How Data moves through the Internet - Networking Fundamentals

This is the summary lesson to the Networking Fundamentals series. In this lesson we illustrate everything Switches and Routers do when forwarding packets between two hosts. We show you each device's ARP, Routing, or MAC address tables, and show you how each are populated and/or used to forward packets.

This is the ultimate video showing you a practical illustration of how packets move through a network.

This question seeks to discover if you understand the core of networking: How packets move through a network.

00:00 - Intro
01:03 - Routing Table, ARP Table, MAC Address Table
02:55 - Populating the Routing Tables
04:51 - Packet Details from Host A to Host B
05:48 - Packet #1 - Host A to Host B
14:23 - Response - Host B to Host A
17:28 - Packet #2 - Host A to Host C
21:34 - Response - Host C to Host A
23:41 - Mission Successful !!!
23:59 - Interview Question for Network Engineering Roles
24:24 - Tell me what happens when browsing to a website
25:09 - Summary

=== 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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[PracticalNetworking]

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*Full Course Status: Module 2 is 80% complete*

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.

After Module 2, I have about 8 more modules planned going deeper into Networking. I plan to make this course _the_ premier Networking course that gives _everyone, _ in _any_ tech discipline, the Networking knowledge they need to succeed.

*Let's face it, everything is connected to the Internet these days, and understanding how that works will set you apart professionally.*


*If you want to support the full course's development, then the best way to do that 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, all free) in this series will 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.) 😉

Use this link to share the full series:

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Also, if you share it on Twitter or LinkedIn, please tag me =):

[scottspa]

There is NO ONE that can break down, and clarify, these fundamentals (and even the more complex stuff, like TLS) like Ed does. He is an absolute guru at communicating this content.

[brucewill]

Hi Ed
I am an electrical engineer working in VoIP. I spent this weekend going through this Networking Fundamentals module. It has filled in so many holes in my knowledge! I feel much more confident about my work. Thank you for making it so understandable and easy to follow. Really amazing.

[fareselamine]

Can't stress enough how valuable these videos are. Great work Ed, thank you for everything.

[ViHa-vy]

I don`t know if it`s possible to explain these things more cleare than you did. No water. Only core idea. Step by step. Thank you for that!

[sanghavi]

I am a software developer and was not much interested in networking.

As part of random search I have gone through network protocol video. After watching that video, I have decided to go through entire series which I just completed.

In my opinion, every single minute of the entire series has most valuable content.

I think it would be very hard to get such content even with paid course.

Thank you so much for such a precious content at free of cost.

[surfingamerica]

I've studying networking for the last 7 months, I was able to recognized/understand %85 of the steps on the data flow, the other %15 left I wasn't completely confident was so greatly explained that I hope I'll never forget, and the final analogy was pure gold, it all make sense, 20 minutes and done. Thank you.

[skrnytbe]

No words to express my thanks to your effort. Even though I have read this concept many times through pages of networking books, this video gives altogether different perspective of learning!!. Extraordinary!!

[michaelkoudela]

Finally a video explaining how the whole network works without only explaining the concepts in isolation, thanks a lot! It is simply awesome!

[atulkumar]

I never made a comment on a youtube video in 10 years but dear from the bottom of my heart..God bless your soul don't know what to say as no words can describe the efforts you made...🥰🥰..

[nataliarutecka]

Thank you so much for the whole introduction to networking. I find it extremely well-thought and it helped me land a job as a site reliability engineer ❤

[Insomniac_]

Dude, so many people ramble on about crap and digress, you are just STRAIGHT TO THE POINT. So fantastic, Well done!

[joranpeeters]

This class is just perfect! Everything is explained very clearly and I think few people can explain this in such a good way. Thanks for this course, I understand everything much better now!

[bbqconstruct]

Each and every video on this playlist deserves the algo pampering. After following along on this journey, the information was becoming redundant by the time it was called out. The self awareness of the quality of information being presented is more evidence of his mastery of teaching networking fundamentals.

[bhavaniparuchuri]

Thanks Ed Harmoush, Can't Thank you enough for explaining this basic concept of networking so easily ..GRATITUDE :)

[atobatele]

This is the best explanation I have seen in my whole career regarding OSI and how data moves in a network. Thank you so much for taking the time to break this down.
This is hall of fame level of explaining a concept that has been ephemeral for so many years

[barduse]

you are the real king in networking boss. every single word makes sense. U deserve a billion likes for this playlist.

[tangoolo]

These are GEMs of lectures on Networking. All ~700pages networking books are like garbage infront of the videos on this channel.

Thanks a lot.

[JonEvett]

This is the clearest and most ‘human’ way I have ever seen this explained - it is simply outstanding and I recommend this series unreservedly!!!

[learningchannel]

Man, there is no other series, not even the ones that are made with expensive software and hardware by so-called professors, come close to this series. I would like to thank you for your work and if I ever make it anywhere in this field, I will compensate you for this. But for now I send you positive energy and good karma. I also like, comment on, share every singlw one of your videos. You deserve it. Thank you!!