Thank you Jeremy, you are the best lecture in my academic history. I would recognize your voice anywhere in this world except in an ocean of course. But in a cave, mall, theme park, abyss, etc. Before I sleep and before I work I listen to you. On Christmas I was summarizing a Day 59 video. Even the lions and elephants here in South Africa stop chasing around when they hear "Welcome to Jeremy's", they know a bullet might harm them if they want to maintain their ancestral food chain near my hut. Thank you we all appreciate it world wide. Since the 8th working on this? Passion and hard work pay off eventually, you gave back to the world. On a serious sense, before I found you I didn't think this would be fun. You are my HERO man.
Hi Jeremy, Just passed my CCNA 300-201 exam today (My first attempt). I just want to say thank you so much for your effort and dedication for creating this wonderful video. I only rely on this video w/ your guided labs and anki flash card for as my preparation because I have no budget purchasing other paid tutorials. Again, thankyou so much jeremy! I highly recommend this guided tutorials.
7 steps of evolution: 1. Man created MAC layer with its man-unreadable factory-installed MAC addresses 2. Man created IP layer with man-readable logical IP addresses 3. Man called them IPv4 4. Man created IPv6, whose addresses started mimic MAC via EUI-64, so becoming man-unreadable again, and having no network logic 5. Man created SD-Access SDN for effective control 6. SD-Access created underlay, overlay, fabric layer, and routed access layer layers 7. SD-Access removed MAC layer, surrounding itself by routers only with huge port capacity (a.k.a. multi-layer switches) Thanks Jeremy.
Took me 6 months of one hour a day, some two hours, to finally get this point hahah. I should have done a video a day, but sometimes it took me 3 days. Glad I'm here though, now I know how to study better and more efficiently.
@@siddhusas Jeremy's videos along with his packet tracer labs and Anki flashcards. I have used other resources like CBT Nuggets and the official cert guide, but Jeremy's course was by far the easiest for me to learn from. I used the Boson practice exams in study mode once I was almost ready to take the real exam.
@@sean2260 How long and how many hours per day have you studied? I have been studying for about 1 hour a day for the past six months but I still don't feel confident taking the exam.
🎯 Key Takeaways for quick navigation: 00:01 *🌐 Introduction to Software-Defined Networking (SDN)* - SDN centralizes the control plane into a controller application. - SDN controllers use southbound and northbound interfaces for device communication. - Overview of the SDN architecture with application, control, and infrastructure layers. 04:12 *🛠️ Cisco Software-Defined Access (SD-Access) Basics* - Introduction to Cisco SD-Access for automating campus LANs. - Overview of SD-Access architecture with DNA Center as the controller. - Explanation of terms like fabric, underlay, and overlay in SD-Access. 07:24 *🌐 Underlay and Overlay in SD-Access* - Underlay is the physical network providing IP connectivity; overlay is the virtual network. - The fabric combines overlay and underlay in SD-Access. - Switch roles in SD-Access: edge node, border node, and control node. 12:42 *🖥️ DNA Center Overview and Roles* - DNA Center acts as the SDN controller for SD-Access. - DNA Center can also function as a network manager in traditional networks. - Overview of DNA Center features, including REST API, intent-based networking, and policy configuration. 16:54 *📊 DNA Center Management and Functions* - DNA Center features, including network hierarchy, IP management, and DHCP configuration. - Policy configuration in DNA Center, simplifying network behavior intent. - Device inventory and compliance monitoring in DNA Center. 19:14 *🔄 DNA Center vs. Traditional Network Management* - Characteristics of traditional network management, including manual configuration and distributed management. - Advantages of DNA Center-based management, such as centralized control, faster deployments, and reduced manual errors. 20:09 *🖥️ Centralized Management with DNA Center* - Devices are managed and monitored centrally through the DNA Center GUI or REST API. - DNA Center translates administrator's network behavior intentions into device configurations. - Centralized management includes configurations, policies, and software versions. 21:31 *🌐 Summary of SDN, SD-Access, and DNA Center Functions* - Overview of SDN layers: application, control, and infrastructure. - Introduction to Cisco SD-Access with key concepts: underlay, overlay, and fabric. - Functions of Cisco DNA Center as an SDN controller and general network management tool. 21:57 *🧩 Quiz Questions and Key Takeaways* - Recap of covered topics, emphasizing the importance of understanding underlay, overlay, and fabric. - Overview of quiz questions with correct answers explained: - Answer A: Underlay refers to the physical network in SD-Access. - Answer B: Application layer houses scripts interacting with the controller. - Answer B: Optimal SD-Access underlay has all links between switches as layer 3. - Answer D: VXLAN is used to create virtual tunnels in the SD-Access overlay. - Answers A, C, D: Valid switch roles in Cisco SD-Access are Control, Border, and Edge nodes. 24:40 *🎓 Bonus Question from Boson Software’s ExSim* - Transition to a bonus practice question from Boson Software’s ExSim for CCNA. - No specific content mentioned in the provided transcript for this bonus question. Made with HARPA AI
Hello jeremy thx one more time it s just like make a ligh in room after one year of draknes. Thanks to your clear explanations GOd bless sir and By the way have a wonderful year full if health and happiness
Thank u very much for this great work again, I have just on equestion : So we can say That : SBI is used for communication between Control Layer and Infrastructure Layer ? ... NBI is what allow communication between Application Layer and Control Layer ?
When I think of a distributed system in IT, I think of something like distributed storage or distributed compute. In both of those examples, distributed means that all nodes contribute to the whole. Is it the opposite in networking? Does distributed mean that things are siloed or am I missing something? I admit that this is a question more on semantics than anything else, but the apparent difference is interesting.
Hi Jeremy thank you for this video it was amazingly done ! Yet I am a little bit confused, in SD _ access there is a controller but you mentioned that control node represents the control plane too , can you shed some light on this please?
An update for the slides, as of November 13, 2023, Cisco DNA Center changed names to Cisco Catalyst Center. If you skipped Day 61 video, or did not do the exercise you might have missed it.
I am really confused about my future if there is no extinction off course, should I seek the deep knowledge of designing and managing : LANs, Datacenters or WANs ? in another way : CCNP ENCor, CCNP DCCor or CCNP R&S ?! generally the answer is : they are all required in the job market and you have to choose, but still I need some advice to know which path has more priority .
Thanks Jeremy. I have a question. You mentioned that OSPF is no longer needed to run between the devices and instead, they can share the info with the controller node only. But in the later part of the video, IS-IS is mentioned & shown as being used as a routing protocol between the L3 switches. So, 1) Do the devices establish adjacencies just between themselves & the controller node? 2) OR Even if all the L3 switches run IS-IS, they still share the routing info with the controller node? In this case, is it not redundant and thus more resources usage by the devices?
Let me clarify: a routing protocol (usually IS-IS, but OSPF would be possible too) is still needed for routing in the underlay. However, it is not used for routing in the overlay.
@@JeremysITLab Thanks Jeremy. So, are there any examples of SDN solution without the overlay where in the function of calculating routes is done in a centralized controller without the need of running an IGP between the devices?
Guys! I have to renew my CCNA. So I would like request to know which dump you followed or reference of what did you do practice for the exam. Thanks in advance to all. And thanks you very much to Jeremy as your course are make a clear to understand and detailing.
Not entirely correct, "The control plane performs overhead tasks that directly impact the behavior of the data plane. The management plane performs overhead work as well, but that work does not directly impact the data plane. Instead, the management plane includes protocols that allow network engineers to manage the devices. Telnet and Secure Shell (SSH) are two of the most obvious management plane protocols. To emphasize the difference with control plane protocols, think about two routers: one configured to allow Telnet and SSH into the router and one that does not. Both could still be running a routing protocol and routing packets, whether or not they support Telnet and SSH." Odom, W. (2020). 16. In CCNA 200-301 (Vol. 2, pp. 361-362). Cisco Press.
DNA Center takes a huge amount of resources. The best option is a rack rental service, although there's no need to do that for the CCNA. You don't actually need hands-on experience with DNA center.
Passed my CCNA last week and these videos helped a lot. In my opinion Jeremy hands down has the best CCNA course . Thank you for all you do sir!
how many times a year are CCNA exams offered
Awesome, well done! 💯
Glad you like my course :)
how many days of videos are there entirely
Did you only watch Jeremy's course before passing the CCNA exam?
Which dump you followed for the Exam !
Thank you Jeremy, you are the best lecture in my academic history. I would recognize your voice anywhere in this world except in an ocean of course. But in a cave, mall, theme park, abyss, etc. Before I sleep and before I work I listen to you. On Christmas I was summarizing a Day 59 video. Even the lions and elephants here in South Africa stop chasing around when they hear "Welcome to Jeremy's", they know a bullet might harm them if they want to maintain their ancestral food chain near my hut.
Thank you we all appreciate it world wide. Since the 8th working on this? Passion and hard work pay off eventually, you gave back to the world. On a serious sense, before I found you I didn't think this would be fun.
You are my HERO man.
New favorite comment! Haha thanks Siphiwo, glad you're liking the course ;)
simply the Best. . .
HAHA! nothing short of expectation, brilliance and greatness.
Hi Jeremy,
Just passed my CCNA 300-201 exam today (My first attempt). I just want to say thank you so much for your effort and dedication for creating this wonderful video. I only rely on this video w/ your guided labs and anki flash card for as my preparation because I have no budget purchasing other paid tutorials. Again, thankyou so much jeremy! I highly recommend this guided tutorials.
Congrats!
any tips? pls
We almost there boys
Thank you Jeremy. Because of your video, flash cards and Boson practice exams, I got my CCNA pass at first try.
Well done Alvin! That's great news ;)
Amen. I hope I do 2 🙏🏽!
7 steps of evolution:
1. Man created MAC layer with its man-unreadable factory-installed MAC addresses
2. Man created IP layer with man-readable logical IP addresses
3. Man called them IPv4
4. Man created IPv6, whose addresses started mimic MAC via EUI-64, so becoming man-unreadable again, and having no network logic
5. Man created SD-Access SDN for effective control
6. SD-Access created underlay, overlay, fabric layer, and routed access layer layers
7. SD-Access removed MAC layer, surrounding itself by routers only with huge port capacity (a.k.a. multi-layer switches)
Thanks Jeremy.
Took me 6 months of one hour a day, some two hours, to finally get this point hahah. I should have done a video a day, but sometimes it took me 3 days. Glad I'm here though, now I know how to study better and more efficiently.
Passed my CCNA today. Huge thanks Jeremey for the videos. labs and flash cards.
Thank you Jeremy! Passed my CCNA earlier this month thanks to you (and Boson ExSim!). Looking forward to the CCNP course!
Good job! I like his flash cards.
Awesome, congrats Sean! Well done on the pass :)
hi sean so did u just watch jeremys videos and gave an exam or some other reference as well?
@@siddhusas Jeremy's videos along with his packet tracer labs and Anki flashcards. I have used other resources like CBT Nuggets and the official cert guide, but Jeremy's course was by far the easiest for me to learn from. I used the Boson practice exams in study mode once I was almost ready to take the real exam.
@@sean2260 How long and how many hours per day have you studied? I have been studying for about 1 hour a day for the past six months but I still don't feel confident taking the exam.
Thank's Jeremy for your content, just passed my ccna exam this morning.
Awesome, congrats Artur! Well done 💯
Artur... Did you only prepare yourself with these videos.
Passed my CCNA today!! Thanks Jeremy for providing such an excellent course. Looking forward to your CCNP course track 😄
Well done Jay! The CCNP course will start sometime next year, no guarantees for when it will finish though ;)
Hi jeremy i just pass my ccna last week , i only watch your videos as my resource 💖.Thank you a lot
Awesome, congrats Domy! Well done :)
Congrats !!
Do you think that it is possible to pass with just only his course and reading some chapters of the book? BTW GREAT JOB MAN, CONGRATS!!!!!
Hi Jeremy, just passed the CCNA!!! I would like to say a huge thank you as your course was the main study material for me :-) Great job!!!!
Did you only use Jeremy's videos. I am planning to do mine in June
We love you Jeremy!👑
I appreciate the love ;)
🎯 Key Takeaways for quick navigation:
00:01 *🌐 Introduction to Software-Defined Networking (SDN)*
- SDN centralizes the control plane into a controller application.
- SDN controllers use southbound and northbound interfaces for device communication.
- Overview of the SDN architecture with application, control, and infrastructure layers.
04:12 *🛠️ Cisco Software-Defined Access (SD-Access) Basics*
- Introduction to Cisco SD-Access for automating campus LANs.
- Overview of SD-Access architecture with DNA Center as the controller.
- Explanation of terms like fabric, underlay, and overlay in SD-Access.
07:24 *🌐 Underlay and Overlay in SD-Access*
- Underlay is the physical network providing IP connectivity; overlay is the virtual network.
- The fabric combines overlay and underlay in SD-Access.
- Switch roles in SD-Access: edge node, border node, and control node.
12:42 *🖥️ DNA Center Overview and Roles*
- DNA Center acts as the SDN controller for SD-Access.
- DNA Center can also function as a network manager in traditional networks.
- Overview of DNA Center features, including REST API, intent-based networking, and policy configuration.
16:54 *📊 DNA Center Management and Functions*
- DNA Center features, including network hierarchy, IP management, and DHCP configuration.
- Policy configuration in DNA Center, simplifying network behavior intent.
- Device inventory and compliance monitoring in DNA Center.
19:14 *🔄 DNA Center vs. Traditional Network Management*
- Characteristics of traditional network management, including manual configuration and distributed management.
- Advantages of DNA Center-based management, such as centralized control, faster deployments, and reduced manual errors.
20:09 *🖥️ Centralized Management with DNA Center*
- Devices are managed and monitored centrally through the DNA Center GUI or REST API.
- DNA Center translates administrator's network behavior intentions into device configurations.
- Centralized management includes configurations, policies, and software versions.
21:31 *🌐 Summary of SDN, SD-Access, and DNA Center Functions*
- Overview of SDN layers: application, control, and infrastructure.
- Introduction to Cisco SD-Access with key concepts: underlay, overlay, and fabric.
- Functions of Cisco DNA Center as an SDN controller and general network management tool.
21:57 *🧩 Quiz Questions and Key Takeaways*
- Recap of covered topics, emphasizing the importance of understanding underlay, overlay, and fabric.
- Overview of quiz questions with correct answers explained:
- Answer A: Underlay refers to the physical network in SD-Access.
- Answer B: Application layer houses scripts interacting with the controller.
- Answer B: Optimal SD-Access underlay has all links between switches as layer 3.
- Answer D: VXLAN is used to create virtual tunnels in the SD-Access overlay.
- Answers A, C, D: Valid switch roles in Cisco SD-Access are Control, Border, and Edge nodes.
24:40 *🎓 Bonus Question from Boson Software’s ExSim*
- Transition to a bonus practice question from Boson Software’s ExSim for CCNA.
- No specific content mentioned in the provided transcript for this bonus question.
Made with HARPA AI
Hello jeremy thx one more time it s just like make a ligh in room after one year of draknes. Thanks to your clear explanations GOd bless sir and By the way have a wonderful year full if health and happiness
Thank you Majid, have a wonderful year in 2022!
You put a lot of effort into this and I thank you
Thanks :)
Thank you jeremy, such great course and free i am glad that i saw your course
Thanks Toufik :)
Sir u are most fantastic teacher i have ever heared
thanks a lot for the explanation of sdn and how can be applied in my network. Keep it up!!
thanks thanks thanks thanks thanks,
god bless you,
you are really the best professor i have ever seen
may you make ccnp tutorial please
please note that the sd access is just a part of dna not the other way around the sd access just automates the tasks defined in cisco dna center
3 roles for switches un SD-acces:
edge nodes
border nodes
control nodes: LISP
CONTROL YOUR LISP
Hi Jeremy passed in April mostly thanks to your videos...thank you! Just wished you did a ENCOR course!
Hi there, currently studying for the CCNA cert. I have heard there's alot of SDN and Wireless questions in the lastest one?
He is doing ENCOR now
the infrastructure layer is the data plane
the control layer is the control plane
As usual, very great job. thanks, Jeremy.
Thanks Ahmed :)
I can say you had me in the first half with this one
Thank you. You have a very clear voice!
Thank you Jeremy!
Thanks for watching :)
Thanks a lot Jeremy
Please could you explain a little the MCSA and if i should learn it after the CCNA
Thank you Jeremy
Thanks for watching :)
Thanks Jeremy I have just passed my CCNA exam, will you start a CCNP course on the new year?
Congrats Hussein! Well done. I do plan to start a CCNP course sometime next year, but I'm not sure when.
@@JeremysITLab Okay so in this case I have to start a CCNP course what is your recommendation for this journey?
Great video Jeremy
Superb as always, thanks a lot Jeremy!
So close....
Plz cover indepth sd wan and config
Your videos are really helping me a lot
Thank You 😇
thank you Mr. Jeremy
Thanks Erkin :)
still learning but so far so good...
Keep going! Good luck :)
Thank u very much for this great work again,
I have just on equestion : So we can say That : SBI is used for communication between Control Layer and Infrastructure Layer ? ... NBI is what allow communication between Application Layer and Control Layer ?
Thanks Jeremy for the video
Thanks as always for your comments :)
When I think of a distributed system in IT, I think of something like distributed storage or distributed compute. In both of those examples, distributed means that all nodes contribute to the whole. Is it the opposite in networking? Does distributed mean that things are siloed or am I missing something? I admit that this is a question more on semantics than anything else, but the apparent difference is interesting.
Is there a video covering TACACS+ and RADIUS? I have watched every video and did not hear anything about them unless I missed them.
I briefly mention them in the security fundamentals video. You don't have to know much about them for the CCNA.
Hi Jeremy! Thanks for all you do. I had a question. Is it realistic to go after the CCNP Security after the CCNA? Keep up the great work!
I highly recommend getting the CCNP Enterprise first! I think security would be quite difficult straight from CCNA.
@@JeremysITLab Got it. I'm taking that path then. CCNP Enterprise and then Security!
Hi Jeremy, thank you very much for your videos. I want to ask how many videos are left?
One more!
@@JeremysITLab Ok sir, once again, thank you very much
Thanks
Thank a lot Jeremy! I passed my CCNA today, i only used your videos, your practice labs and flashcards.
Awesome, congrats on passing the exam! Well done :)
And thanks for your support, I appreciate it
I feel like I studied hard a technology for days and days just to get hit by a "that's legacy" now🙃
thank you for that deep explaining
Thanks J
Thanks 😊
Thanks Stephen :)
Thank you sir !!
Hi Jeremy thank you for this video it was amazingly done ! Yet I am a little bit confused, in SD _ access there is a controller but you mentioned that control node represents the control plane too , can you shed some light on this please?
Thanks Jeremy
Thank you a lot Mr jeremy for the content.
But is there any way to get the course slides?
Not yet, but soon I'll release them on Teachable (jeremysitlab.teachable.com)
An update for the slides, as of November 13, 2023, Cisco DNA Center changed names to Cisco Catalyst Center. If you skipped Day 61 video, or did not do the exercise you might have missed it.
Thank you Jeremy❤️, i just wanted to know why a video in the playlist is hidden?
That's the last video, it will go public next week!
What portion of this video can we skip for the new CCNA v1.1
F
26:10 I suppose its also accurate to refer to the data plane as the forwarding plane.
thnks you
I am really confused about my future if there is no extinction off course, should I seek the deep knowledge of designing and managing : LANs, Datacenters or WANs ? in another way : CCNP ENCor, CCNP DCCor or CCNP R&S ?! generally the answer is : they are all required in the job market and you have to choose, but still I need some advice to know which path has more priority .
thank you
Is this material still good for new CCNA?
Yes.
Thanks Jeremy. I have a question. You mentioned that OSPF is no longer needed to run between the devices and instead, they can share the info with the controller node only. But in the later part of the video, IS-IS is mentioned & shown as being used as a routing protocol between the L3 switches. So, 1) Do the devices establish adjacencies just between themselves & the controller node? 2) OR Even if all the L3 switches run IS-IS, they still share the routing info with the controller node? In this case, is it not redundant and thus more resources usage by the devices?
Let me clarify: a routing protocol (usually IS-IS, but OSPF would be possible too) is still needed for routing in the underlay. However, it is not used for routing in the overlay.
@@JeremysITLab Thanks Jeremy. So, are there any examples of SDN solution without the overlay where in the function of calculating routes is done in a centralized controller without the need of running an IGP between the devices?
Is the course complete for CCNA exam if we use these videos
tysm
Guys! I have to renew my CCNA. So I would like request to know which dump you followed or reference of what did you do practice for the exam. Thanks in advance to all. And thanks you very much to Jeremy as your course are make a clear to understand and detailing.
Would it be correct to say that DNA Center centralizes the Management Plane in addition to centralizing the Control Plane?
Not entirely correct, "The control plane performs overhead tasks that directly impact the behavior of the data plane. The management plane performs overhead work as well, but that work does not directly impact the data plane. Instead, the management plane includes protocols that allow network engineers to manage the devices. Telnet and Secure Shell (SSH) are two of the most obvious management plane protocols. To emphasize the difference with control plane protocols, think about two routers: one configured to allow Telnet and SSH into the router and one that does not. Both could still be running a routing protocol and routing packets, whether or not they support Telnet and SSH."
Odom, W. (2020). 16. In CCNA 200-301 (Vol. 2, pp. 361-362). Cisco Press.
I thought Cisco DNA Center had been renamed as Cisco Catalyst Center?
i wonder, is it necessary to use IS-IS protocol in SD-Access underlay?
How was your holiday?
Good! Still on holiday ;)
Hello. Cannot access to the free flashcards. Can you help please ?
How can I get hands on experience with DNA center? EvNG?
DNA Center takes a huge amount of resources. The best option is a rack rental service, although there's no need to do that for the CCNA. You don't actually need hands-on experience with DNA center.
@@JeremysITLab I know I dont need it for the CCNA - but if I want to get more experience with it for a job how do I do that? rental is it?
Is it legal to show BOSON questions? By the way. Great tutorial!
Thank you Jeremy for this CCNA video series, what would you reccoment for a smiliar video series for SD WAN Frre Complete course?
I want to be the best there is
I am completely lost in this lesson.
First
18:40
👍👍👍👍
🙏🌹🙏
2nd
Bro how many more acronyms can they fit in the networking sector...
I see that even Jeremy himself acknowledges this at 13:42 hahahah
thanks