Layer 2 Switching & VLANs | Cisco CCNA 200-301

Free KZbin Playlists from Keith:
Master Playlist for Cisco CCNA 200-301 ogit.online/sloth
Cisco CCNA 200-301 Security ogit.online/20...
Cisco CCNA 200-301 IPv4 Subnetting ogit.online/su...
And…
Keith’s Content at CBT Nuggets ogit.online/Ke...

[@_.alex.-]

I came here to watch a few minutes of L2 switching and watched the whole thing. Great vid and love your enthusiasm, really helps convey your knowledge. Subbed.

[@KeithBarker]

Awesome, thank you Alex! The entire playlist for CCNA 200-300 is here - ogit.online/sloth Adding new videos to that playlist each week. Thanks again for watching and for the feedback!

[@Monalexander799]

Same here. I mean it's so easy to learn from him.

[@roliramos1]

​@Keith Barker - The OG of IT If I watch the playlist are they in some type of order? Or do I have to figure out the order ?

[@parimi001]

My story goes like this... I started my career in 2004 when youtube was not a thing. I always asked questions to my peers, superiors, and peers in other departments. I was not able to connect the dots. In fact, most people would not share the info/question as they see me as a threat to their job. Since the advent of youtube, I have learned so much that I don't need to ask anyone at work. There are so many teachers like you Keith who is exactly what I was expecting at the earlier part of my career. You are awesome and the younger generation is lucky to have youtube and they don't even realize what people like you are offering (I would not say all, but most). God Bless you, Kevin Barker.

[@KeithBarker]

Thank you Venkat Parimi!

[@jacqueslee2592]

Wow. You worked in an era that you could have gotten a job with the fundamentals. Today, to be a network tech or engineer you will need the CCNA minimum or CCNP and years of experience and master's degree. I think before there was not much resources that were available and people were trying to keep their knowledge to themselves to be competitive and keep their job. I probably would have survived in your era. Today, I don't survive despite CCNA certification and degree and tech experience. I cannot get a job in this field.

[@WolvenMechaCore]

I have Watched David Bombal and Lazaro Diaz on udemy and it so much easier to understand and feel invested in learning and watch with you level of Passion and love of Networking!!! Thank you for all you do!!! I have Subbed and joined CBT Nuggets to enjoy your teaching and passion more :)

[@KeithBarker]

Great to hear!

[@allybiggs5423]

Started watching this series today you are a great teacher explain the concepts well. Thank you for creating free content appreciate this.

[@KeithBarker]

You're very welcome!

[@ezautorepair5143]

Keith one thing you said, hit home for me. Breaking a complex subject into small chunks. The first time I stepped into the cockpit of a C-5 aircraft as a maintenance tech and saw all the guages, I thought No Way, I'll ever learn this. Luckily, my trainer broke it into the fuel system, then electrical, etc. Took about a year and I was running the panels with the best of them.,. Thank you Thank you Thank you Keith. I am Loving this course and the way you instruct!!

[@imgtm]

😊 I always feel more energetic after watching your videos Keith 👍

[@KeithBarker]

Happy to do it, thanks for the feedback Gautam Sarma.

[@KeytarArgonian]

It’s 2021, I’m 5 weeks away from the end of my ccna course and your content.. is goddamn revolutionary 😂 you can’t know how helpful you are thanks man 👍

[@KeithBarker]

Happy to do it, thanks for the feedback Olli Compolli.

[@beautifulsstart]

I cried when you said, "if this is your first pass through networking, I'm happy you're here and I'm happy to be part of you journey". Thanks to you ❤️! My understanding of layer 2 before the video,🤦🤷. My understanding after the video💡🤓

[@KeithBarker]

Thank you beautifulsstart!

[@janjsr1]

Only trainer that makes learning any IT subject less tiresome as we all know things can get rather dry and boring, but Keith brings such energy and enthusiasm few nerdy dad jokes here and there to keep things interesting. Need more people like you in this IT training industry my friend and I think we would have a lot more qualified IT people out there, you are the best.

[@wiltonwell]

Hi Keith, thank you very much for your time. This lecture was very good, showing the devices just besides you and bringing up the command line made it very interesting. Looking forward to the next lecture.

[@KeithBarker]

Thank you for the comments! Glad you are here.

[@InstantCasette]

This is the best, most relatable explanation of this stuff I've seen, without going into super abstract stuff and showing actual hardware examples in the real world.

[@KeithBarker]

Thank you Jeroen van Wamelen!

[@bigB7367]

Very much enjoyed your lecture, I have never heard a simpler and more clearer explanation of concepts, Thank You

[@KeithBarker]

Glad to hear that!

[@sanddeeprudhra5597]

Hey Keith.🙏🏽Namastae...wow you look very charming handsome and pampered in this video...what is it?🎈🎂 Birthday? 💝Anniversary .. ? totally fresh look..😎no beard or nothing.. gooood.. stay blessed stay happy.

[@sudipbosu8787]

Hey Keith, could you please tell me which model of CISCO switches you are using here? And which switch is available in the market at the lowest price to practice switching?

[@HunsyKephao]

Every time I hear "token ring", I just think of the fact that there is STILL A TOKEN RING network of sorts set up here at my workplace. I guess that's the glory(?) of working at an old IBM building. 🤷‍♀

[@nawelboulahbal3430]

Oh my god, I just discovered this KZbin channel ❤, but what a great explanation and what mastery of the lessons 👍 Where were you all this time teacher ? I understood everything, thank you very much Greetings from Canada 🍁 🇨🇦 year 2024

[@ChasedWheels]

watched and practiced!!! ☑︎ vlan 10 interface FastEthernet 0/1 switchport mode access switchport access VLAN 10 [do] show VLAN brief

[@aamnaahmed414]

begginer here...life has given me lemons and i am trying to make lemonade out of it. my bro is helping me to squeeze as much as possible and has introduced me to your channel and no doubt i will achieve something for sure after following your channel.

[@KeithBarker]

Thank you @aamnaahmed414❗ You can do this.

[@Rether16]

@20:20 I am pretty sure I understand this but just to check: All NICs have a MAC address BUT in the case of the switches interface(s) they don't actually have a true "burnt" MAC address? (Excluding the switches management port) Instead the MAC of the connected device is learnt stored in the MAC address table and used on the switches interfaces(s)? Really informative videos Keith, Thank you very much!

[@derrik-bosse]

I think I found my course haha

[@zedzpan]

Absolutely love your teaching style. I learnt so much in such a short period of time.

[@artemkovalchuk2303]

My question is somewhat complex And I hope I can get the message across. In short - Why can't we use MAC instead of IP? The problem is in the hierarchy and in the routing tables, right? But what if we abstract from this idea and look towards the report of Radia Perlman, where she talks about how people initially did not understand the concept of Ethernet and L2 forwarding might not exist at all and all operations were performed (forwarding and routing) on L3. I will leave a link and timecode for the report.kzbin.info/www/bejne/p4ndkIWud6uEaJI It would be nice to hear Keith's opinion. Thank you.

[@memontaser]

Learning L2 quickly...Thanks Keith :)

[@lurinolt]

I'm on CCNA1 V7.02, I have a bit of attention deficit and I cannot tell you how much your videos have helped me, you make learning easy and enjoyable. I was having a hard time finding out what exactly a L2 switch VLAN is(most info available it's about L3 VLAN), ended up watching the whole video and learning a lot more than just that, you're a "no cape hero" my friend

[@KeithBarker]

Best of luck!

[@danielcoman9560]

Thank you for doing this! You really have a passion for this thing !

[@KeithBarker]

Thank you Daniel Coman!

[@aldoortiz9730]

Love the way you explain! Thanks for doing this!

[@KeithBarker]

Glad you enjoyed it!

[@Koolstuff7777]

Great demostration and easy configuration in laymen's term, were even a beginner can understand. great job 🤓🤓🤓🤓🤓🤓🤓

[@Coalpot-Jollof]

Hi Keith, what does ethernet really mean? Its is just a standard for wired LAN communications?

[@kanimozhi6262]

Keith, thanks for this .. but in which scenario Bob computer wants to talk to pc2 .is it when http server hosted on pc2 .sorry if my qn is wrong 🥺

[@piyapornsmedman6502]

I know now the bloody layer 2 and VLANs ! thank you so much for your videos :)

[@eduardmuis3366]

Great informative video! Thanks a lot!

[@KeithBarker]

My pleasure!

[@rickyrexworld]

Your CBTnuggets course on Security+ was a huge reason why I passed last month...Thank You!

[@KeithBarker]

Great to hear! Thank you Ricky Rech!

[@gaget_man]

Such a good and relaxed way of teaching. I love it!

[@KeithBarker]

Thank you gaget_man 1609!

[@SEAsia_RTS]

Hi, where can i have all your sketches and notes from this video? really appreciate your help

[@ChasedWheels]

Could I ask you, which software do you use to make these animations like whiteboard or

[@vamsinareddy5069]

ohh man never imagined learning CCNA will be so fun.. nope nope nope nope :)

[@AbdulrahmanAbdulaziz-kt7td]

Hi Keith, i appreciate your way of transferring the knowledge to us. can you please read my example below to answer my question? i am sending ping request from PC 1 to PC 2, the switch does not have MAC address of PC 2. switch will use ARP protocol to identify the MAC address of PC 2. to my knowledge switch deal with frame which is L2 and does not contain IP field. so how the switch going to map the IP of the requested PC with its MAC? i hope i have delivered my question correctly. Thanks in advance.

[@KeithBarker]

Thank you for the question Abdulrahman Abdulaziz. "I am sending ping request from PC 1 to PC 2, the switch does not have MAC address of PC 2. switch will use ARP protocol to identify the MAC address of PC 2. to my knowledge switch deal with frame which is L2 and does not contain IP field. so how the switch going to map the IP of the requested PC with its MAC? " If PC1 doesn't have the MAC address of PC2, PC1 will issue an ARP request. When PC2 responds to the ARP request, the switch will now learn the MAC address of PC2 (if it didn't already learn it from an earlier frame from PC2). When the switch receives a frame and doesn't know where it live, it will forward the frame to all other ports associated with that same VLAN. Hope that helps.

[@bennywilks9367]

I have a little bit of constructive criticism.....honestly not breaking your balls. The worst thing about most videos is unnecessary talking. You are a very knowledgeable guy, but you are definitely in that category. Example: 11:30ish mark of this video. Sometimes it can be 'fun' and keep things interesting, but usually not IMHO.

[@KeithBarker]

Thank you Benny Wilks! Noted!

[@kashifafridi9532]

I really appreciate the way you teach the concepts, the fun to part to create an active environment to focus. thank you , Keith..

[@KeithBarker]

Thank you Kashif Afridi!

[@vmorten1]

You are such a nice guy and good teacher. Keep up the good work :D

[@KeithBarker]

Wow, thanks!

[@marckdavies6451]

Keith I got both answers correct. All devices with Network interface card has a MAC address, layer2, Ethernet, Physical, or in or burnt in address. Second answer, if a Client wants the layer2 address of a network device on the same network, it obtains it through ARP. Yeah!!!!!!

[@KeithBarker]

Thank you marck davies. Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord Thanks again marck davies!

[@yonasbht]

wow, I watched it 2 times, it is very interesting. thank you

[@TheGareChan]

Thank you, thank you! Your videos are amazing, super helpful in grasping introductory concepts!

[@KeithBarker]

Happy to hear that!

[@NanookFieryArcticSkyy]

Obvious to me, you know alot about this light years beyond I understand. Question: For a wireless connection to your a switch or router, would it be connected to some other port (virtual ) since it is obiously not connecting to physical port since it would not be entering via a physical rj45 on the router ? So another question is spawned, so wirelees goes through an access point (AP). Where does AP fit into this? My modem/router at home obviously has AP build in. Where would AP fit in this topology of Router / Switch etc? Like your presentation skills. Keeps it interesting. Thank you.

[@KeithBarker]

Thank you Mark Thomas. Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord Thanks again Mark Thomas!

[@munjidei1814]

The Way you are teaching is awesome , really appreciate your work.

[@KeithBarker]

Thanks a ton

[@mrnooobs3871]

Got confused in some parts. Went to cmd and did "arp -d *" and got this escalation error thing. When it comes to arp, you need 2 devices correct? I might right cuz im using one laptop and not another device connected to my laptop and maybe thats why I cant send out an Arp request

[@KeithBarker]

Thank you MrNooobs. Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord Thanks again MrNooobs!

[@kehbumasama5020]

great one sir, you are truly a blessing keith. I enjoyed every second of it, guess i like your style.

[@KeithBarker]

Thank you kindly

[@yermeybrown991]

thank you very much, i am in cours CCNA 2 in an institution and it is not good at all as they explain. the way you explain is very good and dynamic, thanks a lot im goin to watch as many videos as i can to win CCNA 200-301 blessing from Costa Rica .

[@KeithBarker]

All the best

[@sanchithvenkatesan516]

awesome content. love your videos and that doll hanging behind you. my big doubt : what's that animal and where did u get it from? I want a similar one, its lovely.

[@KeithBarker]

Thank you for the question Sanchith Venkatesan. The sloth(s) I purchased from Walmart.

[@chrography]

Hi Keith! I have a question. Hub (or dumb hub) isn't secure because it sends data to all devices connected to its ports, whereas Switch is more secure because it only sends to the destined device connected to a particular port. But, when a Switch first starts, it learns by broadcasting the data to all ports hoping that the destined device is there (ARP process), doesn't that mean it's also not secure?

[@thisguysnewaccount1]

Not exactly, yes the switch will need to send out a few broadcasts when learning what's on the ports but it's not just sending the full payloads to all devices on the network. Switches are smart and can send a request for just the MAC it's looking for once found it will then send the full payloads of all packets. It will also then store both the sending and receiving devices MACs in it's MAC table. Unlike a hub that will send all data to all devices every time, unsecure and a waste of bandwidth.

[@linasaid8925]

i appreciate you for making elaborative videos like this! thank you so much!

[@KeithBarker]

You're very welcome!

[@amha251]

This guy knows how to teach. Knowledge + Articulation.

[@KeithBarker]

Thank you @amha251!

[@madandumrerijal1783]

Hey I love your's teaching style Lots of Love from Nepal,Kathmandu(Asia)

[@KeithBarker]

Thank you Madan Dumre Rijal!

[@JuanRodriguez-mx5ih]

Just passed my CCNA exam today! Watched all Kahoot list yesterday, as well as a couple of your videos to round up before the test. I want to thank you for offering your knowledge and motivation through this platform.

[@KeithBarker]

Wonderful! That is sooooo great. Congratulations Juan ❗

[@JuanRodriguez-mx5ih]

Thanks! I am already going through CCNP ENCOR at CBTnuggets.

[@diyasharma96]

Adored the "here, let me prove it to you" segments. Please, keep doing as many of those as you can. Also, it would be a crime against humanity if you stopped teaching!

[@KeithBarker]

Thank you Manit Shah!

[@rameezkhan9132]

I will search for network topics on KZbin with your name and get the video to better understand the concept. Your videos are very informative, thank you very much.

[@KeithBarker]

Awesome, thank you!

[@Nati_Natii]

Would it be necessary to get a switch and router in order to practice? If so, any suggests? Or is packet tracer simulation good enough to prep for CCNA

[@KeithBarker]

Thank you for the question @Nati_Natii. Packet Tracer is more than enough to practice for the CCNA.

[@itgeek4446]

Thanks for clearing up so much confusion on the names of the devices!!! I've been pulling teeth with so many different professors. They just can't keep it SIMPLE like you!!!

[@eshwarbillakanti2552]

Hello Keith, How to make PC's of two different VLAN 's communicate with each other?

[@st10689]

You will need to use a device which can do InterVLAN routing. Either a router or multilayer swith

[@kelliroberts2494]

Studying for CISSP and came across this gem!! Also, where can I buy a chair like that ?

[@KeithBarker]

Thank you Kelli Roberts! The chair is from Amazon.

[@adipurnomo5683]

I would love Keith barker stuff as well as David Bombal, NetworkChuck

[@paulbrux1965]

Never thought that Tony Hawk is not only greate skater, but also a great IT guy Really nice explanation))

[@KeithBarker]

Thank you Paul Brux! People say I look like him quite frequently. :)

[@KetsodaAyham]

if one day i get a job and have enough money to travel i have to meet you

[@jashandeep8192]

i knw i'm kinda late but can u live stream ccna topics like wireless on sundays ..really appreaciate these videos happy Holidays everyone ; )

[@KeithBarker]

Thanks for the idea!

[@aldilawidyastuti2045]

Hi @Keith, thank you very much for the videos. It is super helpful! :) I would like to also read the chat replies but it's said that "Live chat replay is not available". When you asked questions, the answers weren't said out loud sometimes but it's written on the chat. So it'd be great if we can also read the live chat reply. Thanks again! :)

[@hv20canon]

Okay. I am one of the fools who thought subnet and vlan are the same thing.

[@KeithBarker]

Thank you hv20canon!

[@shrutis4709]

Keith... must say...you are an amazing teacher..the hard work you put in to explain the concepts in such an easy manner is really appreciable...lots of respect to you!

[@KeithBarker]

Thank you Shruti

[@feliciabarrios3921]

Man, Keith Barker is such a gem. I'm only upset that I did not find his videos sooner in life. Such great stuff and I'm so happy these videos exist.

[@KeithBarker]

Thank you Felicia Barrios!

[@Pa168777]

Agreed man! Wish these videos were out a millennia ago, it’d had made my life less stressful- lol!!!

[@ChasedWheels]

I didn't know that IT analysts were superstitious with numbers lol It's just a number in the MAC-Address

[@jacobhonis182]

The cups- just what I needed. Good work, watching on. thank you

[@KeithBarker]

Thank you Jacob Honis!

[@thuggy67]

the type of guy you need when working in a ccna environment , he needs to make lab videos and scenarios and show us how to do routing, he has dangerous knowledge that can't be held in.

[@KeithBarker]

Thank you zac morris

[@thuggy67]

@@KeithBarker just being honest , no problem

[@ahmedabdelazizahmed9430]

How can I get your notes, please?

[@fluffy1973]

I remember my days of 50 ohm terminators, coax hubs and serial coax connections... DEC, 3Com and Novell

[@KeithBarker]

Ahhh, those were some fun times! Thanks for post!

[@boots7859]

Arg, I originally passed up getting into networking when a friend of a friend pulled out his Novell CNA book in '92. I'm still kind of in shock at how much Cisco has deleted in 301. I remember when everyone sighed in relief that Appletalk was deleted, however the current CCNA seems to be missing a lot of foundational stuff now.

[@kylewilliams9240]

I love your teaching...I would admit I am a bit confused on the labs because I have no experience in packet tracer so I guess it would help if anyone can point me on a direction where I can learn that to keep up with the labs

[@kuldeepcet]

Very informative . Your expressions attracts a lot.

[@KeithBarker]

Thank you @kuldeepcet!

[@izzathomar6206]

Thanks for doing this! five stars Keith ....

[@KeithBarker]

Thank you Izzath!

[@mohamedismail2733]

thank you, really helpful information and you summarized a lot of things , i wish all the best for you

[@gionibegood6950]

very useful movie, i didn't find anywhere information about coax and 10M networks,, why are still there because no device are using?

[@KeithBarker]

Thank you for the question Gioni. In the early days, about 20 years + or more ago, we used coax and 10Mbps networks. The history of baseband, and a shared bus, and the evolution to hubs, then to layer 2 switching help a learner understand the tech we are using today.

[@gionibegood6950]

@@KeithBarkernow I delayed to set up my network with few hours, just to see the "trick and tips" about ansible from you as a professional :-)

[@travisgleason4428]

New to this and i just want to appreciate you Keith . This is going to change my life

[@KeithBarker]

Thank you Travis Gleason!

[@tonyz6672]

thank you very much!

[@tjake7864]

This is still relevant. Nice!

[@nathanramirez691]

@Keith this is a very good class thanks for putting out vids

[@KeithBarker]

Thank you!

[@thabongubeni8313]

L2 explained properly

[@coffeemaddan]

~50 mins I finally managed to mentally pull VLANs back to L2 in my mind. I've constantly associated VLANs with IPs and subnets. The broadcast domains logic has finally clicked. Thanks for your content, it's helped me greatly. :)

[@KeithBarker]

Glad I Could Help!

[@PericlesBuarque]

Your are the best, congratulations friend!

[@KeithBarker]

Thank you Péricles Buarque!

[@deknusapt]

Just got this video appear on my KZbin recommendation, and looks interesting how the explanation goes, so enthusiasm to learn with and thankyou for the knowledge, easy to understand..

[@KeithBarker]

Awesome, thank you!

[@RaulMrTechieTips]

Keith! I'm working on my VMware NSX Cert which is more about networking rather than vSphere skills. Hey! the way you teach is great and easy to understand. Thanks!!!

[@KeithBarker]

Thank you Raul!

[@dmx71234]

Thank you for alway sharing your knowledge sir!

[@KeithBarker]

Always welcome

[@matthewsnyder6016]

Think of VLAN as a Partition. - Brilliant!

[@KeithBarker]

Thank you Matthew Snyder!

[@ankushkaushal9961]

Thank You Keith

[@PaulEllisBIGDATA]

Now I know why your smart @ 29:44 you took a drink of water and I noticed the plastic bottle said SMART WATER .. on my way to WalMart and buy mine. LOL SIKE!

[@KeithBarker]

💧 Thanks Paul!

[@elvislam4649]

I accidentally bumped into Keith's video and found it super useful. It helped me clarifying my networking concepts. Thanks a lot Keith. Good job.

[@KeithBarker]

Great to hear!

[@marcusmah21]

Are these the same video lectures with those in CBT Nugget by Keith Barker?? Then why should I buy CBT Nuggets membership?? @@;

[@KeithBarker]

Thank you for the question Marcus. These KZbin series are more like office hours for a teacher. In these videos we discuss some specific tech or option, then spend the rest of the stream having Q&A. @CBT Nuggets it is 50+ hours of labs and focused training based on the 200-301 blueprint, and it is very to the point and thorough on all those topics. We have a free 7 day trial if you would like to check it out. ogit.online/Keith-CBT Thanks for the question.

[@st10689]

Hey Keith. New subscriber here! I watch many guys explaining CCNA topics and they are doing a very good job, the same happens with you of course. You are the only one that i can actually sit down and watch for about 1 or 2+ hours continuously and not getting bored. I have a question regarding MAC addresses. Why we need to use both MAC addresses and IP addresses? My understanding of why we need both is that MAC addresses are used for hop to hop delivery and IP addresses are used for end to end delivery but i don't have a clear understanding. Can you explain please???

[@KeithBarker]

Thank you Stefanos Kattirtzis. Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord Thanks again Stefanos Kattirtzis!

[@ankit3437]

I need a complete package for CCNA. Is there a playlist where I will find every important thing to pass the exam and get the basic skills? I have zero experience in networking.

[@KeithBarker]

Thank you for the question Ankit. I would suggest to start with Network+, and for the next few months, it is free at CBT Nuggets. Here is the link: adept.at/cbtnuggets/network-n10-008

[@ankit3437]

@@KeithBarker Thank you so much :)

[@ankit3437]

@@KeithBarker is it enough for CCNA ?

[@3232groundhog]

Really good stuff. Excellent teaching tool to supplement CCNA learning course. Also, your enthusiasm is contagious. However, I’m surprised you’re surprised that 666 should appear in the MAC address when we all know that networking is the work of the devil. (PS: I’m not really superstitious of silly man-made constructs) 😉

[@KeithBarker]

:) Thank you Steven!

[@louiseduncan4744]

Keith Barker is such a darling and so great at teaching.

[@KeithBarker]

Thank you @louiseduncan4744!

[@WiseInetellect]

Dude, You Are An AMAZING Teacher!

[@KeithBarker]

Thanks! 😃

[@vahidsarikhani9403]

Very good but You speak very fast and i am not englisch😐😐

[@KeithBarker]

Thank you Vahid Sarikhani, I will work on speaking a bit slower, and a bit more clear. Than you for the feedback.

[@vahidsarikhani9403]

Thank you.You are the best🙌❤

[@ronh8391]

Keith, thank you for your CCNA video training. I love your style of teaching. It resonates with me. Your labs are a great help. Keep up the great work! ☝

[@KeithBarker]

Thank you @ronh8391!