Packet Traveling - How Packets Move Through a Network

This video will illustrate everything that happens to describe how packets travel through a network. Specifically, we will look at every step to get a packet from a host, through a switch, then a router, then another switch, and finally to another host.

0:00 Intro
0:45 Topology Introduction
1:43 ARP Tables, MAC Address Tables, Routing Tables
3:38 Packet from Host A to Host D
11:18 Response from Host D to Host A
14:11 Outro

Here are the rest of the articles in the Series:

OSI Model:
Key Players:
Host to Host communication:
Host to Host communication through a Switch:
Host to Host communication through a Router:
Host to Switch to Router to Switch to Host:

You can read more articles on Network Engineering and Network Security at Practical Networking:

[PracticalNetworking]

That is the new final video of a 13 part video series discussing Networking Fundamentals. You can see the full series here:
👇
Hello,
This video is the first video I ever published to Youtube. Initially, I didn't even mean to create a consistent Youtube presence, this was simply a topic that I felt was better taught visually. All that said, I've come a long way with video and audio recording quality. I know there are a bunch of issues with the audio in this video, but please understand I was very new at recording videos when I published this in 2016. All my newer content is much, much better quality =)

Hope you got a lot out of this, and if you did, I would highly recommend the series I linked above, as it's a much more thorough and expanded version of how Networking works. Cheers!
-Ed
Practical Networking .net

[rafaelm.]

8 years later and this video is still extremely helpful. Thanks!

[studentfromutm]

amazing explanation, because u showed every single address at every single point in the journey, which made it really easy to understand, and the animation made it even more understandable, thank you very much sir

[sumantkanala]

Best explanation I found regarding packet travel in the lower layers. Period!

[R-dub]

I just finished a Network+ study session, and said to myself “man it would be so helpful to visualize exactly what happens when a packet traverses multiple networks”. This was the FIRST video I clicked on and wow I’m glad I did. This was EXTREMELY helpful dude! Thank you!

[naveedhusnain]

Only one sentence, I have for you and that is "You are the best teacher in networking". You explained everything in such a way that any dummy can understand networking basic principles. Thank you very much.

[PSPCDJ]

Thank you, this is probably the only video that actually talks in detail about how all this works, with a practical example.

[curacreates]

Very straightforward and helpful overview. Would love to see this same style of presentation to explain SDN flow table routing, and also difference between traditional network routing and SDN routing.

[VideoJunkee]

This video still holds up as one of the best networking tutorials around

[terohann]

This was great! As a suggestion, it would be great to see this tutorial extended to cover routing protocols, eventually explaining a global packet journey from an AS to an another AS.

[ManjeshTNReddy]

No matter how old the video is, the was you explained concept won't loose it's flavour. Awesome. Thanks a lot.

[sriharinagaram]

This is the perfect step by step presentation. This video clarifies all basic doubts. thanks for making this video.

[manojpradhan]

6 Years of learning the same thing, and everything finally clicked, thanks to your video .

You have no idea how helpful this way of explaination in .

[KiranKumar-wzel]

I'm from India, I should touch your feet to get blessed with knowledge, virtually I did.(great video sir) LOVE from INDIA

[michaelmounteney]

This is by far the best video I've seen on the subject. The narrative is clearly articulated, the diagrams are well-drawn without sloppy and distracting errors, and the detail is sufficient, without verbosity.

[Facefur]

I've watched the entire series - great stuff, not just for review, but for a bit more insight. Walking through all the protocols makes everything clear.

[Velo]

Truly mind blowing how these network and computer engineers designed our modern day networks. Even more incredible is how they designed networks to communicate including all those network appliances.

[JulietNovember]

After numerous websites and videos... this is THE clearest explanation of how a packet moves. Thank you SO much!

[tanvia]

Must have taken so much patience to make this video!

[raedsalih]

Every video I watch, I can say that I learned new things. It is very well organized and direct to the point. Thanks