Free CCNA | Software-Defined Networking | Day 62 | CCNA 200-301 Complete Course

In Day 62 of this free CCNA 200-301 complete course, you will learn about software-defined networking (SDN).

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
0:52 Things we'll cover
1:27 SDN review
2:51 SDN architecture
4:17 SD-Access
7:33 SD-Access Underlay
10:30 SD-Access Overlay
12:35 Cisco DNAC
18:41 DNAC vs Traditional network management
21:22 Things we covered
22:14 Quiz 1
22:42 Quiz 2
23:13 Quiz 3
23:40 Quiz 4
24:14 Quiz 5
24:46 Boson ExSim

#cisco #CCNA

[toke]

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!

[siphiwokhumalo]

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.

[dmitrikazantsev]

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.

[jasperkylemejia]

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.

[alvin]

Thank you Jeremy. Because of your video, flash cards and Boson practice exams, I got my CCNA pass at first try.

[CalculatingTube]

Passed my CCNA today. Huge thanks Jeremey for the videos. labs and flash cards.

[John-kjtd]

🎯 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.

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[jaysejpal]

Passed my CCNA today!! Thanks Jeremy for providing such an excellent course. Looking forward to your CCNP course track 😄

[arthur]

Thank's Jeremy for your content, just passed my ccna exam this morning.

[sean]

Thank you Jeremy! Passed my CCNA earlier this month thanks to you (and Boson ExSim!). Looking forward to the CCNP course!

[spectrumanalyzer]

Superb as always, thanks a lot Jeremy!

[zielkin]

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!!!!

[tgoblue]

You put a lot of effort into this and I thank you

[nikitas]

thanks a lot for the explanation of sdn and how can be applied in my network. Keep it up!!

[domyaljroushi]

Hi jeremy i just pass my ccna last week, i only watch your videos as my resource 💖.Thank you a lot

[ahmedlateef]

As usual, very great job. thanks, Jeremy.

[toufiksouadiadz]

Thank you jeremy, such great course and free i am glad that i saw your course

[mg]

Thank you. You have a very clear voice!

[Lex-corp]

I can say you had me in the first half with this one

[Ali-A]

Thanks a lot Jeremy
Please could you explain a little the MCSA and if i should learn it after the CCNA