OSI Model Deep Dive

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  • čas přidán 13. 08. 2020
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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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Komentáře • 320

  • @tylercoombs1
    @tylercoombs1 Před 3 lety +251

    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
      @kj7767 Před rokem +9

      Actually he spends 14 min and 45 seconds.

    • @Junglist619000
      @Junglist619000 Před rokem

      Except he called a plug a jack.

    • @tylercoombs1
      @tylercoombs1 Před rokem +2

      @@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
      @lukakavteli9441 Před rokem +3

      @@Junglist619000 it is called jack 45...

    • @cameron4255
      @cameron4255 Před rokem +2

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

  • @nicholasgraff894
    @nicholasgraff894 Před 3 lety +171

    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
      @saranexie7809 Před 10 měsíci

      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
      @a19523 Před 2 měsíci

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

    • @a19523
      @a19523 Před 2 měsíci

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

    • @hm5758
      @hm5758 Před 12 dny

      my course is fully online in modules so the teacher just uploads a lesson plan cisco sends the school minus the answers and links videos that are minutes of confusing short explanations that overlap eachother

  • @bakinsonoliver3426
    @bakinsonoliver3426 Před 4 měsíci +10

    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
    @oamaer Před 7 měsíci +4

    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
    @silverfoxgaming6661 Před rokem +8

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

  • @lato137
    @lato137 Před 2 lety +14

    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!!

  • @emirkurt1548
    @emirkurt1548 Před 6 měsíci +2

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

  • @tonyhill5966
    @tonyhill5966 Před 3 lety +38

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

  • @seepesharma1426
    @seepesharma1426 Před 10 měsíci +4

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

  • @TheodorSirmanoff
    @TheodorSirmanoff Před 3 lety +56

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

  • @ravitejanakka5486
    @ravitejanakka5486 Před 2 lety +1

    Best OSI explanation in the internet.

  • @charlyekerum2714
    @charlyekerum2714 Před 2 lety +3

    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.

  • @kingtewodrost3627
    @kingtewodrost3627 Před 2 lety +6

    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
    @scottmcdonald2046 Před 2 lety +1

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

  • @Danielcantillo
    @Danielcantillo Před 3 lety

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

  • @jpadma9
    @jpadma9 Před rokem +1

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

  • @heitortremor
    @heitortremor Před 2 lety +3

    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!

  • @jpkral
    @jpkral Před 4 měsíci +1

    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!

  • @MrPelastus
    @MrPelastus Před 6 měsíci

    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.

  • @dustybeta4055
    @dustybeta4055 Před rokem +1

    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 CZcams!

  • @valjaza
    @valjaza Před 3 lety +2

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

  • @talostheking8529
    @talostheking8529 Před 2 lety +2

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

  • @BoostRoo
    @BoostRoo Před 3 lety

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

  • @icysaracen3054
    @icysaracen3054 Před 2 lety

    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.

  • @ausbos479
    @ausbos479 Před rokem +1

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

  • @santonopoulou
    @santonopoulou Před rokem

    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.

  • @precocioussibanda3413
    @precocioussibanda3413 Před 3 lety +9

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

  • @adeniyifatuyi5250
    @adeniyifatuyi5250 Před 3 lety +7

    You demistified my fear of avoiding this topic every time.

  • @samwelipmbise3877
    @samwelipmbise3877 Před 2 lety +1

    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.

  • @Daniel-jb5dw
    @Daniel-jb5dw Před 2 lety

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

  • @YenieD13
    @YenieD13 Před rokem +1

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

  • @ali_HA24
    @ali_HA24 Před 3 lety +4

    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
      @kwallaceccie  Před 3 lety +6

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

  • @Linaiz
    @Linaiz Před 3 lety +6

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

  • @macktheripper7454
    @macktheripper7454 Před rokem

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

  • @arkantaha93
    @arkantaha93 Před rokem

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

  • @andyhoangvu8558
    @andyhoangvu8558 Před 2 lety +1

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

  • @nishkarve
    @nishkarve Před 3 lety

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

  • @ankanroy2
    @ankanroy2 Před rokem +1

    The bestest explanation I ever heard of OSI model

  • @swa3885
    @swa3885 Před 3 lety

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

  • @PicyPoe
    @PicyPoe Před 2 lety

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

  • @arminriverol4286
    @arminriverol4286 Před 3 lety

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

  • @gregrosenheck8852
    @gregrosenheck8852 Před 4 měsíci +1

    thank you, you were great I now have an understanding of this. My teacher stinks compaired to you God bless

  • @user-eb6ro8wj2n
    @user-eb6ro8wj2n Před 28 dny

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

  • @cherishthemagic
    @cherishthemagic Před 2 lety +14

    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
      @mcdanielsmarasiro1818 Před rokem

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

  • @dianaabiemo5177
    @dianaabiemo5177 Před 3 lety +1

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

  • @773Bryant2
    @773Bryant2 Před 3 měsíci

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

  • @ilFarhanAhmed
    @ilFarhanAhmed Před rokem

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

  • @tatethompson3487
    @tatethompson3487 Před rokem

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

  • @staceysing4263
    @staceysing4263 Před rokem

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

  • @govindrahunjan
    @govindrahunjan Před 2 lety +2

    great introduction Kevin. but for complete beginners like me, it'd be more perceptible if you explain: why these layers were born, why they're called layers in the first place, why this model was chosen, besides talking what these 'layers' do. that'd give a holistic picture of how the entire concept originated and why this setup was chosen. it'd make your video a lot more substantial and probably the only one, as I haven't found even one that talks about it!
    kudos to you for the great work! blessings

  • @brunorodriguesdelima3448

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

  • @bobdoe4535
    @bobdoe4535 Před rokem

    Love this clear concise explanation of the OSI model.

  • @naumanshafique1745
    @naumanshafique1745 Před 3 lety +3

    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

  • @AshfaqAhmed-xj2lz
    @AshfaqAhmed-xj2lz Před 2 lety

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

  • @Black_Swan68761
    @Black_Swan68761 Před 3 lety +1

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

  • @Sickbreh257
    @Sickbreh257 Před 3 lety

    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!

  • @androidery1999
    @androidery1999 Před 3 lety

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

  • @shoooozzzz
    @shoooozzzz Před rokem

    Best OSI overview I've found on CZcams

  • @gastonshefa4859
    @gastonshefa4859 Před 10 měsíci +1

    Best Breakdown ever on this topic. Thank you

  • @susieogle9108
    @susieogle9108 Před 3 měsíci

    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.

  • @andysmason
    @andysmason Před 2 lety

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

  • @hackersthathelplearning4819

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

  • @apexberserker3057
    @apexberserker3057 Před rokem

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

  • @samsamiesam3998
    @samsamiesam3998 Před 7 měsíci

    Best OSI model explaination i ever heard
    God bless you

  • @amirkarami4053
    @amirkarami4053 Před rokem

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

  • @josuba
    @josuba Před 3 lety +3

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

  • @agbaiobasi7390
    @agbaiobasi7390 Před 11 měsíci

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

  • @x-killer-x8058
    @x-killer-x8058 Před rokem

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

  • @tahersadeghi6773
    @tahersadeghi6773 Před rokem

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

  • @Thedude897
    @Thedude897 Před rokem +1

    I got the TCP/IP guide by Charles Kozierok whitch I'm actually using as a reference guide for what to watch on CZcams. The book is from 2005 but it's an amazing tool to learn networking with youtube videos like these. Next my goal is to learn nmap and then wireshark. Thanks for this video I will definitely rewatch.

  • @AG-un7dz
    @AG-un7dz Před 8 měsíci

    The best OSI model explanation on the web!

  • @abdulhakeem9458
    @abdulhakeem9458 Před rokem

    First time I watch like this type of teacher in technical field

  • @buddyboy0754
    @buddyboy0754 Před 4 měsíci

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

  • @sameeradhikari1777
    @sameeradhikari1777 Před 3 lety

    Very good, easily understandable description of OSI model.

  • @JXO2023
    @JXO2023 Před 3 lety

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

  • @jeremybly
    @jeremybly Před rokem +2

    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.

  • @charlyekerum2714
    @charlyekerum2714 Před 2 lety

    Very wonderful explanation and illustration.

  • @danpind8879
    @danpind8879 Před rokem

    Great demonstrations and presentation. Thank you.

  • @natrub78
    @natrub78 Před 3 lety +3

    Absolutely Brilliant explanation, thank you so much!

  • @thomasrockson5824
    @thomasrockson5824 Před 3 lety +3

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

  • @yadugna
    @yadugna Před rokem

    Great presentation- what a wonderful teacher !!!

  • @naginouman
    @naginouman Před 2 lety

    This is a great lecture saved me hours of study time.

  • @JohnSmith-cu2bj
    @JohnSmith-cu2bj Před rokem

    Very much thanks Kevin! Your trainings are superb.

  • @duroka787delapeli
    @duroka787delapeli Před rokem

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

  • @ahmedabdulkadir8921
    @ahmedabdulkadir8921 Před 3 lety

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

  • @sebastianrengelclaros3558
    @sebastianrengelclaros3558 Před měsícem

    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

  • @dawitmengistu6912
    @dawitmengistu6912 Před rokem

    An amazing presentation. Thank you Kevin.

  • @pureremix9074
    @pureremix9074 Před 2 lety

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

  • @zaccurharris6111
    @zaccurharris6111 Před rokem

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

  • @gionnijohnson4826
    @gionnijohnson4826 Před 2 lety

    I will be studying this for my upcoming exam. Thank you sir

  • @sadjednemli3977
    @sadjednemli3977 Před 10 měsíci

    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 👍😊

  • @D809G
    @D809G Před 2 lety

    Best explanation vid on YT for sure

  • @TINHLE-xj4kk
    @TINHLE-xj4kk Před rokem

    Best well explained on youtube. Thank You!

  • @chrismartinez1370
    @chrismartinez1370 Před 2 lety +2

    Astounding explanation! Thank you very much :)

  • @onelmedina1349
    @onelmedina1349 Před 3 lety

    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. 👍

  • @rm3450
    @rm3450 Před 2 měsíci

    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.

  • @halldk
    @halldk Před 9 měsíci

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

  • @hiirusha
    @hiirusha Před rokem

    thank you Mr. Kevin, this video educated me a lot

  • @DouglasPendletonintherealms

    I have watched this twice. I love it.

  • @stevedavis1962
    @stevedavis1962 Před 3 lety

    Nicely put especially the misunderstood Application Layer