Free CCNA | QoS (Part 1) | Day 46 | CCNA 200-301 Complete Course

[@mthoko]

When Jeremy says, "Let me illustrate it for you", you just know he's about to cook.

[@JeremysITLab]

Haha!

[@donnyrap]

Haha so you know that's when things get serious 🤣

[@user12_831]

Today I passed the CCNA exam. Thank you Jeremy, you are awsome

[@JeremysITLab]

Congrats Alexander! :)

[@ianp6742]

Congratulations Alexander! Did you use Jeremy's course alone or did you use other courses too?

[@Ad000121]

Congratulations , what resources did you use

[@robotname438]

0:00 - Intro & Things we'll cover 2:09 - IP Phones 2:09 - IP phones 4:52 - IP phones / Voice VLAN Configuration 7:06 - New way to connect PCs and IP phones to the switch (I did my best naming this section) 7:36 - POE 7:36 - POE 9:11 - Power policing 11:23 - Power policing configuration 12:23 - POE standards 14:14 - PC power 14:33 - QOS 14:33 - Converged networks 16:40 - Network characteristics that QOS helps manage 19:30 - Queuing 19:30 - Queuing & tail drop 20:45 - TCP global synchronization 22:39 - RED & WRED 24:00 - Things we covered 25:17-QUIZ 25:21 - question#1 26:22 - question#2 27:06 - question#3 27:40 - question#4 28:28 - question#5 29:08 - question from Boson 31:20 - JCNP -Level Channel Members

[@lukedimirack4376]

Just took my CCNA and passed with a 950! Thanks for the free content.

[@JeremysITLab]

Awesome, congrats Luke!

[@tenzinrabten7018]

Can u tell me the resources u used?

[@lukedimirack4376]

@@tenzinrabten7018 I watched this whole series, but because it isn’t over with I filled in the remaining topics with cbtnuggets... I just used the free 7 day trial and watched everything I needed. I also googled free practice ccna exams and took all the free ones I could get my hands on.

[@charlesyaw6514]

@@tenzinrabten7018 smart move right there

[@tenzinrabten7018]

@@lukedimirack4376 alright brother. Didn't know cbt nuggets had a free window. Will use that for sure. Coz I watch them after I watch Jeremy's video.

[@majiddehbi9186]

Great near to the end. Its great we are near after almost two years i m so glad to witness all your great efforts sir keep going and GOd bless u

[@JeremysITLab]

Thank you Majid!

[@mazenlatif6722]

@@JeremysITLab Hey Jermy, I wondered if you could help me with this question: Which configuration ensures that the switch is always the root for VLAN 750? A. Switch(config)#spanning-tree vlan 750 priority 38418607 B. Switch(config)#spanning-tree vlan 750 priority 0 C. Switch(config)#spanning-tree vlan 750 root primary D. Switch(config)#spanning-tree vlan 750 priority 614440

[@eforever27]

You are probably the best CCNA instructor on youtube! Thank you.

[@petephelp971]

It's tough Kevin Wallace and Keith Barker is up there too.

[@BCool11717]

Facts, i tried Kevin Wallace, he didnt really do it for me. I only got but so far. Keith Barker tho, he’s really good. I go to him if i ever need more explanation about something Jeremy shows us. Jeremy is my core study instructor tho, his orchestration seems so perfect, everything just falls into place for me

[@stephenhu118]

Surely the best! One of the nice parts of Jeremy's videos is that he doesn't show his face through the courses 😀 (Although he's also handsome 😁) It would be otherwise distractive as I found in most of the others' videos.

[@cliffordsnouck9395]

Thank you Jeremy for the tireless hours you put into creating the content and for being such a fantastic teacher! Give that man a bells!

[@DeepakSharma-vj3ef]

Hi Jeremy, Thanks a lot for such a knowledgeable content. I cleared CCNA in the previous week and i followed all of your videos which helps me a lot. So, thanks again and I recommend all CCNA aspirants to go through all of your videos.

[@JeremysITLab]

Hi Deepak, congrats on getting the CCNA! So glad to hear that. Thanks for recommending my course :)

[@alexeyiah89]

Hi Jeremy, passed my CCNA exam today, i want to say thanks so much for the videos it really helped for sure!

[@JeremysITLab]

Awesome! Congrats on the pass :)

[@abdihalim7788]

What other resources did u use apart from jeremy

[@alexeyiah89]

David Bombal udemy and boson exams

[@himinameisgeorge]

Thanks Jeremy. I just passed the CCNA!! I am eternally grateful.

[@JeremysITLab]

Awesome! Congrats George! So glad to hear that :)

[@Ad000121]

Congrats, what resources did you use ?

[@himinameisgeorge]

@@Ad000121 I got the 2 Wendell Odom books , Neil Andersen's CCNA gold boot camp, Jeremy's IT lab, boson ex sim

[@Ad000121]

Im using Jeremy IT course & Neil Anderson CCNA course on Udemy + practice exams . I think this should be enough to pass the CCNA

[@Idea3655.]

@@himinameisgeorge please can you give me exsim if u pass ccna

[@IbrahimInsomniac]

I just took my CCNA today, and I passed. thank you so much I couldn't do it without this course. thank you so much

[@JeremysITLab]

Congrats, that's awesome! So glad to hear that :)

[@NetworkingwithHamza]

Very intersting. I love to put all the pieces together to understand the concept. QoS is so intersting. It reminded me of my Psychometrics teacher. He used to start with one thing, then discuss another aspect, then another, and at the end he converges all and shows how concpets are interrelated. Loved this video.

[@christianmonga1940]

Thank you Jeremy for all the videos. I'm still waiting for wireless

[@dcr630]

I’ve been really struggling with QOS and I feel more comfortable and more knowledgeable after watching your video. Thanks 🙏

[@TarpahAbamukongLewis]

Thanks a million times Jeremy MC-D. You are the President of CCNA for past present and future!! There's no second!!!

[@tultrandri7337]

Yesterday I reviewed QoS from OCG book and I'm wondering when Jeremy release QoS's video. I wake up this morning and youtube notified me that Jeremy's QoS video is there, so happy. Thank you Jeremy, GBU.

[@JeremysITLab]

Good timing! :)

[@dhanushm.s9608]

Thanks Jeremy. From morning I was waiting for for this video.

[@JeremysITLab]

Thanks ;)

[@tg9460]

I can't thank you enough sir. Your videos are simply awesome. Well paced.

[@JeremysITLab]

Thank you :)

[@jameschua9255]

I've been waiting for your QoS video, tk god it's now ready! I find this topic very messy, hard to appreciate and to apply (thru my other paid online course). But your trg video is always systematic and clear. Hence, I've supported you on Teachable.

[@JeremysITLab]

Thanks James! I appreciate the support

[@mosasa1307]

Duuuuuude me and you! I swear its always the QOS and IPSec topics that are a mess in EVERY RESOURCE I COULD FIND. Especially because they always say you don't need to know the configuration. Umm... how am I going to learn than? lol?

[@cesarbrenner5146]

Jeremy , what a such great guy. You are so smart . I do imagine you have an elephant's memory. With all the respect that you deserve. Do not forget FRAME RELAY

[@jhde9067]

A quick comment on stuff not included in the CCNA website. I heard people say that they don't include everything that'll come during the exam. So it's still a good idea to dive a little deeper when you think it might be needed.

[@mdshakeelahmad9512]

hello jeremy i have to say with great pleasure that i am getting to learn a lot from your channel as i am doing MBA IT thank you very much for making such videos

[@JeremysITLab]

Thanks for watching :)

[@mdshakeelahmad9512]

@@JeremysITLab It's my to have a part of your channel

[@dysaniac3807]

Thanks Jeremy. Was waiting for this video, with this topic, section 4 will finally end... Again, thanks a lot....

[@JeremysITLab]

Thank you :)

[@Alex-eq7uh]

Dear Jeremy ,sir, thank you so much for these videos, you are a life saver, wish you tons of success coz you totally deserve it! The quality of your course is outstanding!

[@abdihalim7788]

Your videos are treasure you made me feel confidence of myself which i never had with my lecturer for 6 months , i can now configure everything with your help , Am sitting for my exam after one week , and you highly promote boson exsim however am financially okay to purchase those materials, what else can u help me or recommend ?? Please am not good with theory questions but am fine with labs thanks again

[@mulubrhand.2977]

Thank you so much, Jeremy. Always eagerly waiting for your videos.

[@JeremysITLab]

Thanks for watching :)

[@kaydekrupski2984]

About to attempt my ccna in a week or two been waiting for the QoS videos :)

[@JeremysITLab]

Good luck on the exam!

[@Kisnowar]

Oww boy it's almost time to learn ccna from your videos only.

[@JeremysITLab]

Thanks, but I recommend using other resources too!

[@valterpereiracjr]

Nicely done, @jeremy. Thank you for the amazing content!

[@leustad]

Jeremy Sir, these are AWESOME videos, thank you very much. Also I know that you are busy as hell but I require more !! I finally caught up :)

[@bilalbenn695]

u r the man jeremy ,keep up the good work

[@JeremysITLab]

Thanks Bilal!

[@VeryBigBang13]

Yes ! Time for some learning. Thank you Jeremy !

[@JeremysITLab]

Thanks for watching :)

[@tokosamniashvili5735]

Great, Great, Great - It's your time boss!!

[@JeremysITLab]

Thank you!

[@ashwanthbalajir5153]

I am not preparing for CCNA but still this Playlist adding value to my skills

[@KiruthighaV]

Learnt new vocabulary 'unison' too..... Thanks Jeremy ❤

[@charlesyaw6514]

Jeremy you doing a great job.

[@JeremysITLab]

Thanks Charles :)

[@nicholassattaur9964]

Thanks very much Jeremy for the awesome video! Keep up the good work

[@JeremysITLab]

Thank you :)

[@ninosodicho382]

Thank you so much for these videos, sir!

[@keithjustice3310]

In the new videos something you could address and the first thing that popped into my mind around 6:19 was the question, "Since CDP is a security risk and normally disabled, how does the Phone know to tag the voice traffic." In many instances I feel it will be disabled and would love some more clarification on how to address this.

[@sonymwema7929]

Many thanks for your time and for your very enriching videos, I am still waiting for the wireless and automation part. I keep recommending your videos to my friends

[@JeremysITLab]

Thanks for recommending the videos :)

[@tenzinrabten7018]

How much more Jeremy?? My head will burst with all this information.

[@JeremysITLab]

You can check how much more there is here! jeremysitlab.com/ccna-course-progress

[@Developer-ql3zo]

Thanks Jeremy 😊

[@JeremysITLab]

Thanks for watching :)

[@romannjoroge5056]

Thank you for the awesome lesson

[@Z3kyTw0]

Awesome series bro!

[@JeremysITLab]

Thanks!

[@abovethehorizon2023]

Thanks for these videos. Waiting to be completed soon.

[@JeremysITLab]

Thank you!

[@Ad000121]

Thanks for all your hard work . How many videos left until you've finished the course

[@JeremysITLab]

I'm not sure how many are left

[@HambaAbdisa]

Thank you for your time and great explanation

[@terencepillay3670]

Thank you so much for these videos! The way concepts are explained really helps alot! Will you be doing a section mash up video of some sorts? and perhaps a security mash up video as well (although this may need to be broken down into parts)?

[@JeremysITLab]

I wasn't planning to do anything like that, but good idea!

[@terencepillay3670]

@@JeremysITLab sorry i meant section 6 mash up video, my apologies!! really again, thank you very much!. I am going to write my ccna exam in about 3 weeks and your videos help tremendously in preparation! Lastly, I know this is a long shot but do you/ will you have similar videos for the CCNP enterprise 350-401 course? :)

[@ditakebede9532]

It is Very Good course continue it.

[@JeremysITLab]

Thank you :)

[@JamesWebb2021]

11:25 The interface in the output show power online police g0/0 must be Gi0/0 instead of Gi2/1

[@MHALAPOW]

Thanks Jeremy

[@GoryionB]

You say that PoE isn't a topic, but I know that Boson has questions about it in the current practice exams... so, better to know it. Thanks!

[@JeremysITLab]

I can't say for sure if it's on the real CCNA, but it might be! The exam topics aren't totally set in stone.

[@SportsVally]

Thank you very much for this video sir...

[@JeremysITLab]

Thanks for watching :)

[@matthewsasu7682]

Thanks for another great video

[@JeremysITLab]

Thanks for watching :)

[@notunknown8275]

thank you so much .

[@ahmedlateef5244]

Thank you so much Sir.

[@JeremysITLab]

Thanks for watching :)

[@Michael-yl9rl]

I'm starting to feel like I'm ready for the CCNA exam....hehe

[@JeremysITLab]

Nice! Still many topics left in my course, though ;)

[@TheOnmils]

@@JeremysITLab How many days do you reckon your course will have? (aproximative)

[@Martin_JY]

Thanks Jeremy!

[@OnBitTechnology]

First view thanks mr jeremy

[@JeremysITLab]

Thank you :)

[@kgotsomoikabi961]

Best videos ever , do you have ccnp videos as well

[@JeremysITLab]

No CCNP videos yet, but they are coming soon ;)

[@kgotsomoikabi961]

@@JeremysITLab thanks for responding , how do we support your work is the any subscription fee how do we assist keep you going , personally i think you deserve it

[@AymanSattar]

@@kgotsomoikabi961 there is a donation button on the videos

[@RahulKumar-pe9ip]

Can you please upload whole lecture videos. These videos are very useful. I'm preparing for ccna and have to pass within 1 month. Please upload all videos..🙏🙏🙏🙏

[@JeremysITLab]

I don’t have all of the videos. I will upload the videos after I make them.

[@stephenapenkwah]

Thanks jeremy

[@JeremysITLab]

Thanks Stephen!

[@liamtingle2762]

Does this help anyone? .... QoS Traffic Shaping ... The benefits are: 1. Congestion Avoidance 2. Improved User Experience 3. Flexibility in Configuration ...controls flow using: 'RATE LIMITING' and 'SCHEDULING - like WFQ algorithm (weighted fair queue) + 'ASSIGNING PRIORITIES' to 'CLASSIFIED' traffic. ...uses 'BUFFER POLICIES', high priority = access to buffers, low priority = queue longer or dropped under heavy link loads. ...'POLICING' - Polices traffic entering + exiting queues, sets quantity limits + drops or marks a lower priority, preventing network congestion.

[@mohamedoueslati4822]

Hi Jeremy, thank you for the help, please i would like to know if there are a subtitles in your videos on Teachble, thank you,

[@JeremysITLab]

Yes, there are! I download the subtitles from KZbin and put them on Teachable, so if a video has subtitles on KZbin, it has subtitles on Teachable. That includes the videos that haven't been released on KZbin, to.

[@mohamedoueslati4822]

@@JeremysITLab Thank you it's Great ! other question if you permit, in which topic are teachable ccna course now ? it's covering wireless and automation programmability ? tank you,

[@mohamedoueslati4822]

​@@JeremysITLab Ok Thank you,

[@mohamedoueslati4822]

@@JeremysITLab so it's +4 videos on teachable then KZbin,

[@mohamedoueslati4822]

@@JeremysITLab i'm talking about only courses videos, it's related, so +4 courses videos,

[@Leafycoke]

Its no wonder my 3560s sound so loud. They have an AC/DC rectifier for PoE!

[@deepbaban6864]

Thanks Jeremy for all these awesome videos. I just want to ask you how can I become network engineer.Can you suggest me the path to network engineer.

[@berkecanguler204]

Which day will the Complete CCNA course ends?

[@MichaelFlenderson]

Thank you!

[@SirPeterlll]

The networking theory I like, however I dont like/want to learning Ciscos command line interface commands or its tool. How hard will ccna be if I dismiss learning the cli stuff?

[@JeremysITLab]

You won't be able to pass the CCNA if you don't learn the CLI.

[@mickben9318]

Help with my cisco class Thanks

[@AbdulwahabYahia-e3e]

If you feel like you don't understand, don't rush into playing that part again. Just wait until he says "Let me illustrate it for you"

[@kayitbilgileri]

Thank you very much for your great videos! Can you please explain what is an Uplink and what is a Downlink? I hear it so frequently, and i still haven't figured it out what exactly it is. Thank you!

[@mrgraphic7175]

Hi Jeremy, first of all thank you for everything!! One question about PoE: for Ethernet and Fast Ethernet we are using pins 1,2,3 and 6 for data and 4,5,7 and 8 for powering up the device. How the SW handles with 1Gb+ when we need all 8 wires for data? Does it still use the same 4,5,7 and 8 wires for powering up? How can data be splited over electricity?? Thank uou and I don't know if it is a dump question..Thank you, sir!!! And, sorry for my english...

[@JeremysITLab]

You're correct about Ethernet and Fast Ethernet. For Gig ethernet and above, the same wires are used for data and electricity at the same time. Electricity and data transmissions use different frequencies, so they don't interfere with each other.

[@-b777ljq3]

very good

[@MariaGomez-lg2ug]

master a question when a network administrator monitors the bandwidth traffic is that of the interface that is, the speed of the nic or internet I have always had that doubt because I have been following its course from the beginning and I hear a lot of bandwidth from the interface is that traffic that an engineer truly monitors oh the service hired by an isp that I imagine also uses the terminology bandwidth and mbps I'm confused with that, what traffic is a network engineer monitoring

[@JeremysITLab]

The bandwidth of the interface means the interface, not the Internet (which is external, someone else's network).

[@comraede]

Great content, as usual! Question though, wouldn't the PC-to-IP_phone-to-switch cable setup create a bottleneck? I don't think it's common for IP phone ports to support equal or better speeds than (desktop) PCs?

[@myleslivingston6568]

most end users aren't fully saturating the their network connections thus no concerns for a bottleneck. If you have video editors, engineers or other users that are constantly relying on network storage for large files you would want to wire them in into the switch directly if the infrastructure supports the speed they need.

[@comraede]

@@myleslivingston6568 Right, that makes a lot of sense. Thanks for the clarification

[@Supahkaze]

This might be the one topic that I chose to not learn trying to remember qos specifically is so stressful

[@otabektillavayev3309]

Thanks million

[@nachoskater44]

wait i was taught 802.3at is about 25.5 watts on network+... if anyone else is confused on that, apparently the PSE gives 30 watts but the PD only receives 25.5 watts due to degradation over ethernet

[@montassiir]

thank you sir

[@carlosenriquelopezperez7269]

Hi, Dear Jeremy, sorry for this question, i know you do your best to make this videos, i just wanna ask u, when do u think the course will be complete? i hope you're good!!

[@JeremysITLab]

Hi Carlos, I think it will be finished in a few months.

[@Crazedmage]

Just curious, if policing is not enabled on a switch, what would be the command to enable that?

[@azaruddinbhad4305]

Sir I have one question... I'm from india, My friend who cleared CCNA 200-301 in December 2020 and he told me that Cisco gives 3 hours or 180 minutes for CCNA 200-301... And I also watched your 10 months ago video in that you mentioned that Cisco gives only 2 hours for CCNA 200-301... and I also read Cisco guide lines about CCNA 200-301, in that Cisco mentioned 2 hours for Exam... I'm little bit confused... Can you explain it, if you have any idea

[@JeremysITLab]

It's 2 hours, but I think you can get a 30-minute extension if English isn't your native language.

[@azaruddinbhad4305]

@@JeremysITLab yes...maybe....but big advantage for me... Thank you sir

[@MohamedAhmed-fq6yy]

sir when this course will be uploaded completely because i am trying to finish is within a timeline. thanks : )

[@baileygamble3530]

At 5:56 where it says in the top right "...Sw1 will use CDP to tell PH1 to tag PH1's traffic in vlan11." How does CDP accomplish knowing which device gets which Vlan and if it's simply because it's named "voice" so it goes to the phone I must have slept through that information lol.

[@baileygamble3530]

I want to say I got the first question correct and now I'm more confused

[@notunknown8275]

i have a question ... if tails drop occurs for 1 TCP host packet , all other other TCP hosts will slow down or just that host

[@JeremysITLab]

If a packet a host sends is dropped, it will reduce its window size, but that won't cause other hosts to reduce their window sizes.

[@arsenmkrtchyan4832]

Why unspecified vlan is untagged. Isn't it tagged with vlan1 by default ? Untagged vlan is native vlan, isn't it?

[@JeremysITLab]

Hi, what time in the video are you asking about?

[@arsenmkrtchyan4832]

@@JeremysITLab Hi, 05:27

[@arsenmkrtchyan4832]

@@JeremysITLab My bad, I meant voice vlan

[@AnkitKumar-j4t1c]

could you please tell me the reason why it is not considered as a trunk port for sw1? I might have missed something could any explain me this?

[@JeremysITLab]

Its configured mode is "switchport mode access"

[@CrazyEddieization]

Has anyone been asked about the IEEE document numbers on the CCNA? I am trying to decide whether it is worth it to memorize all of the document numbers (802.3u, 802.1q, 802.1, 802.3af etc.) since it's not very practical outside of an exam environment. I have obviously memorized the easy ones like 802.1q, but I am unsure about the others. Thanks!

[@JeremysITLab]

You probably don't have to worry about memorizing them. Cisco exam questions tend to be more advanced than simple trivia like IEEE standard numbers.

[@Idea3655.]

hello sir this lecture isn't available to use subtitle

[@JeremysITLab]

Fixed!

[@Idea3655.]

@@JeremysITLab thank you so much sir

[@yannickkameni7802]

How to download the lab please

[@afkar_zz1680]

Sir will ppp and bgp questions come to ccna exams??? Sir do we need to study the please help

[@JeremysITLab]

They're not on the exam topics list. I'm not sure if they'll be on the exam.

[@AbdulHamid-gp3ps]

Thx

[@tomatordia8448]

Grate

[@stardustmotion]

now making your own electricity isnt a ccna topic but let me show you anyway in case it show up in ccna

[@Geoffboyardee]

Not Jeremy leaving out poopgirl 😭

[@JeremysITLab]

You caught me! 😂

[@glitched_bg3344]

22:38

[@pieleanumihai928]

👌

[@countertop5952]

3:50 sorry but i have to disagree. That setup is not better. By todays standards it is terrible. Now if the phone stops working, the pc stops working. You have succesfully introduced a very fragile point in the network that is reliant on POE to work. Maybe in the ole days when nobody cared about redundancy in an office, and IT should just be as cheap as possible, and you needed the phone to be able to work anyways. But in modern days this is a terrible setup. Most people are much more reliant on their computers, and use cell phones instead with apps for central boards. Never do a setup like that unless the customer has 0 budget.

[@JeremysITLab]

As with everything, the answer is 'it depends'. There are plenty of cases where the setup shown in this video is preferred.

[@countertop5952]

@@JeremysITLab yes, there is, and all those cases are because of money or budget. I challenge you to name one instance where this would be a preferred solution from a technical standpoint, outside of money/time saved. I know that in the real world money/budget is usually the main drive for anything (sadly). I worked in a small MSP for years, so you can trust me on that, but i strongly disagree on using the words «better solution» in those cases. It is cheaper, not better, and will cause issues that you are gonna be held responsible for 😂.

[@EvelineCornelia]

Allen Angela Robinson Brian Lewis Matthew