An acronymn I use to remember the OSI model: Probably (physical) Didn't (data link) Need (network) Those (transport) Stupid (session) Packets (presentation) Anyway (application)
These videos make sense because majority of lecturers try to be ridiculous in how they treat these topics so we have more people confused about these concepts and these gives the videos relevance.
My god, our teacher had nearly the entire class lost in this topic for 4 straight days, yet you simplified it and made it easy to understand in 8 minutes. Bless you. He just kept on going back and forth between steps and mixing in other shit the entire time that we just felt lost. He would often bring something that should be taught next week in today's lecture that made no sense. Thank you. EDIT: You got a new sub!
I created personal study notes for myself out of this video and it took me nearly an hour. The information density in this video is crazy, in a good way. Extremely helpful, thank you very much!
Thank God I discovered this channel. This is the best teaching method or pattern so far. What I couldn't understand in two weeks, I got it here clearly. You got a new follower today. Thank you ❤
My schools explanation for this was absolutely horrible not to mention breezed by like it was a easy 2+2=4 concept. This video is amazin for those who need to visualize the information. I now graduated with my Bachelors not fully understanding this which is not good obviously. But this video made 1000% sense and i now understand it fully with 5 pages of notes. Recomended to anyone who is going through classic college courses, excellerated courses, or already done with school. Subbed and Liked
It took 1 hour of this certain subject from my class while this is like 8 minutes and I understood this better. I swear to God, these college universities are trying to lengthen time on purpose to make use of our tuition fee.
I like this channel Very much. Well classified graphical representation make it easy to understand . A novice learner like me can gain some knowledges from your lessons. Thank you 💕💕💕💕.
Thank you again RealPars !!! Great Video, i was just learning OSI model and here you post this video at the same time :) It would be very helpful though if you could please make a video to explain for exemple a Modbus TCP communication (Or whichever protocol you want) and see each layer what it contains !!
Still wish people talked about the unofficial 8th Layer. But thank you for this. Have a job interview coming up and when it comes to the actual job, I just never even think about OSI.
Great visual guide to translate something so complex (as we thought). Thank you for this very informative video! Question: Why do they start at the top from the Application side of things rather than start at the Physical layer and work your way up? Thanks again
Because data to send is created at the application layer, sent down to lower layers then at destination the opposite happens. When receiving data it comes from the lower layers up to the application layer from there to user application. Lower layers are abstracted, when you're coding an application you only interact with the application layer. So maybe they start at 7: - because is the one you code in when writing software - because is the one closer to where data is produced or consumed by software - because it's easier to understand the needed service offered by network protocol to software; sub layers solve not direct software needs, but solve caveauts that apper when trying networking. Lower levels are needed to make the service magically work at the application level, with conundrum arising when trying to network (data loss, packet loss, integrity, retransmission, security, routing, interference) solved magically by "somebody else" at inferior levels, and not a need per se. When codong at application level, you ignore if lower levels encrypted and decrypted data, modulated and demodulated, packeted and restreamed, resent on timeouts, received in different order and sorted again, passed trough different physical media (radiowave, electrical signals on copper wires, light pulses in fiber optics) many times. At application level, you just pour data in and get data back. Remainder is magically handled for you by lower levels. That said, when i was tought this during 2002, they started from level 1, tough! Lol! Maybe because i studied electronics not programming, and layer 1 was paramount in that context?
in my work I learn part of this for a joke, my boss told me "This is an error 8" I did not understand so they talked me abou OSI I look for it but found out there are just 7, the number 8 is one common problem, the user, as a tech support or programmer you should know this is a big problem sometimes 😂, btw. Great video it helped me for my class.
@1:20 you mention ethernet and show twisted pair and mention fiber optic separately, when ethernet can be carried over fiber and fibre channel can use twisted pair cables.
There is stuff in this video that is either not explained properly or just false. Encryption can happen at more than just the presentation layer (e.g. IPSec and TLS) and ARP is a data-link layer protocol.
Thew OSI Model is just a model. Actual implementation can use parts of the model or collapse various levels into one. The OSI model, when developed, was an attempt to create a single framework for all protocols. In some respects, it succeeded. In others, not so much. As networks and protocols advanced, functionality was shifted between layers to improve throughput and reliability. The model is still valid from a basic understanding of communication, and that is what was presented in this video.
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I am interested in IP address classes and subnetting
An acronymn I use to remember the OSI model:
Probably (physical)
Didn't (data link)
Need (network)
Those (transport)
Stupid (session)
Packets (presentation)
Anyway (application)
Thank you for sharing, David!
Thank you
Haha this is epic!
Epic
All People Should Try New Diet Pepsi
These videos make sense because majority of lecturers try to be ridiculous in how they treat these topics so we have more people confused about these concepts and these gives the videos relevance.
00⁰000⁰
My god, our teacher had nearly the entire class lost in this topic for 4 straight days, yet you simplified it and made it easy to understand in 8 minutes. Bless you.
He just kept on going back and forth between steps and mixing in other shit the entire time that we just felt lost. He would often bring something that should be taught next week in today's lecture that made no sense.
Thank you.
EDIT: You got a new sub!
That's amazing to hear! Thank you very much for sharing
what my teacher couldn't explain in 2 weeks , you explained it in a matter of minutes , thanks a lot !!!
That's a great compliment then! Thanks a lot for sharing that with us - happy learning!
😅😅😅😅😅😅….
I created personal study notes for myself out of this video and it took me nearly an hour. The information density in this video is crazy, in a good way. Extremely helpful, thank you very much!
Glad it was helpful! Thank you for sharing and always feel free to leave us any questions that might come up along the way.
I was left confused when taught this concept in class. This video made a very complex subject straight forward. Thank you!
That's an amazing compliment! Happy to help!
8:22 is what it took you to explain this concept to me, while my instructor has been going over this with us for three days.
Thank you.
Thanks a million! That's an amazing compliment, we truly appreciate that.
This is really a good video for someone like me who would like an introduction on the subject. Short and visual. Thanks a lot!!
Glad you enjoyed it!
Im a hobbyist in IT and this video put the OSI model together in a way I can understand what’s happening when Im using the internet
That's amazing to hear! Happy learning!
Thank God I discovered this channel. This is the best teaching method or pattern so far. What I couldn't understand in two weeks, I got it here clearly. You got a new follower today. Thank you ❤
Glad to hear that! Thank you very much for sharing, and happy learning!
I watched it once loved it.
And today I searched whole TH-cam history in browser to watch again damn the quality.🐯.
Thanks for your support, Deepesh!
Got 10 minutes before my exam, and this video helped me alot. Thanks!!!
Glad it helped! Hope your exam went well!
@@realpars Hey! Too bad they didn't bring it, but still this video was still helpful. Thanks again!
I like the dry and straight forward manner of presentation, good video.
Thank you!
The most simple and educative video I have seen so far.
Thanks a lot
Glad it was helpful! Thank you for sharing, Ali!
My schools explanation for this was absolutely horrible not to mention breezed by like it was a easy 2+2=4 concept. This video is amazin for those who need to visualize the information. I now graduated with my Bachelors not fully understanding this which is not good obviously. But this video made 1000% sense and i now understand it fully with 5 pages of notes. Recomended to anyone who is going through classic college courses, excellerated courses, or already done with school. Subbed and Liked
Thank you very much for sharing that! That's amazing to read.
Excellent! A perfectly simplified depiction. Thank you!
Glad you enjoyed it!
Thank you so much. I wish my teachers were as good, simple, and helpful.
That's an amazing compliment, Anas! Thanks a million.
Were*
This was probably the best video on the OSI model
Thanks a million!
Your channel is one of my best tech channels in youtube.
Keep on fascinating us.
Great to hear, Asaad! Thank you.
This is a great video for understanding the OSI Model! Thank you!
Amazing to hear that! Thanks for sharing.
Thank you very much for informative video. You made it easy for someone like me in his mid 50’s with no prior computer knowledge. Thanks again
That's amazing to hear, Jacques! Glad to hear that and happy learning!
The tip is that http covers all three upper layers - Application, presentation and session and the borders of the layers are quite unformal.
absolute chad who made this video. You man got me through the finals
Great to hear that, Tomas! Great job!
This is the best Video I have seen so far on the explanation of the OSI and I have seen several of them.
That's great to hear! Thank you very much for sharing
Am grateful for this video. I look foward for it's continuation.
I'm glad you like it!
It took 1 hour of this certain subject from my class while this is like 8 minutes and I understood this better.
I swear to God, these college universities are trying to lengthen time on purpose to make use of our tuition fee.
That's amazing to read! Thank you so much for sharing, happy learning!
Awesome video! This was a huge help for understanding the OSI model.
Glad to hear it!
Cengage was okay but this explained the layers way better IMO, Thank you!
Glad it helped! Happy learning
@@realpars thank you!
clear concise explanation. very helpful. thank you!
Great to hear that, David!
using this to supplement my college data/networking class 😅😅 thank you
Hope it helps! Happy learning
Good Video..This video was Presented by my Teacher in class...Thanks for this i have learned how the osi or layers works..PEII Jaro EIT Student
Thank you! Nice to hear that your teacher is using our videos in class! Happy learning
Thanks so much for this, I was able to follow through
Glad it helped! Always feel free to leave us any questions you might have.
I like this channel Very much. Well classified graphical representation make it easy to understand . A novice learner like me can gain some knowledges from your lessons. Thank you 💕💕💕💕.
Thank you very much!
Thanks a lot for this video! It was really clear and helpful!
Glad to hear that!
Best Titorial for OSI Model
Thank you!
igcse textbooks do a really bad job at explaining these. thanks a lot. you saved me
Happy to help!
there is no better ways how things inter connect. thanks a lots ,really really a very good job.
You are very welcome!
Why didn't I find this video earlier... this channel helps me a lot... Thank you :)
Glad to hear that! Happy learning, and always feel free to reach out if you have any other questions.
Best explanation I've seen so far! Thanks
Great to hear that, Adam! Thanks for sharing!
Well done, I really like this channel. Help me a lot
Thank you! :)
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This was very helpful and easy to understand. thank you!!!!
Glad it was helpful!
really excellent... pictorial representation enables me, easy to understand
Great to hear that!
This channel is pure gold. Thanks a lot.
Happy to hear that!
Thank you again RealPars !!! Great Video, i was just learning OSI model and here you post this video at the same time :)
It would be very helpful though if you could please make a video to explain for exemple a Modbus TCP communication (Or whichever protocol you want) and see each layer what it contains !!
Thanks for sharing your positive feedback with us Amrouche! I will pass your topic request through to our creator team. Thanks a lot! Happy learning.
Best osi model explanation. 🔥
Glad you liked it
I watched it twice, great job instructing!
Thanks a lot, Gina!
Simply simplified..........
Thank you.
You're welcome!
Great video. It is on par with a college course.
Glad it was helpful!
Thank You so much for such a wonderful explanation!!!
You are very welcome!
You have brighten my brain!! I always hated this subject but you made a piece of 🎂 😍
That's a great compliment, Safiya! Thank you!
This video gave me a great understanding on ISO
Glad to hear that, Joseph!
Con este video finalmente entendí como funcionan las capas muhas grcias.
Estupendo! Gracias
Holy... this one is just _chefs kiss_
Congratulations you made me to understand more 🙏
Glad to hear that!
This is a great vedio👍👍
Thank You So Much Sir For Your Help 😊😊😀
Most welcome! Happy learning
I watch this video before every CS exam 😂😂
Great! Hope they are helpful, Vikram :)!
who disliked this video? this is great content
Very good! I'm doing a presentation on the OSI model for my class.
Great! Best of luck with your presentation, Joel!
@@realpars Thanks!
This is a very good video, thank you!
You also kinda sound like kahnacademy lol
Thanks Realpars , congrats on 700k subs
Thanks a lot!
Still wish people talked about the unofficial 8th Layer. But thank you for this. Have a job interview coming up and when it comes to the actual job, I just never even think about OSI.
Glad to hear that, Austin! You're very welcome!
Great visual guide to translate something so complex (as we thought). Thank you for this very informative video!
Question: Why do they start at the top from the Application side of things rather than start at the Physical layer and work your way up?
Thanks again
Because we users start interacting from the application layer.
if we receive something it starts at the physical layer and when we send something it starts at the application layer
Because data to send is created at the application layer, sent down to lower layers then at destination the opposite happens. When receiving data it comes from the lower layers up to the application layer from there to user application. Lower layers are abstracted, when you're coding an application you only interact with the application layer.
So maybe they start at 7:
- because is the one you code in when writing software
- because is the one closer to where data is produced or consumed by software
- because it's easier to understand the needed service offered by network protocol to software; sub layers solve not direct software needs, but solve caveauts that apper when trying networking. Lower levels are needed to make the service magically work at the application level, with conundrum arising when trying to network (data loss, packet loss, integrity, retransmission, security, routing, interference) solved magically by "somebody else" at inferior levels, and not a need per se.
When codong at application level, you ignore if lower levels encrypted and decrypted data, modulated and demodulated, packeted and restreamed, resent on timeouts, received in different order and sorted again, passed trough different physical media (radiowave, electrical signals on copper wires, light pulses in fiber optics) many times. At application level, you just pour data in and get data back. Remainder is magically handled for you by lower levels.
That said, when i was tought this during 2002, they started from level 1, tough! Lol! Maybe because i studied electronics not programming, and layer 1 was paramount in that context?
Very well explained
Glad it was helpful! You're very welcome!
Thank You soooo much! Just started Networking & our professor blew threw this as if he was teaching us our ABC'S lol.
Glad to hear that, happy learning!
This video helped me completing my assignment. Thank you sir for such a beautiful teaching methodology.
You're very welcome, Asif! Glad to hear that it was helpful.
Thank you for putting this together!
Our pleasure!
Very nice and clear explanation. Thanks for making this video.
Glad it was helpful! Our pleasure, Kasper!
Guys thanks a lot I've collected a lot of information that
i need in a simple and short way thanks again
That is great to hear, Mohamed! Keep up the good work!
This is good OSI video i have ever seen.. Good
Thanks a million, Amila!
It is very clear and perfect explanation. Thank you
Glad it was helpful!
excellent explanation !! thank you so much, keep doing such great things !
You're very welcome! Happy to hear that our course videos are helpful to you!
in my work I learn part of this for a joke, my boss told me "This is an error 8" I did not understand so they talked me abou OSI I look for it but found out there are just 7, the number 8 is one common problem, the user, as a tech support or programmer you should know this is a big problem sometimes 😂, btw. Great video it helped me for my class.
I wish i have athing better thank four this channel
Even when I price out fiber internet circuits, this still is relevant.
Anyone from 2024
Here 😉
Me!
Here prepping for security+!
Let's go
hey
Thank you for Sharing your knowledge ! ❤
You are very welcome!
@1:20 you mention ethernet and show twisted pair and mention fiber optic separately, when ethernet can be carried over fiber and fibre channel can use twisted pair cables.
Good presentation. Thank you sir
You are most welcome!
one word: - > magnificent
Thank you!
ÇOK FAYDALI . VERY helpful
Amazing, happy to hear that!
This video is gold!!
Thanks a lot!
thank u so much for your explication it's simple and clear
You're very welcome!
It really helps me a lot. Loved it! 😍
Awesome! Thank you!
Another great video. Keep them coming!
Happy to hear that you are finding our videos useful. Happy learning!
hi guy, video is very reality and useful. Thanks
Glad you think so!
This is so amazing. Thank you so much!
You're so welcome!
PERFECT VIDEO! AMAZING! #subscribed ✅🙂❤️
Thank you!
Great video with clear explanation
You are very welcome! Happy learning!
This was done very well. Thank you.
Glad you enjoyed it!
This is great review simple and short, Thank you!
Thanks for the positive feedback!
Great video, thanks!
You're very welcome!
thank you. this is very helpful.
You're welcome!
awesome! your explanation is best in youtube!! thank you so much 🤭
Great to hear! Thanks a lot!
DAMN and the intro was awesome too!!
Thanks a lot!
sir very helpful presentation. great work
Happy to hear that!
Perfect explenation !
Glad it was helpful! Thank you very much!
There is stuff in this video that is either not explained properly or just false.
Encryption can happen at more than just the presentation layer (e.g. IPSec and TLS) and ARP is a data-link layer protocol.
Thew OSI Model is just a model. Actual implementation can use parts of the model or collapse various levels into one. The OSI model, when developed, was an attempt to create a single framework for all protocols. In some respects, it succeeded. In others, not so much. As networks and protocols advanced, functionality was shifted between layers to improve throughput and reliability. The model is still valid from a basic understanding of communication, and that is what was presented in this video.
Not true. I’ve proven it ❤❤❤❤❤
i like the way u explain things.
Happy to hear that, Pushkar! Thanks for sharing.
This was so good