Sir, Hatsoff is the only word i can say after watching your explanation.

[@ITkFunde]

Thanks Chandra 🙏

[@anjanip7424]

sir, I have know all concepts but never ever seen a video like this before, it is crystal clear.... you explained very well in layman terms...now I got more clarity ever before..

[@ITkFunde]

Thankyou so much

[@ShivaniSingh-no1ub]

Best explanation of osi and tcp/ip model till date that I have come acrossed. Great work!!

[@ITkFunde]

Thanks Shivani ☺️♥️🙏

[@khansaleemkhan7403]

You got some next level teaching stuff, please carry on so that I can refresh my knowledge ❤❤

[@ITkFunde]

Thanks Saleem

[@johncarroll993]

Brilliant clear and simple explanation. Best I have seen.

[@theother9941]

I can't tell you how awesome this video is! Thanks again!

[@sujata0902]

Wow awesome, I just started to learn networking and I am bit confused about understanding of OSI model, but you did awesome job. Thanks lot

[@zuberkariye2299]

Would like to see a vid where u talk about how ports and protocols works?

[@kunalkulkarni29]

best explanation of OSI model i ever had.

[@smartswaggy6114]

Kudos to you man. I have never thought a person can explain and teach like this. You have motivated me to become teacher lol. Btw I'm in engineering lol

[@autolancegega599]

❤ Hats of to you. I come from an industrial electrical background.As a matter of interest , I enrolled in a bac program from an online university, but I was not able to grasp the concept ofOSI MODEL. You made it so easy for me to understand.

[@ITkFunde]

Thanks ☺️

[@ZubairKhan-fp7pj]

Awesome.. Very simplified and effective teaching methods, material, and training delivery ❤

[@drawingideas1237]

wow man, you nailed it. i am currently watching this video and i will be writing my Data Communication exam tomorrow, now i understand the OSI better than never before . Thank you very much

[@ITkFunde]

Thanks Mojalefa all the best !!!

[@toddmaek5436]

This is some of the best content on this subject I have ever seen. And I've been in rooms with "the big guys" lol

[@prahulkrikprahul7633]

Such a kind man teaching concept in very understandable manner. Keep posting interesting education content 👍

[@spurshlaserclinc3795]

Hi, your videos are such a easy way to understand and realy realy helpful. Thanku somuch

[@danyoda8542]

he helped me a lot. Thank you very much.

[@bijuvp3]

All the videos really helpful understanding the basics.. can you pls upload tutorials on (practical side) GENERAL Configurations and each field meant for what in a router configuration in a firm has a few LAN inside .

[@rahulswami1275]

Beautiful presentation on the OSI and TCP/IP models. May God bless you for the knowledge you share.

[@ITkFunde]

Thank you Rahul 🙏☺️

[@praradr]

Hello Sir Just to draw your attention about HTTPS protocol covered in SSL video where you had mentioned HTTPS as a part of transport layer and here it's a part of session layer. Hope you will have a look on it.

[@bishwalimboo5739]

Most easy video to understand with a practical example. Thank you very much for your effort.

[@nikolasls4]

Thank you very much, i love your pedagogie.

[@ITkFunde]

Thanks Nicolas🙏

[@khushbutiwary6166]

I was searching for a video for good understanding about the layers. finally found this video. You made it really easy to understand. thank u

[@ITkFunde]

thanks Khushbu

[@seb_is_class8107]

You are on another level and I now call you TEACHER. THank you

[@ITkFunde]

Thanks Jedi 🙏☺️

[@yuvabhagvatkathakarshriyag9305]

thanks for correlating the networking devices corresponding to its layers. This is indeed great content! Keep up the good work..

[@ITkFunde]

Thanks Yagnik

[@adadnan3741]

Thank you Sir. This video relieved my SAR DARD. now I can sleep peacefully.

[@SuperCookie011]

You are incredible! Explanations are detailed and clear. Thanks.

[@ITkFunde]

Thanks a lot 🙏☺️

[@MrCristianperez5]

Learned something new today. Thank you

[@somebodyoulove]

Best explanation of OSI and TCP/IP model. I enjoyed every bit of it. Thank you.

[@leandrobiff]

Thank you for the video and for sharing the knowledge.

[@gopalakrishna3363]

You are delivered lecture at top notch level!! Really fantastic.

[@ITkFunde]

Thanks Gopala

[@Abhishekverma-xk3sp]

best osi model explanation on internet till date. Thanks

[@ITkFunde]

Thanks Abhishek 🙏☺️

[@mensahenock1438]

A very excellent presentation, hope to watch more videos from you on networking.

[@ITkFunde]

Thanks Mesah

[@agbaiobasi7390]

This is the best explanation in the history of mankind.

[@nemostarlight7415]

lol, He has excellent story telling skills other than presentation skills and networking skills. I finally understood it.

[@ITkFunde]

Thanks Nidhi ☺️🙏

[@shadihassan1344]

just wow...
I really do respect the time, effort, information and perfection this man has done in these multiple videos I have just seen for like 3 hours on a row
good job my friend! keep it up!

[@ITkFunde]

thanks Shadi means a lot 🙏❤️

[@user-uy2ft4qm6d]

Thank you so much for your explanation, it much appreciated and understandable

[@shashikanthgoud6856]

Thank you sir for simplifying OSI MODEL

[@RameshKumar-yk4kl]

Just now i entered into networking Team. This video is really incredibly awesome.
Thank you so much sir.

[@evijayy]

Best way of teaching OSI Model. Thank you very much

[@ITkFunde]

thanks

[@gopikrishna2985]

i saw many videos on osi model ,they teach us definations only,but your explanation is another level.
now i am able to know, what is osi in practical manner , thank you so much sir ,such a amazing stuff
thank you ,we will support you

[@ITkFunde]

Thankyou Gopi 🙂🙏

[@sandyg8142]

Seen a lot's videos on the OSI moble but this the best explanation about it and you made it so simple and understandable sir 🙌👍

[@student_of_life9656]

Thank you for explaining the OSI model in detail.

[@ruchimishra7440]

what an explanation.. the analogy is superb and a never seen before!

[@ITkFunde]

Thanks Ruchi :)

[@icecoldjking5175]

This guy is awesome …I love his explanation,I’ve watched up to 30 videos and I understand nothing

[@user-bw5yh5bm7s]

god bless you, man! this class is awesome!!!

[@bhoopendrasingh8185]

Thank you so much for explaining reference model in such a beautiful way. Wonderful efforts.

[@akhilmachaan5010]

I underestimated you in the beginning, but you are one of the best teachers in youtube.

[@sameervishawakarma4236]

great video, you perfectly explain the OSI model. really impressed. Thank you

[@thelauraaura]

This is the best explanation I've seen. So detailed and broken down so that even a five year old can understand it

[@ITkFunde]

Thankyou Nyenooke☺️

[@u2lover10]

Excellent, I really enjoy your videos! you have an awesome talent! Keep it up! and thanks!

[@anittagg]

Well prepared and flow of teaching is superb. Thanks Sir

[@ITkFunde]

Thanks Presteena 🙏☺️

[@shansundaresan]

Once again thanks for the simple and excellent narration 👌👍

[@ITkFunde]

Thanks Shan🙏☺️

[@iox9110]

you are an amazing teacher! God Bless you!

[@ITkFunde]

Thanks Dear🙏

[@prairnakoul]

Thankyou so much sir.. I have many seen many videos and had doubts but you cleared all of them... it was best tutorial So far and very easy to understand .you got my respect!!

[@ITkFunde]

Thanks Prairna :)

[@tangieonealgeneral3331]

The video helped a great deal. Lighting was not too bad. You speak really fast at times though. I'd like to see more videos on algorithms.

[@sofii515]

No words to say thanks to you . what a great job and how you made everything so simple. Respect from London bro.

[@ITkFunde]

Thanks London is beautiful... I was in UK for 7 years ❤️

[@vishaltiwari9348]

Sir ..🎉 That's really awesome Explaination. Thank you for your brilliant efforts.

[@md.nadimulislam3624]

Sir you are absolutely fabulous. Outstanding teaching technic.

[@ITkFunde]

Thanks buddy♥️