OSI Model: A Practical Perspective - Networking Fundamentals - Lesson 2a

Module 1 of the Networking Fundamentals course will illustrate the core of networking: How data moves through the Internet. The foundation of that is understanding the OSI model.

But this isn't about mere memorization, instead we are going to look at the underlying goals of each layer of the OSI model, and how it contributes to the over all goal of networking: Moving data between hosts.

Before watching this video, watch the first videos in the series:

Lesson 1a - Network Devices: Hosts, IP Addresses, Networks:

Lesson 1b - Network Devices: Repeaters, Hubs, Switches, Routers

This lesson is a free lesson from my new course on Networking Fundamentals. The first module of this course is meant to teach you everything you need to know to understand how packets move through a network. All the lessons for the first module will be released for free here on Youtube:

=== Networking Fundamentals - Module 1 ===
Lesson 1 - Network Devices

Lesson 2 - OSI Model

Lesson 3 - Everything Hosts to do speak on the Internet

Lesson 4 - Everything Switches do to facilitate communication

Lesson 5 - Everything Routers do to facilitate communication

Lesson 6 - Networking Protocols
- ARP, FTP, SMTP, HTTP, SSL, TLS, HTTPS, DNS, DHCP
- Four items MUST be configured for Internet Connectivity

Lesson 7 - How Data moves through the Internet

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If you enjoyed this content, then please tell one other person about this series. At the end of the day, sharing this content is the best way you can thank me and return the favor for this free content. You can get free Internet Points (Karma, Likes, etc) by simply sharing this content across social media communities. =) Thank you.

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🖧 Full Networking Fundamentals series (Module 1 - all FREE):

📇 Details about the Full Networking Fundamentals Course:

📜 Studying for your CCNA?

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#networking #ccna #network #osi #switches #routers

[PracticalNetworking]

👉👉 Enroll now for *discounted early access* to the course and a chance to help shape its content.

_--- Original Comment below: ---_
*Full Course Status: Wait and See.*

Hopefully you've come to realize that I put _a lot_ of effort into the content I create. I'm not a course creator that will simply turn on the screen recording and ramble, then call that teaching. I meticulously plan _every_ module and lesson to _maximize the learning and value_ for the student.

To that end, it takes me a while to put together courses. If I'm going to dedicate the time, resources, and energy to putting this full course together, I need to know that there is enough interest in the full course. I'm rating that by how wide a reach this series achieves.

*If you are interested in seeing the full course developed, then the best way to bring that to fruition is to spread the word about this content* . By itself it already conveys _a lot_ of value. So sharing even just the 7 lessons (13 videos) in this series will surely help whoever you share it with.

Plus ... many online communities would greatly benefit from these videos. Think of all the Internet points you could acquire if you shared this series (karma, likes, follows, etc.) 😉

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[hege]

You, sir, are a networking hero. This requires some serious skills to be able to explain things this clearly as you do. Keep the great videos coming, thanks!

[howaboutsomesoyfood]

I love that you explain this without overcomplicating it with too much technical jargon. I'm studying for a networking exam and this series is really helping.

[AntuNeelesh]

Just like any popular web series, I have been binge watching your videos since yesterday. Thanks to YouTube algorithm that I landed on your channel and immediately subscribed. The way you present the hitherto complex topics in such a lucid and comprehensible manner is mind boggling !! I mean in last 24 hours itself, just by binge watching your videos, my knowledge on networking fundamentals and the OSI model has shot up by multiple notches. It's incredible !! Not a single tutor in my career's last 10 years had explained the concepts in such an eloquent manner (that too free). Please accept my GRAND SALUTE and continue to do the awesome work !! 😇

[willgreat]

Einstein said ‘if you can’t simply explain it, than you don’t fully understand it’ … you are the epitome of this! ..

[kaiser]

best example of why layer 3 ip addresses and layer 2 mac addresses exist that i've seen
i finally understand the concept, thank you

[joeysantos]

My good sir I’m getting into cybersecurity w the google certificate and everyone says having a strong foundation of networking is key and will set you apart. These videos are 10/10 informative and very easy to follow. Your hard work is THOROUGHLY appreciated!

[divixonfire]

no way i surfed the whole internet trying to find an explanation to the osi model until i found this thing you re litteraly a pro thx a lot ❤️

[zhshhfz]

Out of necessity in this world we live in full of computers, I've been trying to wrap my head around computer networking, watching any and all videos I can (whenever time permits), and yours has been the easiest to understand and most organized. Thank you!

[AmitKumar-gtvc]

I remember reading a quote that said "The true mark of an intelligent person is how they explain stuff." and hearing the different systems of our body analogy did that for me. It explained the physicality of networking layers so nicely for me. You are doing great work, sir!

[lemonpocket]

It's the first time I have clearly understood the OSI model.
Excellent explanations and illustrations.

Looking forward to the complete networking course!

[marykateanecito]

This is the best explanation ever. You explain it practically. This is more easier to remember since you explain their function rather than giving a mnemonics.

[electricalstuff]

Possibly the best teacher i've ever seen on any topic. You explain things really, really well. Amazing stuff.

[vgs]

I am preparing for the CCNA. I can finally move forward with understanding. This is the best explanation of the TCP/IP, OSI Model I've come across. Some things now finally make sense. I excited about the rest of your videos. I feel confident now about the course.

[rclogger]

Some of the best lessons on networking I've seen on youtube. Excellent job!

[Neo_X]

This is one of the coolest, simplest and logical explanation of how OSI works. There are tones and tones of videos on YT but unfortunately majority stuff is just "theory and conceptual" level. This video on the other hand explains everything practically and the way it should be. Great work.

[ethemermis]

There is no one explains these like you do. "Underappreciated Channel ! "

[twinkletata]

No words to explain how simply you have explained this. Appreciating your passion and efforts.

[jacobalexander]

I can't thank you enough. I am taking a Google IT Support Certification Course; unfortunately, the material they provide is almost useless compared to how you explain these concepts. Thank you again for all your hard work.

[NMranchhand]

What does OSI mean?
You’re a GREAT instructor! Truly. If there’s one thing you could improve upon is making sure you ALWAYS introduce an acronym only after you have spoken it’s full form, and the gradually shift in your speech to the use of the acronym alone, thus teaching the acronym as you’re teaching your subject.