Subnets vs VLANs 

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As a network engineer I can say: yep, that's how it works at a high level. Most blogs/courses/videos/etc. go really far into how subnets and VLANs work and often talk about packet tagging, subnet masks, etc., and forget to just give a high level overview of what the stuff does. These videos are short, concise, and accurate. I recommend them a lot to people looking to learn this stuff for the first time as it helps to know what the technology does before you get lost in the weeds on making it work. ;)

Sir, you are a blessing to everyone who want to upgrade or refresh their IT skills. You break complex topics in such a simple explanation and graphical representation. Thank you 😌

Believe it or not but I was wondering what is the actual difference between Subnets vs VLANs and your video comes in exactly right moment!

As a 30 year networking veteran I both love and cringe the simplicity of your videos. They are accurate but necessarily incomplete in the information they portray (which you state directly at the end of this particular video). I am extremely passionate about this field and hope that your videos inspire people to go deeper down the rabbit hole and learn how PCs, networks, firewalls, etc. work rather than treating them like a "magic black box" . I admire your talent both in simplifying topics that would otherwise be very daunting to beginners as well as doing fantastic easy to follow animations. /salute

Being honest, this is the only video which I was looking for from last 3-4 years. You described everything in easy way. Thanks and expecting a video on Basic Network Concepts.

I looked and looked for videos on RU-vid and never have I run into a channel that explains IT this well while keeping me entertained. I keep rewatching the clips and I'm not even studying for the CompTIA exams lol.. very well broken down explanations!

I've done a couple courses studying for Network+ and watching your videos in 1.5 speed is the BEST refresher of knowledge. Very thankful you made this content for us!

I can’t find words to thank you enough, sir. We all really appreciated and acknowledged your great effort to make learning these important things easier.

I'm literally in the middle of studying subnet masking for my CCNA 200-301 right now. This little extra clarification of the two could not have been at a better time. Thank you so much!

I definitely recommend this channel to everyone I know who wants to learn networking. It's easy to understand, visually we can see each topic. Thank you so much sir.

Your animations make technical concepts much easier to understand.

As you said, you can only learn so much from one video....this just scratched the surface but touched on the major points. Another fide video Mr. PowerCert!!!

Your videos are absolutely incredible. I didn’t find anyone explained it along with amazing graphics like you did. Thank you for such a great experience. Make more videos please

This is what I actually searching for the past fewdays. You made it at the right time. And provided a dowm to earth explanation. Thank you sir.

I truly appreciate the time and commitment you've put into creating these videos! They've been incredibly valuable in propelling my career forward in the field of I.T. Much appreciated!

You'd still normally have different subnets for each VLAN. All a VLAN does is logically separate a network, instead of physically. This also gives flexibility in that switch ports can be assigned to specific VLANs. This means someone from sales and someone from IT could be connected to the same switch, but be on different VLANs and subnets. Another use for VLANs is with multiple SSIDs on an access point. For example, here I have a guest WiFi on the same AP as the main network and use a VLAN to carry the guest users over the exact same wire as the main network users. The router then provides a different subnet for the guests and routes them to the Internet. BTW, I have a Cisco managed switch here.

Hey. I just want to thank you for all these nitty gritty information you have given us... You are doing a great job. Thank you.

I'm a field tech that runs troubles and these videos are a blessing. If I run across something odd I go to this channel to understand what just happened. Only complaint....there aren't MORE videos! ha

This guy is a savior. Thank you sir for every thing. And if you do a video about subnetting again i would appriciate it.

Amazing Videos, you make learning much more easy and effective. I can tell your videos take a lot of time to make and the level of detailing you put in video is mind-blowing. Did anyone notice when the the cables connected to switch & after he said configure the ports. The lights started blinking meaning data is moving. Love it!

Once again, you have taught me something that I was cloudy on. I pray for your continued success.

Thank you for making this kind of video. I find it much easier to understand especially when I have no networking background. Your videos are helping me a lot to prepare for the network+ certification.

This is amazing! Thank you for putting so much effort and work into these QUALITY videos. Please keep making more you make learning technology not only easier but fun!

Thanks. Currently studying a diploma of IT specialising in networking and cloud architecture in Australia. Always found the concept of VLANS confusing but this video and your previous video on VLANS from years ago cleared up so many misconceptions. Keep em up! Your doing a great job teaching the next IT generation

Best timing... I'm studying for my ccna. I watch some videos on subnetting and vlans but this this video info that I didn't get from other videos... Thanks so much.

Your videos are amazing. Complex concepts you are explaining in easy ways so that everyone can understand. Hats off.

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Thank you for this! Never really understood this fully. Keep up the high quality videos my guy!

Thank you for the refresher! I’m doing this at work this week and it helped remind me of the differences.

Another excellent video. By far the best collection of introduction videos to any/all network related matters

thank you for providing a great way to learn these things! you are a gem in this community.

Thank you for explaining things so clearly. I’m a week away from my A+ core 1 exam and you’ve been a huge help.

You really make such beautiful videos. The world needs more people that can explain with videos like you do.

this 6mins video beats my 2hours lecture. thank you

Yes, this is correct, but one unfortunate point that was left out is that subnets are not just physical and defined at routers in a complex network - especially in this age of Software Defined Networking (SDN). Subnets can be virtualized just like VLANs (and this has been the case for quite some time now) on a single router and/or layer 3 switch at a single port such that your VLANs and subnets can all be on the same network port at the router - plug a single switch (configured with multiple VLANs) into that singular router (with virtualized subnet interfaces on that one router port) and you now have a logical separation at layer 2 (VLAN) and layer 3 (subnet). As an example: RouterA has two ports/interfaces - Eth0 (connected to the ISP as the path to the Internet) and Eth1 (connected to the switch, port 1). SwitchA has 24 interfaces/ports with port 1 connected to Eth1 of RouterA, which is configured as a VLAN trunk port (meaning ALL VLANs configured on the switch are allowed in/out of that port). RouterA Eth1 is configured with virtual sub-interfaces 1.1, 1.2, and 1.3 for VLAN1, VLAN2, and VLAN3 respectively and those sub interfaces are configured with subnets of 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24 respectively. SwitchA has ports 2 - 4 in VLAN1, 5 - 8 in VLAN2, and 9 - 12 in VLAN3, and again port 1 as a trunk port connected to Eth1 on RouterA. RouterA also acts as a DHCP server for each subnet and as the firewall & router to the Internet connection. When a computing device is connected to port 2 on SwitchA, the switch will send the devices DHCP request frames (layer 2 info) to the router as a broadcast to sub-interface 1.1 (VLAN1) and the router will send out an IP address within 192.168.1.x and no other device on any of the switch ports outside of ports 2-4 will be able to "see" that info. Essentially, network boundaries (security, segmentation of info/broadcasts/etc.) can be created on singular interfaces of routers and layer 3 switches and tied into layer2 devices to simplify the hardware requirements on a network nowadays, and with computer virtualization the rabbit hole gets much deeper, but yeah, this video is a basic representation of subnets and VLANs and a pretty good visual representation (the switch segmentation especially). Keep up the good work, but don't leave out the nuances (perhaps create other deeper videos).Consider even the fact that vendor implementations of the standards are so varied that from one hardware platform to another there are differences that can make the concepts confusing and challenging to implement - take Cisco vs. Sonicwall vs. Netgear vs. Ubiquiti vs. VMWare as an example - all very different to implement, but following the standards to achieve similar results on a network, and as a new standard is released, such as SDN, they all typically follow suit and release the standard on their hardware as a firmware/software upgrade to keep up with current network and computing trends (the never ending nature of "progress"!). Nice work overall!

You're providing very fruitful information for us in a funny and understandable way ! Many thanks 🙏

Thank you so much for all the videos you have posted! They are super clear, the animations are really helpful. I feel that I am finally starting to grasp the basics of networking. Thank you!!

Way back around 1990 I was in a training class and I recall a statement being made that stuck with me. Switch when you can, route when you have to. Although much has changed in those 33 years it is probably still a good rule of thumb.

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The guy explaining these videos is a genius - no one has made IT more understandable to me than this legend. Thank you man!

Love the Graphics, and animations, it really helps me visualize equipment and connections practically. So much better than watching a man giving lecture or reading on a PPT.

i am lucky to find your channel. Studying exam for CCNA. and your videos helping me to understand how things work in networking. ❤️ thank you

Wow 1.9k views in 1 hour! Congratulations on making such clear informative videos.

Sir just want to leave a thank you for what you did, really appreciated it! :)

Absolutely fantastic explanation! Thank you from the bottom of my heart.

Nice. This really cleared things up. Out network guy recently created a vlan at my local church. We recently acquired some NDI cameras for our live broadcasts. I recommended a "separate network" (because security, bandwidth and potentially multicasting). He said "no problem. I'll set up a v-lan." So now i know (Roughly) what is going on.

I have been studying for over a year and your channel has helped me alot with my A+ and NET+. my current objective is the CCNA. I was wondering if you could do a video on Spanning Tree Protocol. It would be helpful for me and many others! cheers!

wonderful! Thank you so much. We're waiting for a lesson on how the SSL protocol and web certificates work. That will be so cool.

This man is an invaluable resource.

Howdy. VLAN had bugged me for some time. Crystal clear now. You are a wizard to deliver the big picture of stuff. Regards.

Man, I love your videos

Thank you SO much! I am a very visual learner, compared to just reading a book, so this was huge, as I previously had trouble grasping the concept of a VLAN. I thought somehow the entire switch was virtual, not just the networks. Silly me.

You're the best at explaining technology!!!

I always learn so much from your video's.

Your videos are 110% better than my tutor

Here you are back .. Great back ever.

Happy teacher's day ❤ sir.

Never stop being this awesome

Sir, I learn something that is relatable to in real world in every video i watch... thank you

Already knew this, but videos are just very nice to watch great content

Can't wait for the next network+ course

Thanks for explaining the differences between the two.👍

Exactly what I needed just now.

Hi, I am from India and almost watched each and every videos you published on this channel. No doubt, each video you published is highly informative and to the point. I can't resist myself to appreciate you, your efforts and the way you deliver complex things into much smaller, to the point and digestible form for easy to grasping. This is truly appreciable. Even in my view you are far better than many high degree holding masters, professors, and professionals in this field. However, I would be more than happy if you try to make videos on - 1. OSI Layers and their significance. 2. Similarity and dissimilarity between OSI and TCP/IP model. 3. About various protocols. 4. Network troubleshooting guide. Thank you very much in advance if you work on my above request. Love ❣️ from INDIA.

You make it very easy and interesting to understand! TY!

Great video as usual! Thanks immensely 🙏🏽

As always, great video!

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Keep up the great work Sir... I learnt a lot from your videos. Thank You ❤️

One disadvantage with vlans in a large enterprise is that if it the hardware fails ( the switch ) all the network will fail. This is the only video I watch from you so I don't know if you already did but it will be interesting to make another video with the pros and cons.

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this finally puts it in a way that makes sense to me. ty

I love how you explained this

Awesome video, such clarity. Thanks a lot sir for making it easy for us!!

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Fantastic video! Good job!

Great Video as always !!! Thank you man !! ❤

Something that never gets mentioned when instructors/books introduce VLANs vs Subnets is that each VLAN MUST have its own subnet as well i.e. VLAN 2 can have 192.168.2.0/24, and VLAN 3 can have 192.168.3.0/24. VLAN 2 CANNOT share a subnet with VLAN 3 (and in fact, if you attempt to do so, Cisco switches at least will forbid you from even attempting the configuration) My 2 cents and a very important feature that never gets explained - I had to learn this through years of labbing and working with equipment hands-on

Was waiting for your videos sir nicely explained . Need more videos on networking basics concept

Great stuff explained in simple words

Really informative and concise video 👍

Great video! Thank you very much!

Great effort. Thank you so much ❤️🙏

Great Video as always Sir, thank you kindly 😊

Thank you for another quality video. 💯✌🏼

Nice and very informative video. What kind of software do you use for animation ?

Another masterpiece as usual

Love your explanation

I use this for studying for my IT course and I always do well. Powercert is great at explaining fundamental IT concepts.

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Excellent as always 👍👍👍👍

Thanks for the Video, explained very well.

Such a nice video! Thanks

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Thanks for all

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The bit you missed is the ability to have one IT user sitting in the sales department with the VLAN option. In the real world there is not just one switch (or one per location) - there are many. And so you can tag a port for a department in a different location if it is set up correctly. That is the most likely scenario for using a VLAN in a large deployment.