OSI Model Deep Dive

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In this video, you'll take a deep dive into the 7-layer OSI Model, considering lots of examples of devices, protocols, or services residing at each layer.
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Kevin Wallace, CCIEx2 #7945 Emeritus (Collaboration and R&S)
Homepage: kwtrain.com
Twitter: / kwallaceccie
Facebook: / kwallaceccie
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LinkedIn: / kwallaceccie
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If you enjoyed this video, here is the video title and also the link for you to share:
OSI Model Deep Dive
• OSI Model Deep Dive
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[@tylercoombs1]

You know this man is an engineer when he spends 15 min at the Physical layer PS Thanks so much! It's actually pretty difficult to find a comprehensive video done within 30 min

[@kj7767]

Actually he spends 14 min and 45 seconds.

[@Junglist619000]

Except he called a plug a jack.

[@tylercoombs1]

@@Junglist619000 Considering that one refers to the male aspect versus the female aspect of the two components i would hardly consider this enough to negate his 30 years of experience. Rather trivial error anyone could make producing a video for the internet lol

[@lukakavteli9441]

@@Junglist619000 it is called jack 45...

[@cameron4255]

Lol....😂Yeah, I know that's right, but at least he knows what he is talking about.

[@nicholasgraff894]

thank god, youre way better than my teacher he just sits at the top of the class in silence and assigns reading assignments and makes you feel stupid for asking him a question, you explain IN PLAIN ENGLISH WITH VISUAL EXAMPLES youre a good man for this work, paving the way for us newbies

[@saranexie7809]

My teacher sucks as well. I have to send this video to everyone in my class because the way my teacher explained it was total crap.

[@a19523]

this comment alone made me subscribe. I'm super excited for the vid!

[@a19523]

also I hope the rest of your education went better than with that one professor!!

[@bakinsonoliver3426]

learning this in 2024 and the information passed is still very valid across both physical and cloud servers. you are the goat for real 💯

[@oamaer]

I spent nearly 20 years listening to Kevin Wallace from Somalia, and I learned so much from this engineer and teacher. Thank you, sir!

[@silverfoxgaming6661]

I like to use the Accronym "Please do not teach students pointless Accronyms"

[@lato137]

It amazes me that your view count isn’t higher. This is by far the best OSI model presentation I’ve seen. Thank you so much!!

[@user-eb6ro8wj2n]

My life wouldve been lot different if i had teachers like you ! The best 10/10

[@seepesharma1426]

Thank God,I found you! Thank you for the most beautiful presentation I had for osi. Really appreciate it. 🎉

[@PicyPoe]

Such a short, but very concise and begginner friendly video! Thanks, this helped a ton!

[@emirkurt1548]

I don't know to what we owe the existence of this video, but no teacher could explain it so clearly.

[@nishkarve]

Wonderfully done. Comprehensive and clearly explained. Well done Kevin!

[@Linaiz]

I love your energy, it helps so much in staying focused!

[@tatethompson3487]

Very simplified. Much better understanding. Thank you!!! Love the acrostics!

[@ausbos479]

This is probably one of the best OSI video out there. Thank you!

[@kingtewodrost3627]

I appreciate your valuable time. I love your detailed elaborations of the OSI Model. It really goes a long way in my IT career. Comprehensive, clear, concise, detailed and relevant. Great tutorial mr. Kevin 👍👍

[@scottmcdonald2046]

Great video, breaks things down to get you to better understand the OSI model. By far one of the best instructors on KZbin for networking.

[@charlyekerum2714]

Kevin you are so wonderful. Honestly you have re-enkindled light in me by giving a clear and better explanation and understanding through you down to top approach of the OSI.

[@jpadma9]

Its so refreshing to find such a good teacher, thank you so much for these videos, I'm so glad I discovered this material.

[@Danielcantillo]

Is the first video I see in KZbin which clearly captures and lays out concise explanations for the OSI Model. This was very helpful for a beginner such as myself.

[@hackersthathelplearning4819]

Thank you for your dedication Kevin! This explanation was amazing.

[@macktheripper7454]

This is the best video I have ever seen describing the Osi model. Thank you so much 🙏

[@precocioussibanda3413]

Well explained. I was especially misguided about the application layer before. Thank you for explaining that one

[@dianaabiemo5177]

Thank you Kevin. I really enjoyed your presentation. Looking forward to more of your presentations.

[@YenieD13]

As a visual learner this has been instrumental! Thank you for your detailed explanation of each layer

[@arminriverol4286]

Kevin thank you for your excellent and asome explanation on the seven layers of the OSI Model.

[@swa3885]

One of the best explanations of OSI models. Thank you!

[@TheodorSirmanoff]

the best presentation of the OSI layer I heard. Thanks, Kevin!

[@andysmason]

Just watching this video. I love the lego usage and the real explanations of things. Great Job! keep up the good work!!

[@bobdoe4535]

Love this clear concise explanation of the OSI model.

[@staceysing4263]

Kevin is the real thing!! Great and simple explanation -- thank you for no making the OSI model so intimidating.

[@heitortremor]

I really appreciate the explanation starting with the physical layer and moving up. It makes much more sense that way. It's also excellent how much you focus on the first few layers! Those are the ones I need to learn most intimately for my position. You have a very good speaking voice!

[@santonopoulou]

I'm preparing to prepare to sit for the OSCP and I wanted to dig into networking to get some idea of network based attack vectors and this video has filled in some gaps I had for SURE in my networking knowledge. Thank you for this! Learned even more than I expected and will for sure be looking into more of your videos as I prepare to write this exam.

[@MrPelastus]

One of the best OSI layer explanations! I found it very easy to understand. I like how you used objects and drawings to explain the concepts, making understanding it way easier than just me reading a book and imagining the whole thing in my little head. This helped refresh my memory as I prepare for an important certification exam.

[@androidery1999]

Excellent. Perfect depth and breadth I was looking for on this topic

[@Daniel-jb5dw]

Just 5 minutes in and I can already see the difference. Great teaching!!

[@valjaza]

You are simply a GREAT Trainer. thank you KEVIN for your contribution to the Networking world.

[@Black_Swan68761]

Very well explained!! Well Done, Kevin, you are the BEST!!!

[@ilFarhanAhmed]

This is the best explanation of the OSI Model ever. Thanks Kevin.

[@brunorodriguesdelima3448]

The best OSI model explanation ever. Thanks for the content Kevin.

[@773Bryant2]

You have a great way teaching to beginners. Thank God for you 🙏🏾

[@dustybeta4055]

Kevin, your training style is great. I just started your Networking Fundamentals course on LinkedIn and wanted more depth on the OSI model, and of course your video comes up. Keep doing what you are doing, this material is invaluable to have on KZbin!

[@kjarvisk]

Great video. Just what was looking for for a refresher before an interview.

[@AshfaqAhmed-xj2lz]

Thank you Kevin, one of the best explanation about OSI model. This is really helpful. Thank you!

[@BoostRoo]

Best OSI Model explanation I've come across. You've got a knack for teaching.

[@arkantaha93]

Only 30 mins! This is the best explanation I ever watched. Thank you very much.

[@naumanshafique1745]

wow, surely amazed to see such a detailed elaboration, i wonder how did you get such level of understanding of OSI, thank you very much

[@icysaracen3054]

Started my Cert IV in Information Technology (Networking) in Australia. Your video pretty much gave me an excellent overview of how Network operates. I feel confident doing my studies now. Thank you Kevin.

[@jpkral]

I had some basic knowledge of the OSI or TCP/IP model, although there were obvious gaps in that knowledge that was filled with thanks to this video! I love how short it is but covers so much, especially a 15 minute introduction to the physical layer 😂I thought the physical layer would receive the least amount of attention. Thank you!

[@ravitejanakka5486]

Best OSI explanation in the internet.

[@Sickbreh257]

Fantastic 30 Minute Crash Course on the OSI Model! I'm a complete newbie to Data Networks, this will definitely be useful for my upcoming course on Telecommunications! Thank you so much! Please Do Not Throw Sausage Pizza Away! Love it!

[@gastonshefa4859]

Best Breakdown ever on this topic. Thank you

[@ankanroy2]

The bestest explanation I ever heard of OSI model

[@talostheking8529]

I'm taking a cyber security course and my college has actually linked your videos for us to watch. It's been very informative.

[@sameeradhikari1777]

Very good, easily understandable description of OSI model.

[@tahersadeghi6773]

As always. Great video. Thorough explanation. Thank you.

[@josuba]

Greetings from Brazil! Very well explained, thank you so much.

[@shoooozzzz]

Best OSI overview I've found on KZbin

[@apexberserker3057]

the best video on the OSI model on the internet. should be a required video for any networking course.

[@tonyhill5966]

OMG, this was absolutely the best OSI explanation I have ever witnessed!!! Thank you, thank you, thank you.

[@samwelipmbise3877]

Kevin you are so wonderful. Honestly you have kindliness light in me by giving a clear and better explanation and understanding through you down to top approach of the OSI.

[@samwelipmbise3877]

Thanks

[@amirkarami4053]

I have an exam in few days and you saved me lots of time.Thanks.

[@sadjednemli3977]

Thank you Sir so much. Good and clear vid to understand the OSI model. I've learned that before but I got some extra information about those layers. Thank you again 👍😊

[@AG-un7dz]

The best OSI model explanation on the web!

[@halldk]

Very informative, great review for an upcoming test. Thanks!

[@JohnSmith-cu2bj]

Very much thanks Kevin! Your trainings are superb.

[@buddyboy0754]

Great Video! Really helped break this down for the CISSP exam.

[@JXO2023]

Fabulous Kevin ... your explanation is crystal!!!! Thanks a lot indeed!!!!

[@ahmedabdulkadir8921]

Your explanation of the OSI Model I was impressed by the language and the example you provided keep going Thank you Eng

[@andyhoangvu8558]

Honestly, this man can explain the OSI model better in 30 mins than my professor can in 3 hours.

[@agbaiobasi7390]

Thank you sir, your expertise on this is top-notch.

[@x-killer-x8058]

WHERE HAVE YOU BEEN OF entire MY DAY THANK YOU VERY MUCH ❤❤❤❤❤ , you just saved my a** from failing network class.

[@dawitmengistu6912]

An amazing presentation. Thank you Kevin.

[@jeremybly]

Great video. I know nothing about IT but got convinced to get my network + certification. I figured it was no big deal. I'd figure it out until I got into my comptia coursework. I quickly learned that I need to learn so much and I also need to learn the fundamentals before network plus because this stuff has so many abriviations and terms I don't know/understood and even when I learn the definition I don't hate any knowledge of how or why to apply it. But this video does help me understand at least this one model.

[@rm3450]

Thanks for the video! I am studying for comptia network+ certification and this really goes into more detail. Also I was in a job interview with a company and they asked me what the OSI model was and how it related to IT work so people still reference this all the time.

[@duroka787delapeli]

U are killing it... first two minutes already knew was a good explanation 👌

[@natrub78]

Absolutely Brilliant explanation, thank you so much!

[@samsamiesam3998]

Best OSI model explaination i ever heard God bless you

[@susieogle9108]

I have watched many OSI model explanations, but this was one of the easiest to understand. The explanation of thr Application layer stands out as something I am able to relate to better. That is just one example of many.

[@redhawkrobin]

Hi Kevin! I'm Kevin too. Tbh I find this very interesting and not boring at all. Using this vid to memorise it for my network+. Thank you !! keep up the work !

[@franciscoalvarez5215]

This was an amazing educational video. Very well done and very informative.

[@zaccurharris6111]

Thank you for this explanation I nearly thought it would be impossible for me to understand

[@thomasrockson5824]

well articled, l have gained the best understanding of OSI model, thank you Kevin

[@yadugna]

Great presentation- what a wonderful teacher !!!

[@onelmedina1349]

I agree with everyone, this is the best explanation bout OSI layer ever. I'm glad I found you. Now I can say , I am ready for the test. 👍

[@chrismartinez1370]

Astounding explanation! Thank you very much :)

[@pureremix9074]

this is one of the best videos to understand osi layer you da best keep up

[@danpind8879]

Great demonstrations and presentation. Thank you.

[@charlyekerum2714]

Very wonderful explanation and illustration.

[@ali_HA24]

Best demystification of OSI layers. Been always gr8 fan of yours. I started off my IT career in 2015 and today I am at the CCNP level, my both CCNA & CCNP study training was KW only. Today, I am enjoying a highly paid job. Your way of teaching just syncs extremely well.

[@kwallaceccie]

That’s so awesome to hear! Congratulations on your success, and I’m happy my training played a role. All the best!

[@repentprayfast]

Thank you very much for putting this together, it was really helpful!

[@roycel9219]

Really well explained, thank you, Kevin

[@kashifafridi9532]

really appreciate the efforts made ! wonderful presentation. thank you.

[@stevedavis1962]

Nicely put especially the misunderstood Application Layer

[@thetrainoflife8327]

This is fabulous 🙌 thank you sir for this wonderful explanation

[@cherishthemagic]

Love this! One of the best explanations of the OSI model. I am preparing to take a test next week for my network and security foundations class and I've heard the majority of the test covers OSI and the course material just wasn't clicking but your video has helped me to better understand the OSI model. You rock, Kevin!

[@mcdanielsmarasiro1818]

Hi Cherish, I am currently doing S+ personally is it possible that I can connect with you. Thank you.

[@kifletesfa5426]

I love your content and clear explanations. Thanks a lot.

[@sineworkgirma100]

simple and well explained. thank you

[@rival9785]

I'm trying to have energy levels like this man. Great video, amazing presentation.

[@sebastianrengelclaros3558]

Such an excellent video, I have an upcoming test and I didn't quite get the subject content given by the professor. Thanks a lot! This helped me so much

[@akbntc]

Great video. Thanks, Kevin!