Free CCNA | VLANs (Part 3) | Day 18 | CCNA 200-301 Complete Course

[@JeremysITLab]

ERRATA: At 14:50 the switch won't flood the frame. The destination MAC of the frame it received was SW2's own MAC address. SW2 is functioning as a router (default gateway) in this case, so it has to look up the destination MAC for 192.168.1.1 (the PC) in its ARP table and add a new Ethernet header with the destination MAC address of the PC. If it doesn't know it, it will broadcast an ARP request. Apologies for the careless mistake.

[@Alberto.81]

Please bear with me. Actually this is good to me for clarify one point. A multilayer switch has access to mac-address table as much as routing tables correct? One of the two must be known right? Why broadcasting arp request, this is not clear to me. (and the broadcast arp request will be sent only in vlan 10 correct?)

[@JeremysITLab]

@@Alberto.81 Yes, multilayer switches have both a MAC address table and routing table. It broadcasts an ARP request in VLAN10 to learn the MAC address of the destination PC (192.168.1.1).

[@atishojha7186]

Why don't you pin this your comment? @@JeremysITLab

[@chindianajones3742]

There was definitely a lot of information in the last 3 lectures on VLANs. I certainly struggled trying to wrap my head around all of the concepts and how they are implemented. A good idea to help you get used to this stuff is to build the network topology from the ground up (in packet tracer) and then do all of the activities in the labs from the past 3 days, manually configuring everything yourself. I found it frustrating trying to trouble shoot all the problems but it isa very good exercise.

[@monish4414]

Me too struggling with lot of concepts 😖😖

[@chindianajones3742]

@@monish4414 sorry to hear that haha. It's not easy stuff and in terms of volume, the amount of material we have to cover for the CCNA is more than a lot of college/university courses. What are you having trouble with specifically?

[@freakycookie101]

You're absolutely right. Its such an ocean of information and it can be difficult trying to just jam everything in. I definitely agree to configure it yourself as that will really cement the concepts into your brain.

[@Psouffle]

Where are you today with your CCNA studies? Is it interesting looking back at where you were struggling on just a while back? Your comment hits home for me right now, putting in the work right now.

[@stephenhu118]

cannot agree more. Practicing in this lab work helps a lot - especially when you cannot make it in the first try 🤣

[@ernestibrahim7532]

I will surely remember Mr Jeremy in my journey towards achieving CCNA

[@JeremysITLab]

Thank you, good luck!

[@kelecortez5834]

same here..., he started me down the path

[@sonnahdingsala2279]

I hail you J, this is the art of teaching. I was planning to take Neil Anderson CCNA Course to speed up my study and go in for the Exam before the end of the year but this video has changed my mind. No matter how long it takes, I am ready to stick with you right till the very end. I'm lucky so, so lucky to have met you at the beginning of my IT Career. You Teaching method is one of a kind and I'll never forget you as I ladder up in the IT world. Once again, Thank you sir!

[@JeremysITLab]

Thank you so much! By the way, I used Neil Anderson's course when I studied for my CCNA, I recommend it! But I'm glad you like my course :)

[@josephrocca8181]

My ADHD will only allow me to focus on Neil Anderson's accent.

[@t0ucheg00dsir]

Man Jeremy, the way you pause and then reveal information is gold. Makes me smile :)

[@maxwellchessdotcom6952]

"Hey baby, Jeremy is coming out with a new video this Saturday. Wanna watch it at my house?"

[@annexgroup6878]

"Yeah girl, let's network and chill"

[@stardustmotion]

wanna see jeremy talk about router on a stick? want to see it again?

[@2025canvbetter]

@@stardustmotion😂😂😂

[@Aaron14LifeZZZ]

lol@@stardustmotion

[@anshulsingh9538]

@@stardustmotion 💀

[@slsv19]

To anyone watching this video…BUY THE COURSE!! Is worth it!!! This teacher is a genius!! The best of the best! Ty Jeremy!! 🥇

[@JeremysITLab]

📚 Hope you all enjoy the Boson ExSim question at the end of today's quiz! I'll be featuring one ExSim question at the end of each lecture video from now on. If you want to get a copy of ExSim, click here: bit.ly/BosonCCNAExSim

[@TuanLe-uz2fb]

Oh that's great! Thank you

[@chrisrupa526]

Hi jeremy.can u provide this course with certificate so it can helpful for all in this lock down situation.plsssssssssss kindly reply me.

[@JeremysITLab]

The course will probably be finished by the end of this year. If you want the certification you'll have to take the CCNA exam (exam code 200-301) from Cisco!

[@Hossam_Refky]

isnt the correct answer for question 1 is a and b not b and c as configuring the IP address only doesn't mean the router will understand that there is a vlan

[@JeremysITLab]

@@Hossam_Refky Watch the 'Native VLAN on a Router' section of the video again (2:35 - 9:35), I explain it there. Basically, for the native VLAN the frames are not tagged with the VLAN ID, so the router doesn't need to know about the VLAN.

[@ObaDayo]

Love how the current video provides even more clarification on concepts in the preceding video. Your videos are great sir, thank you!

[@imjinaah]

Reviewer 0:34 Things we'll cover 2:35 Native VLAN on a router (ROAS) Wireshark Capture 5:26 SW1-R1 6:57 R1- SW2 8:05 Native VLAN on a router (ROAS) continuation 9:47 Layer 3 (Multilayer) Switches SVI (Switch Virtual Interfaces) 12:40 Sending traffic outside LAN with SVI 19:41 Inter-VLAN Routing via SVI 20:18 Problem that may be encountered 23:36 Things we covered 24:37 QUIZ!

[@maksudmuzaffarov]

Amazing, thank you for your help

[@imjinaah]

@@maksudmuzaffarov you're welcome! :) will be continuing with the time stamps again soon! :)

[@Tankovich777]

it is really a 100 % full fat lecture needs a lot of time to be digested , you made a great effort Mr.Jeremy

[@ajayimorakinyo846]

You’re a blessing Jeremy, thank you again!

[@JeremysITLab]

Thanks, my pleasure!

[@cybrotech2193]

@@JeremysITLab may i have the full course jeremy for a payment, i need to complete this course ASAP during this lockdown. i cant without your tutorials, please

[@IamEgoDrift]

Watched this 4 times and my head still hurts. Toughest vid so far

[@se7en_tv]

8th time's a charm buddy.

[@yushikaj.7164]

I thought i was the only one. It's 2am and i was stressing over this bc It's hard to grasp so many things at once in this video

[@leontrey777]

@@yushikaj.7164 ditto 🥲

[@c7po457]

Great video, Jeremy! I'm happy for you that you seem to have gotten a sponsorship from Boson! I'll be picking the practice test from them.

[@JeremysITLab]

Thank you! I've been recommending them ever since I started my channel (since I used their products in my studies), now we're working together via my affiliate links and featuring their products in my videos. Definitely get ExSim before you go for the real thing!

[@c7po457]

@@JeremysITLab I will! That's a really cool feature that shows you why the answers are wrong and right

[@prashantkiratkar.5747]

You have an AWESOME TEACHING STYLE JEREMY! I don't think anyone can compete you for that! I do request you to keep your videos short however. I found the Day 17 & 18 lecture videos overwhelming as a lot of concepts were covered & thus i had a hard time remembering them. Today is day 4 & i am beginning to remember all the commands & most of the concepts. There are many like me & even those who aren't will still benefit from this. Thanks again for your marvellous videos! God Bless you!

[@JeremysITLab]

18 lectures in 4 days is quite a lot! I put a lot of information in them because I expect that you'll do one lecture per day, take notes, review those notes, do the practice lab, maybe make a lab in packet tracer yourself, review the flashcards, etc. If you do all of those things before moving on to the next lecture, I think it will be easier to remember all of the contents. Anyway, I'm glad the lectures are useful for you! Good luck!

[@prashantkiratkar.5747]

@@JeremysITLab Lol! I was talking about 2 lectures in 4 days, & not 18!

[@mundoin5583]

Hi Jeremy. Had my CCNA 200-301 exam yesterday and DTP and VTP and several other topics were in the exam. all in al, around 7 questions were from topics that are not supposed to be in the exam yet they were. also the vagueness of the questions are astonishing. My toddler son would have made questions that a human can read and understand better than them effffffs . :D

[@JeremysITLab]

Unfortunately that's to be expected from Cisco exams! How did you do on the exam?

[@mundoin5583]

@@JeremysITLab I failed , 817 points, my second shot is on Monday. I was burned out, started studying 3 months ago and it was just a bit too much on my mental health I think. And the test center wasnt helpful much made me wait almost 4 hours.

[@marcin5272]

Well... Hard to say anything different than: Awesome! The examples are very detailed yet so easy to follow as many options of configuration are covered at one go. Fantastic material! Thank you Jeremy :)

[@JeremysITLab]

Thanks Marcin :)

[@samisaifoor]

You deserve a Salute because your teaching is the best and the hard work you did, is showing in the video. **

[@JeremysITLab]

Thank you, Sami!

[@ninius82]

Thanks Jeremy! Your course is pure gold for every one who wants to start learning networking, not only to pass the exam.

[@CosmicBrain21]

Cheers Jeremy. I'm loving your CCNA course and I've almost caught up with the latest video. Out of curiosity, how many more videos will you be posting to cover off the rest of the CCNA? Just as a rough guide, are we 40% 60% of the way there etc. All the best!

[@JeremysITLab]

Probably about 40-50% at the moment!

[@ebrahimmahyoub6993]

every day I get more knowledge out of these videos, So THANKS MR.JEREMY

[@JeremysITLab]

Thanks Ebrahim, glad to hear it ;)

[@ebrahimmahyoub6993]

@@JeremysITLab YOU ARE SO WELCOME, you deserve more

[@maxwellsedeman8724]

Hi Jeremy. Like many others, am I extremely thankful for people like you who offer such high quality and information rich videos for free. You have no idea how much it means for someone like me, with the current life circumstances I find myself in. SO THANK YOU JEREMY!!! With that being said, I'm struggling to understand option 2 to setup native VLAN on ROAS. When you used example at 08:19 of the video, do one only configure one of the known VLANs with a native vlan on the one physical interface, and keep the rest of the subinterfaces as is? your response would be immensely appreciated. PS. I'm in awe of the work you are doing.

[@wottowutzke]

Very Very important Course, I´m learning a lot,, God Blessed you and your Team...My best classes of CCNA preparation...It´s nice pretty good... Thanks a lot...

[@rotrose7531]

Thank you very much, the tutorials are so engaging that even a hard topic like this becomes interesting, thank you

[@Alberto.81]

Thanks Jeremy for another great lesson! 👍👍👍.

[@JeremysITLab]

Thanks Alberto :)

[@johnmikky9517]

Wow...Thank you so much Jeremy for this..You are amazing. Please how many more videos do we have left for this course cos some of us are actually hoping to take our cert exams after your videos on this course.From October last year till now everyday video you 've uploaded is just awesome and keeps on getting better Thank you

[@JeremysITLab]

I don't know how many videos are left, but I guess it will be about 50 'days' in total.

[@johnwilliam2381]

@@JeremysITLab Please i would like to know if these series would be completed by 1st half of the year. Thank you

[@johnmikky9517]

ow okay. great today's own is day 18, so I guess that will extend to December 2020 or January 2021 before we reach day 50 comparing the amount of videos on this course from November. Thank you so much Jeremy for the heads up at least I can prepare my mind towards that.

[@jasonliu9744]

Jeremy, you are working so hard, thanks for updating.

[@JeremysITLab]

Thanks Jason!

[@paimanpaiman9743]

Love you Jeremy for explaining it in such an easy to understand language, god bless you 😍

[@samucancld]

amazing implementation on wireshark, u are a hell of a teacher

[@JeremysITLab]

Thanks Samuel :)

[@greeneyes867]

HI Jeremy. i would like to thank you for your videos. They are really helpful. May i know when will you upload the rest of the videos. you are really amazing and so addicted to your way of presenting the CCNA

[@JeremysITLab]

I upload each video when I finish making it, usually one video per week.

[@vincenzomarano4536]

Hello all, sorry form my very quite english. @Jeremy at the minutes 13:32 (if i've rirght heared, you sayd the the traffic is tagged (but in the escheme the link between sw2 and r1 is an point to point not sub int in r1). if there are not sub int the traffic it should not be untugged?

[@JeremysITLab]

The explanation I give from 12:47 - 13:34 is a review of router on a stick, it's a Layer 2 connection between SW2 and R1, and R1 is using subinterfaces.

[@vincenzomarano4536]

@@JeremysITLab ok.. there are a sub (three sub int) and not one link. tks

[@wolodymyrpidluznyj181]

Simply the best online training. Thank you Jeremy.

[@JeremysITLab]

Thank you :)

[@mhere7595]

Thanks for your amazing content! What happens to untagged traffic on a trunk port if the native Vlan is disabled?

[@JeremysITLab]

The native VLAN can't be disabled! Just assigned to an unused VLAN.

[@mohamedabdulle6250]

Course content and delivery both are wonderful.

[@JeremysITLab]

Thank you :)

[@backandtotheleft3157]

If i hear you swallow, your tongue touching your molars, or you breathe in through your nose ONE more friggin time................I'm gonna continue watching all your videos because it's the best on the internet.

[@FatiSouri_eng]

17:33 Why we didn’t use the NO SHUTDOWN command when we configured the router’s interface ?

[@revanmardagh]

What application do you use to make graphs of networks in the video? (an example would be the graph at 15:29) btw, love the videos! your ability to teach is unlike anyone else! :D

[@89OptimusPrime]

excellent video, thx for your dedication on this material, amazing teacher!!

[@yeo1397]

Thank you very much for these VLAN Tutorials! I understand it now, it took me awhile.

[@JeremysITLab]

Nice! Glad to hear that :)

[@rajivkothale]

Thanks Jeremy. You are doing a great job by sharing such informative videos and helping understand the core concepts with ease. Keep up the good work👍

[@Fawazkutti]

your teaching flow is amazing bro .

[@JeremysITLab]

Thank you! :)

[@jamesharris1613]

Awesome video. I like the addition of the Boson ExSIM bonus question. I'll definitely be purchasing the Boson exams as I get closer to finishing your course.

[@andybalding3573]

Hi Jeremy. Thank you for your dedication and the effort you put in to this videos. It shows a lot in the way you explain things. I have been following your videos from the start (since the lockdown) and must say, i have learnt a lot. My question would be, all the PC's are pinging each other fine but can not access the internet. Where should my focus be ? Thanks once again.

[@JeremysITLab]

You'll need to configure routes on the multilayer switch and the router for it to work, the switch has to know about the destination on the Internet you want to reach, and the router has to know about both the destination on the Internet and the internal networks.

[@andybalding3573]

Thank you.

[@rtb7926]

Thank you for introducing the BOSON questions in the Quiz! Will be diving deeper into that

[@nasirchowdhury94]

Much appreciated your hard work Jeremy!

[@JeremysITLab]

Thanks Nasir!

[@opst1704]

14:52 Destination ip address and destination mac address are known. I don't get how SW2 knows (determines) trough which port it should send the message (that it received from PC in vlan20) ...? It sends it out of g0/0 (trunk port) but how does it know that?

[@فردوسمقبول]

Thank u jeremy Eagerly waiting for this 3rd part of vlan God bless u

[@JeremysITLab]

Thank you!

[@jstash125]

14:50 The frame itself would not be flooded to all interfaces in Vlan 10, but an ARP request would be, right? I even recreated this lab and cleared the mac address table of Switch2 and tested this with a ping and came up with this result.

[@JeremysITLab]

Yes, you are correct. Careless mistake on my part. The switch is functioning as a router (default gateway), so it has to look up the destination MAC in its ARP table. If it doesn't know it, it will send an ARP request.

[@jstash125]

@@JeremysITLab Thank you for the reply! I really, really appreciate all the work you have put into this series. I have learned so much.

[@dimitrie17]

question: WHAT IS THE MAC ADDRESS OF AN SVI??? A host must know it in order to send traffic to a host in a different LAN. If a host sends an ARP request of its default gateway, which is an SVI, what information will it receive?

[@verumignis4778]

ooooh my it is so tempting to make my own ccna practice exam, would be a project to learn topics and it would mean people could stop paying boson a hundred quid for some practice exams.

[@noahroach4931]

At 22:06, you said "and/or" for the prerequisites of SVI creation. Which one is it? Does it need both a trunk and an access port, or just an access port or just a trunk. Does it need one or the other or both at minimum?

[@sat_talk]

I don't understand how PC (.65) in VLAN 20 can talk to PC(.1) in VLAN 10? 14:29 . technically we can say by using SW2 L3 switch it could be possible but when it comes to Layer 2 switch SW1 security how VLAN 20 can talk to different VLAN 10 PC no matter routing is enabled on SW2?...If it is so then what is the purpose of VLAN security?.. please explain this

[@JeremysITLab]

Hi, good question! The point of VLANs is to separate them at Layer 2. If a PC in VLAN 20 sends a broadcast frame, it will only reach other PCs in VLAN 20. To send traffic between VLANs, the PC must send the traffic to the router, which will route it between the Layer 3 subnets. You can apply security policies at the router using ACLs (Access Control Lists) to control traffic between subnets. I will talk about ACLs in a later video.

[@sat_talk]

@@JeremysITLab Ok. thanks

[@rajeshjsaharan]

Thank you so much Love from 🇮🇳

[@JeremysITLab]

Thanks Rajesh!

[@shlomiunger3518]

Amazing VLAN Lessons!!! Thanks so much!

[@JeremysITLab]

Thanks Shlomi :)

[@Rosarak]

at 27:16 in question 2 I didn't get the answer D? so how to create new vlans in a layer3 switch in general?

[@m.g.matthewshin4210]

6:10 The screen shows that the Wireshark grouped 802.1Q Tag from after TPID to the next Type/Length field, but really? Is there different conecption about which EtherType among the two to include in the grouping of 802.1Q Tag?

[@andybalding3573]

Hi Jeremy, I also wanted to mention on the Packet Tracer. When you enter sh ip route, i do not see the 'L' local route. All i see is 'C' the networks.

[@JeremysITLab]

Yeah that's a packet tracer problem, I mention it in the next video (day 18 lab)

[@singh_ispooja]

Your teaching method is just amazing❤. I have huge respect for you Jeremy💫!!

[@networkingandcybersecurity1928]

Thank you very much MrJeremy. Those videos are well explanatory. Pls can you upload CCNA security too? If you can I will be grateful. Thanks Mr Jeremy 👍

[@JeremysITLab]

CCNA Security is a retired certification! Now there is only one 'CCNA'.

[@jaygarcia8453]

Thank You Jeremy, I enjoy your training videos, I learned a lot .

[@JeremysITLab]

Thanks, Jay :)

[@tariqsubhan3775]

Sir, you deserve more but I can't do more than a comment, share and subscribe! I mean it...

[@geeksquad5255]

@21:00 when access port and SVIs are assigned for the Vlan , so should it be assumed that access port (refers to Switch layer 2) and SVIs (refer to Switch Layer 3) and not the similar types of switches?

[@JeremysITLab]

An access port is a physical layer 2 port on a switch. An SVI is a logical (virtual) layer 3 interface inside of the switch software. For example, if you look at the network at 22:46, SW2 has... -one trunk port (G0/0), which is a physical layer 2 interface -three access ports (G0/2,G0/3 in VLAN10, G1/0 in VLAN20), which are physical layer 2 interfaces -one routed port (G0/1), which is a physical layer 3 interface -three SVIs (VLAN10, VLAN20, VLAN30), which are virtual layer 3 interfaces inside the switch

[@skaterbox]

Thanks for the video Jeremy! Sorry but I have 3 questions I am unsure of 1. How do we set the native vlan to an 'unused' vlan on a Router? From the video, it seems we must assign an ip address for assigning a native vlan. Does this mean we need to dedicate and waste an ip-address and subnet that would be assigned to this 'unused vlan'. And how would assigning this ip address affect packet flow along the switch-router trunk? Would all untagged frames be interpreted as destined for this 'unused' subnet? 2. At 14:54 , you mentioned if SW2 does not have the dest mac in it's mac address table, it would flood the frame out of all access & trunk ports with VLAN 10. But shouldn't this be the case for switching not routing? Following what I understand of routing from the previous vids, wouldn't SW2 need to check its arp cache/table and ARP out all VLAN 10 ports if its not present? Before it checks it's route table and does route selection? 3. How would routes in a layer 3 switch SW2 go? Because wouldn't this mean that the same subnet/vlan is connected on 3 different interfaces it has? Would it send the frame out of all it's ports because it is unsure which port/interface the exact end host is? Since the end host could at the end of all 3 of its vlan 10 interfaces

[@ernestibrahim7532]

I am so grateful Mr Jeremy

[@JeremysITLab]

Thanks for watching :)

[@kurokubushi]

Still using your content in 2023! You're videos are awesome and like them a lot!

[@peraruor]

Hi Jeremmy! Trying to set a home lab and need advice on the cisco models I should get, a switch (802.1Q) and a router in order to be able to practice. Of course I don't need the latest model devices, so which ones will you recommend me to buy? Thanks.

[@ranjanadissanayaka5390]

yess...one more topic covered. Thanks Jeremy.😀

[@4EntertainmentOnly]

I also did all your previous labs with Gigabit interfaces because it's 1000 speeds versus the 100

[@NetworkingwithHamza]

I started CCNA preparation. Came to this point in regular 18 days but then I just couldn't continue. After 25 days of struggle. I re started it, I revised and re listened to all the videos till this point in 4 days. I bought Boson Ex Sim yesterday and I'm hoping to keep the pace to take exam in start of April Max. Let's see where it takes me

[@ui.steven]

Can we connectm? Hamza....i need a study buddy

[@manikandanrajkumar6695]

@@ui.steven hey man, I'm too preparing would you like to join?

[@Bowled.]

@@manikandanrajkumar6695 bro tamil?

[@manikandanrajkumar6695]

@@Bowled. yeah bro

[@Bowled.]

@@manikandanrajkumar6695 CCNA completed ah bro?

[@09alexandr]

Hello Jeremy! Thank you for so great lessons! I have one question. If it would be a real topology, how should we configure SW1 G0/1 and G0/2 interfaces in case when vlan 10 is configured like native vlan on devices?

[@JeremysITLab]

Good question! You don't have to do any different configurations. The native VLAN only applies to trunk ports, it is the VLAN that isn't tagged with a VLAN ID over the trunk. However, G0/1 and G0/2 on SW1 are access ports. Traffic sent/received on access ports is never tagged with a VLAN ID. Because access ports only belong to a single VLAN, there is no need to tag traffic with the VLAN ID to know which VLAN it belongs to.

[@GhGh-xc9lp]

The best series ever!!!

[@JeremysITLab]

Than you!

[@GhGh-xc9lp]

@@JeremysITLab we thank you for your time and for the good work you are doing

[@maircosta422]

when u configure the native on the routers physical int g0/0, why do you use that specific ip address?

[@manikandanrajkumar6695]

that's the ip address which is not in any of the subnets in vlan 10, 20 and 30. So that if the router receives a request for that address it will forward it to the default route.

[@Amiri-Nofel]

Q: How does the SVI table know what type of encapsulation to use when forwarding VLAN traffic? (dot1q or SLI)? since you did not configure it Jeremey.

[@-b777ljq3]

very very very good, thanks Jeremy for the great job

[@weedlax6938]

Can the multilayer switch be connected directly to the cloud without having the router at all? 15:45

[@JeremysITLab]

You can, but usually you'll be doing something like NAT (which multilayer switches don't typically support) on the device connected to the Internet, so it's usually a router or a firewall. NAT's coming later in the course

[@tinashemadangure8140]

Great material never new the command or used it R1(config)# default interface g0/0 😅to set to default configuration

[@kelecortez5834]

Aloha J & another great vid. !!! Im still undecided on ExSim or Alpha Prep recommended by neil ......his is $45 .....just might have to get both

[@JeremysITLab]

Mahalo! If you can, both is definitely the best! I tried both when studying for my CCNA, and in my opinion Boson is a much better product which is why I feel confident about promoting them in all of my videos. AlphaPrep is still good, but if you can only get one I recommend Boson.

[@jawherhadjsghaier1187]

the best course you can find ever .thank you very much . is there any other couses for other certifications like ccnp or any other security certification ??

[@JeremysITLab]

I don't know! This is my only course

[@gerryvalenzuela9158]

Hi Jeremy! Do you have to create the Vlan in a Distribution Switch ? I’m talking about when you have a different design hierarchy like access switches= distribution switches= core switches.... I know you do have to create the SVIs in the distribution Switch for intervlan routing to the Access switches but basically that is my question. Do you have to create the Vlan in distribution switch just like you have to do on access switches ? I’m talking about this command for an example. Switch# config t Switch# vlan 10 Switch(config-vlan)# name Engineering Switch(config-vlan)#end

[@JeremysITLab]

Yes, you have to make sure the VLAN exists on the switch! Always check with 'show vlan brief' to see which VLANs exist on the switch.

[@parker73724]

This might be explained later but is there any way to use multiple trunk ports between a router and switch to load balance the traffic between them?

[@hawkarkhalil6472]

Thank you so much Jeremy for your amazing work!! Would it be possible to share this courses slides with us? I would like to have them to review after watching the videos. Thank you

[@JeremysITLab]

Hi Hawkar, I currently don't provide the slides, but I will prepare them and share them later.

[@hawkarkhalil6472]

@@JeremysITLab Thanks Jeremy. Do you know when you can share them?

[@risikesy5243]

Hi jimmy thank you for your videos which are very helpful.. could you tell me how many more videos will tak to complete course...

[@JeremysITLab]

I guess there will be about 50 days in total.

[@SincereDoper]

For quiz question 3, if you were on a default switch interface and you just typed "no switchport" would that configure it to be a routed port? I thought earlier in the video you said you needed to use "ip routing" for SVI to work. Kind of a confusing question, as both answers A and C are technically correct unless I'm missing something. Would love a quick explanation at what I'm not understanding if anyone knows. Thanks!

[@JeremysITLab]

The 'ip routing' command enables IP routing on the switch - it allows the switch to forward packets between networks like a router. It doesn't make any interface become a routed port. 'no switchport' converts a layer 2 switch port into a routed port, that functions like a router's interface.

[@adjaoudboudjema]

Merci pour la vidéo et les explications, please what's the difference between IP routing and the command sdm prefer lanbase?

[@pooyanlali7961]

Thank you for these great videos! I just have a question, if VTP is not being used in modern networks, then how do we configure VLANs on all switches in large-scale networks?

[@youssefzero]

Hello Jeremy, first I would like to thank you for the great effort that you put in your videos. but still have a question regarding VLAN, if the access ports are "untagged" ports, does this mean that it will not have 802.1q tag? so how the switch will broadcast a frame ONLY to access ports having the same VLANs (and not ALL ports)?!

[@JeremysITLab]

Good question, and important to understand! Yes, 802.1q (or ISL) tags are only used on trunk connections. They are used to tell other switches 'this frame sent I sent belongs to VLAN X'. However, the switch already knows which VLAN all of its access ports are in. If interface F0/1 is in VLAN 22 and the switch receives a broadcast frame on F0/1, it will only broadcast it to ports in VLAN 22 (and trunks that permit VLAN 22, in which case it will tag the frame so the other switch knows it is in VLAN 22) because it knows 'F0/1 is in VLAN 22'. There's no need for the device that sent the broadcast (for example a PC connected to F0/1) to tag it in VLAN 22. Actually, the PCs in VLAN 22, or any other VLAN, are totally unaware of what VLAN they are in. Only the switches think about that.

[@youssefzero]

@@JeremysITLab thank you so much for the explanation!

[@abdelrahmanelsherbiny8833]

Hi Jeremy, thank you for the video, I have a question though If layer 3 switch does all these functions, then what is the difference between it and a router? thanks,

[@JeremysITLab]

Good question! A Layer 3 switch can perform basic routing, but routers are capable of more advanced functions, some of which I will talk about later in the course.

[@abdelrahmanelsherbiny8833]

@@JeremysITLab Thank you for the quick reply :)

[@sk-teck2751]

@@JeremysITLab As we learned, routers connect WAN(s), layer 3 switch doesn't have that feature and it will be used for inter-vlan routing only. Am I right?

[@diwaskhadka1534]

I would like to know about the advantages of using native VLAN on ROAS in an organization or office network.

[@GG-xt7mq]

If we are already using a multilayer switch, why did we use a router to connect to the cloud, can we directly connect to cloud from multilayer switch ?

[@JeremysITLab]

Multilayer switches typically don't support features like NAT, which is usually needed to access the internet. NAT is covered later in the course!

[@HemanthJabalpuri]

I also got this question. Aside Jeremy's answer, Multilayer switch doesn't support interfaces other than Ethernet. In Lab, video Jeremy showed connection using Fiber WAN connection via SFP port which is not supported by Multilayer Switch. If we have Serial WAN, same issue (no serial interface in Multilayer switch).

[@Amiri-Nofel]

Q: what if the Layer 3 Switch has one trunk port that allows all VLANS, in that case, would the SVI for VLAN40 be in the up/up state if you create VLAN 40 on the switch and satisfy all other conditions (1 through 4)?

[@rolan2dr]

Awesome. Thank you for the content.

[@JeremysITLab]

Thanks Rolando!

[@_Akbaralam]

VLAN has really took my time....

[@teerath1000]

In layer -3 switch , after configuring SVI for VLANs , do we have also to define which ports of layer-3 switch will be part of which VLAN ? Or SVI will be active on all un-routed switch ports and based on senders subnetted IP address , the receiving port of layer-3 switch will assign VLAN ID. Thanks

[@chandankumarsingh6027]

I will join membership soon.I am expecting same series of video for Firewall.

[@JeremysITLab]

Thank you, I might cover firewalls someday.

[@bb1234697]

Thank you very much Jeremy!! You are the GOAT!! 🐐🐐👑👑👑

[@zakariabouguenara3728]

The best ever thanks a million

[@johnwilliam2381]

Thanks Jeremy for the update.

[@JeremysITLab]

Thanks John :)

[@jasonmedina8625]

Jeremy I am immensely enjoying your videos, but I'm concerned that I might have missed one or two of the labs or Anki links. is there a central location for these to make finding them easier? Thanks.

[@JeremysITLab]

Here's the Google Drive folder: drive.google.com/drive/folders/1kQVMEUDN0byK39rceEXyb6bQcGu4dIJA?usp=sharing

[@Nicole-Paganini]

Question: Regarding to Delete the subinterfaces, what will happen if use command " no interface range g0/0.10-30" ?, will delete all subinterfaces from .10 to 30( .11-29) 31 subinterfaces of them?

[@shashidharnagraj896]

At 13:11, from SW2 to R1, why is it tagged in vlan20, shouldn't it be vlan10?

[@HemanthJabalpuri]

Since source PC is in Vlan 20.