Free CCNA | QoS (Part 2) | Day 47 | CCNA 200-301 Complete Course
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In Day 47 of this free CCNA 200-301 complete course, you will learn about QoS (Quality of Service).
In this FREE and COMPLETE CCNA 200-301 course you will find lecture videos covering all topics in Cisco official exam topics list, end-of-video quizzes to test your knowledge, flashcards to review, and practice labs to get hands-on experience.
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0:00 Introduction
1:06 Things we'll cover
1:42 Classification
3:57 PCP/CoS
7:57 IP ToS byte
9:27 IP Precedence
10:33 DSCP
13:21 DF / EF
14:48 AF
19:45 AF summary chart
20:40 CS
22:04 RFC 4594
23:05 Trust boundaries
25:25 Queuing/Congestion management
31:01 Shaping and Policing
33:32 Things we covered
34:52 Quiz 1
35:28 Quiz 2
36:01 Quiz 3
36:40 Quiz 4
37:33 Quiz 5
38:07 Boson ExSim
#cisco #CCNA - วิทยาศาสตร์และเทคโนโลยี
How many of you guys feel QoS is kind of hard and need to re watch this video many times ? Jeremy did a great job explaining QoS topic but i feel i need to rewatch this great video more times..
Imagine when JSON comes
@@pissedputin7738 puff shot I know man is really hard for me to study all this topic and be ready with in 3 months
It’s not hard it’s just a lot of info
@@artvandelay9131 Not if you love it and have a passion for it. Well, even then maybe sometimes... Hehe. Btw nice name.
very hard
Man CCNA is vast, I can't even imagine how deep CCNP and CCIE will be 🤣
Honestly 🥴
@@atinukebukola8173 Heard that Cisco recently added the new topics ( QOS Network Automation) back in 2020.
Man very vast, I rescheduled my exam date when I recognized that STP started complicating things 😂😂😂
Someone once told me preparing for CCIE will require you to sleep in the server room
@@bassamsalim5274 🤣🤣
Just took the CCNA and passed with a 887! Thank you so much Jeremey because you were a big reason why I passed! Your so in depth with the topics and present everything in a way that makes it easy to comprehend. Keep doing what your doing.
What other resources did u use apart from jeremy thanks
no one replys after passing lol@@abdihalim7788
This is the toughest video on this course. Will definitely watch it again after some time. Still you did a great job to make it simple and understandable.
You are absolutely right, for the first time in this course I feel like that's A LOT of info so I will rewatch it again later
This was a challenging topic and the first time I watched the video I had to just absorb the material. Jeremy is such a great teacher that on the second time I watched it was a lot easier to understand. Thank you for the detailed explanations, Jeremy!
I can't believe I've made it to day 47 of this video. It's really been a pleasure learning. I hope I will pass the CCNA.
I'm on day 47 too :) All the best
Did you pass the exam?
What happened to the result?
I@@AnoopKumar-ve7bf I passed and I''ve been working in tech since passing. :)
@@maharramnajafov2794 Yes, I passed! I passed in 90 days of studying.
Correction: QoS RFC 4594, not 4954.
Jeremy, I can't thank you enough for this course! the most helpful resource! love it.
Thanks, I must have made a typo at some point.
That description of AF should win some kind of award.
Passed today 860!!! Thanks to your videos much appreciated for you sharing your knowledge.
What other resources did you use?
0:00 - Intro & Things we'll cover
1:43 - Classification
3:53 - PCP/CoS
3:53 - PCP/CoS
6:02 - Limitation to using PCP
7:58 - The IP ToS Byte
7:58 - The IP ToS Byte
9:26 - IPP (IP Precedence)
10:33 - RFC 2474 (DSCP)
23:06 - Trust Boundaries
10:33 - RFC 2474 (DSCP)
10:33 - RFC 2474 (DSCP)
12:14 - class-mark
13:22 - DF (Default Forwarding) & EF (Expedited Forwarding)
14:40 - AF (Assured Forwarding)k
20:34 - CS (Class Selector)
22:05 - RFC 4594
23:06 - Trust Boundaries
25:29 - Queuing & Congestion management
27:58 - Weighted Round-Robin & CBWFQ (Class-Based Weighted Fair Queuing)
28:59 - LLQ
31:00 - Shaping & Policing
33:33 - Things we covered
34:49-QUIZ
34:52 - question#1
35:25 - question#2
36:01 - question#3
36:37 - question#4
37:30 - question#5
38:01 - question from Boson
40:32 - JCNP -Level Channel Members
Hi Jeremy, I passed my CCNA exam three days ago. All your content is so helpful to get certified. Thank you so much and Greetings from Costa Rica
Congrats! How was the exam?
What other resources did u use apart from jeremy , thanks
I read the QoS chapter in the CCNA 200-301 book before watching this video. I felt the topics lay-out in the book is very cumbersome. Watching your video has helped me understand the topics in an organized manner. Thank you for your hardwork!
And it happened again. I studied paid cost on U**** but totally 100% couldn't understand the relationship/logic between classification, queuing, congestion avoidance, and how it works etc. But after watching Jeremy's clear explanation with illustration, I understand better now!!!
man... that was a killer amount of knowledge i had to take in... but i must say, it was VERY clear and easy to follow. whenever i get stuck trying to understand what OCG cert guide is talking about, i ALWAYS come to your videos Jeremy. You da man.😃
Studying QoS on book takes you to study 35 pages but Jermey presentation is way easy to catch and understand it well. Keep it up, Outstanding!!!!
It's so impressive how at 26:58, all the pieces that Jeremy put in your mins in the previous slides became one thing an you feel that sensation of clear in your mind. You finally understand at 360° how the QoS is and why it is used. This is magic, this is passion, this is Jeremy.
Thanks to infinity.
Thank you for this videos, though there are too many informations just like OSPF and STP but you made it understandable. You have a very nice teaching knowledge , the best gift ever.
Thank you, I appreciate it :)
First tried watching this video late and I was tired and couldn't pay attention. Couldn't absorb anything because of the depth. I am rewatching it now, slowly, pausing to take notes frequently. Lesson learned: be patient when learning CCNA. It takes time.
this lecture hit me like a train
Priority Code Point (PCP) is a means of classifying and managing network traffic and of providing quality of service (QoS) in modern Layer 2 Ethernet networks. It uses the 3-bit PCP field in the VLAN header for the purpose of packet classification.
This was one of the most difficult topics of all but you explained it in a simplistic way to get this. Thank you Jeremy.
Last year your videos and flashcards helped massively in me getting my CCNA. Even now, if I need to brush up on a topic, Ill bring up your flashcards and videos again!
the way you strategically fragment the concepts and then bring it all back to together and form a full image, top class! i left with a wow experience almost everytime
Thank you Jeremy. High quality education, as always !
I was waiting for this topic video for very long ..I knew that only you can help to understand the topic in depth.. Thank you !
Best teaching content regarding QoS for CCNA that I found. Finally I will get it!
Thank you :)
I probably have to rewatch this one few times :$: $ :$ thank you.
No rush, take your time and maybe consult some other resources if its hard to understand.
@@JeremysITLab thank you but but i understood everything by the second time. You're great on simplifying things out, most of your videos I could get it just by 1 time watching them, but sometimes i tend to stress myself, fearing the unknown 😂 then when I'm calm I rewatch it and I realise that it was my fear of not understanding that it was making things complicated, sorry for bad english. KEEP UP THE GOOD WORK! I LOVE YOUR CONTENT! and also you have a good Personality! I wish you the best on everything.
Awesome as always... My comment is nothing about ccna but what resonated is how well you put up the examples and answered the questions lurking in my brain cells about ISP data offerings and charges, though there are more technicalities in QoS but it strike my non IT tech background curiosity which made the information of this video worth enduring. Also while hunting for Job , most are looking for this QoS knowledge. Hands down clear. Now time to rewatch and possibly watch your CCNP version of QoS ...Thank you again sir, you're the best.
Damn, it will take a while before i will remember all this stuff. Great explanations, but the sheer amount of information is quite challenging to keep in mind and think through.
Many thanks to Jeremy for the hard work.
great video !
thank you for the well-made presentation
it makes things a lot more easier
Very well explained. It is detailed, yet also very clear and simple to absorb. Kudos!.. Greetings from Kenya.🙂
Just love the content and the delivery so much!
Thank you Jeremy for the video! Very informative
Jeremy nothing I can say bro, you’re my hero
Don`t know about you guys but I`m watching this video now for the 3rd time already haha
So much information and details, broooo....That`s nice tho, good stuff ;-)
Thank you, boss. I was patiently waiting for this.
Even me 🙂
Thank you, still following up 🙌👏👏🥳🥳🥳 K.E.
Holy cow that was a lot of information! I think the most out of any video so far.
Whoa just whoa just from rewatching this
Woah this is so fresh, only 2 days old! I thought the course was completed since the first episode was a year ago=) how many more are there?
Thanks again for your help and time in doing this for us =)
I recommend anyone watching this video and having trouble with it to go into a deep dive of QoS to better grasp the concept.
Thanks for you .. this is first time that i understand QoS :)
thank you jeremy for this great effort ,you are the best
information overload!! gotta take some time to digest this topic
Thanks for your great job
May Allah protect you. you are amazing bro. the best one to simplify any topic and how it works.
Thank you Muhaned :)
Thanks Jeremy, 😊🙏
Very Nice Coverage , Very helpful , Thank U
Thank you 🙏
Thanks always J
Hi there Mr Jeremy ,Truly Phenomenal the way this course (CCNA)is explained.After doing weeks of research I came across your channel.I am forever grateful.I was wondering where can I view all the videos since day 1.The reason I am asking is because it seems to be scattered ,unless I am not searching correctly.Many Thanks Kidron from Southern Africa.
Thanks Jeremy...
A small request, if possible, please make your course available on your website android compatible ...
Would be a big help...
the 8x + 2y is awesome. It took a minute for it to sink in
Too much information man, thanks for being with us
That was a lot of information
Thank you Sir.
Thanks 🙏
The best as always
Thanks ❤️❤️
tysm
Jeremy!
thanks
Jeremy, I expected to see Token buckets algorithm. By the way, thanks for the QoS video.
grate 100%
wow.. qos is very dense.
I understand BGP doesn't fall under the CCNA exam. But, In the end, could you please make an in-depth video of BGP as well?? I find it very easy to understand and remember complex topics from your videos. BGP is vast and finding all its topics is hard. Network lessons is a good source but the way you present it in video is more easier to learn and understand. Thank you.
How many more videos are there jeremy ?
Are there even more videos coming ?
Thx sir and GOd bless u for u r time Just one favours if u wanna to Just one lessons to tell us what still to come from the rest of the lessons thx one more time
This is a tough one.
Try googling for some of the concepts that are difficult to grasp!
Small correction for everyone if you see this, Jeremy! The RFC: Configuration Guidelines for DiffServ Service Classes is RFC 4594 4954 as shown in the slide.
First of all thanks for your awesome support for the Queuing Congestion Management you only mentioned two types CBWFQ & LLQ despite another types such CQ,FIFO,PQ,WFQ
Yep, QoS is a deep topic.
@@JeremysITLab Thanks for the respond could you please mention remaining queuing congestion management in next video shortly not go in deep with it I will be grateful for you
as a non-network engineer I propose RFC amendment, the severity levels on PCP and in general syslogs go in opposite directions of each other. wherein syslog severity codes 0 is the most severe level and 7 is debugging severity being the least severe, PCP uses 0 for the least important traffic and 7 for the most important traffic, can we switch one of them around? I'd vote PCP because its a lot more specific of a use case then general logging and everyone is already used to syslog codes being read the way they are and its probably deeply engrained.
Ohh my head hurts......
good
Jeremy,
I saw that you have a CCNP on linkedin
Can you please share how much more work it was to get the CCNP, in addition to just the CCNA? I feel like I am in a flow, and I am considering the CCNP right after obtaining my CCNA.
Thanks!
A lot of infos to take in this videos, I really write everything in the slide show in my notebook so next time I just read them is it a good way ?
Thanks Jeremy
Yeah taking notes is important!
QoS policies allow ISPs to ensure a certain level of service quality for different types of plans(tariff) the customer have applied for
is that right Jeremy. ?
Have you covered VPNs any where?
Information for curious people: 98 minutes to watch this video with understanding and learn Anki flashcards. It's not hard, it just a lot of important information.
Hello jeremy i have a question what Percent are we at in the CCNA ? and thank you for the Awesome Teaching Content
You can check the course progress here: jeremysitlab.com/ccna-course-progress
Question: When we download a game, let's say from Blizzard that the maximum speed we receive is really, really low compared to our actual bandwidth, so is that about policing and shaping?
This is the longest video until the end of the course!
Stay strong! The end is in sight!!
Hi, How much this part is important for the CCNA? and also, what is the maximum grade for the CCNA?
tnx for the answers,
and Jeremy you are by far Number 1~~ Thanks a lot!@#$
Is there any way to have the slide shows that is presented in this video or the entire course?
Hi jeremy's !!
How many videos remaining to finish this course approximately ?
I'm not sure, but you can check the course progress here: jeremysitlab.com/ccna-course-progress
RFC 4594?..Thanks!!
Thanks for video, can stand waiting for VPN course :)
I don't think I'll make a dedicated VPN course, but I will mention VPNs when I make a video about WANs ;)
@@JeremysITLab Pity, because I think that this topic is very virall especially now in the times of covid and remote work ;)
Thank you, Jeremy! Sorry ,is it true that CCNA is divided into four parts; CCNA 1, CCNA 2, CCNA 3, CCNA 4?
The Cisco Networking Academy curriculum is divided into 4 parts, but the CCNA itself is a single exam.
My course isn't divided into 4 parts, it's just one course.
@@JeremysITLab Oh, thank you for the explanation Jeremy.
can more than one packet be sent from the queue if you have an EtherChannel? Hope this isnt a stupid question
Holy shit I love you dad
Is this course valid for the feb 2020 exam when things changed or is this course for prior to feb 2020
I read that the ccna certificate has changed? Could you explain?
this is the latest.....CCNA 200-301.....so you're in good hands 😊
any idea on how much we have covered. ...?? considering the syllabus
I think somewhat 80% is already covered by Jeremy....
Configuring routes is easier... Just type the ? and it gives you all of the answers at your fingertips.
Oh man...this is a long video, and I came here mostly hoping you'd cover the trust boundary...thank you. But, I will say that Boson thinks you need to know the commands to move the trust boundary.
I don't base my videos off of Boson's exams, so I'm sure there will be differences.
Reddit is right this is the hardest topic in CCNA.
Hello Jeremy, do you still recommend buying the official book of CCNA please ? if yes, do you have a link and author ? thank you for your support,
Yes I do! The author is Wendell Odom, do a search for 'ccna 200-301 official cert guide'
@@JeremysITLab Ok thank you,
@@JeremysITLab there is Volume 1 and Volume 2 books, but only volume 1 done by Wendell Odom,
@@mohamedoueslati4822 no both are by Wendell
Hey,
I need to know about WFQ - Weighted Fair Queuing for ccna?
I'm not sure, it's hard to say exactly which points you'll need to know.
hi jeremy and realy thx for all your hard and nice job , you make it so easy and attractive for us,
just for PCP(COS) you mention that PCP(CoS)3 is the CRITICLAL APPs in 05:57 , but i found this in the Official Cerrt Guid Vol2
Page 236 :
■ Classify all voice payload traffic that is used for business purposes as IP DSCP EF and
CoS 5.
■ Classify all video conferencing and other interactive video for business purposes as IP
DSCP AF41 and CoS 4.
■ Classify all business-critical data application traffic as IP DSCP AF21 and CoS 2.
Thank u sir.
Rectif : IEEE P802.1p doc confirm exactly what u said, so please what is the meaning of the: Cert Guid's text.
Is IP SLA in CCNA ? and is it related to QOS?
It's not a CCNA topic, but yes it can be used to verify QoS.