Think of SDN as a smarter way to manage how devices connect to the internet or a network, like your home Wi-Fi. Instead of a traditional setup where your router controls everything, SDN uses a clever "traffic cop" (central controller) to guide the data flow. This traffic cop can talk to different devices, like switches and routers, and tell them where data should go, just like a traffic light guiding cars on different lanes. This makes it easier to set up and manage the network, sort of like having a smart system in place.
SDN is more than separation of control plane from data plane, using centralized software for the control plane. SDN is three abstractions: distribution, configuration, and forwarding. The distribution abstraction allows us to turn the old school networking practice of having a protocol per problem into a software community ruled by standards and patterns. Configuration abstraction allows us to map abstract/disparate configuration elements cleanly onto physical hardware. As far as the forwarding abstraction goes, switches and routers might not even be the units of abstraction, it can be an entire data center fabric that’s the abstraction. Regardless, the forwarding abstraction always has two brains to write programs for: the management hardware (CPUs) and the high speed forwarding hardware (ASICS, etc). By separation of these concerns, we can reason and scale independently in each area. This leads to faster innovation via software because we can specialize as deep as we want to go in those areas. The core idea is to make the distributed control problem a logical centralized one, just like we have done for storage and compute.
I wish I could sound as half smart as you. I'm trying to switch my job to something in the IT industry. I earned CompTIA Network+ and studying Security+ now but I have zero experience and not sure if anybody would hire me or what would require me to get a job. If you could share some tips, I would really appreciate it.
I think its a great video because it has managed to deliver useful information about SDN (its histroy and use cases) in a very short and nicely animated format. This video should be useful for technical and management people as well as business leaders.
I don't understand why TH-camrs put loud background music in tutorial kinds of videos. It's good to have but please keep it on low pitch low volume. Thanks for the video though I couldn't follow.
Amazing video!!! It helped me a lot in my college article in the Industrial Network subject. Now I finally understand what is and how works the SDN tecnology.
So is this to say that sdn uses virtualized software to override the hardwares firmware to manage the data? New to IT and studying for my A+, just trying to wrap my head around this.
The idea of a video is so that you can pause, research, and learn again. You can jot down all the terminology, research further, and you'll learn deeper in that way.
No, no it doesn't... This video feels like it is directed towards economists and other non-technical people, only parading potential usages and benefits. I still have zero understanding on what it actually is in technical terms. Search continues...
@@jibunnonamae true , but that type of information u're looking for it, can't find it on TH-cam , u can find this type of info in Books :") i suggest "Networking top down approach" latest edition to start with if u're the beginner in networking stuff u can find all you need to know about this in ch.5 of this book
Well as a first video that explains pretty much what it is and why does it exist, it's really helpful :) Not everyone is a senior technical all knowing master like you, bro.
.... Congratulations on the tutorial, Friend + 1 like here !! .... One question only, is it possible to change the response when a request is made to a network recursive DNS Server, changing response IP to IP from another machine on the network (redirecting to another gateway, my network intend to put 2 gateway)? ....Thank you very much !! ...
Think of SDN as a smarter way to manage how devices connect to the internet or a network, like your home Wi-Fi. Instead of a traditional setup where your router controls everything, SDN uses a clever "traffic cop" (central controller) to guide the data flow.
This traffic cop can talk to different devices, like switches and routers, and tell them where data should go, just like a traffic light guiding cars on different lanes. This makes it easier to set up and manage the network, sort of like having a smart system in place.
Maybe you should make a video bcs i didnt understand a thing from the vid xD. Thanks man.
SDN is more than separation of control plane from data plane, using centralized software for the control plane. SDN is three abstractions: distribution, configuration, and forwarding. The distribution abstraction allows us to turn the old school networking practice of having a protocol per problem into a software community ruled by standards and patterns. Configuration abstraction allows us to map abstract/disparate configuration elements cleanly onto physical hardware. As far as the forwarding abstraction goes, switches and routers might not even be the units of abstraction, it can be an entire data center fabric that’s the abstraction. Regardless, the forwarding abstraction always has two brains to write programs for: the management hardware (CPUs) and the high speed forwarding hardware (ASICS, etc). By separation of these concerns, we can reason and scale independently in each area. This leads to faster innovation via software because we can specialize as deep as we want to go in those areas. The core idea is to make the distributed control problem a logical centralized one, just like we have done for storage and compute.
I wish I could sound as half smart as you. I'm trying to switch my job to something in the IT industry. I earned CompTIA Network+ and studying Security+ now but I have zero experience and not sure if anybody would hire me or what would require me to get a job. If you could share some tips, I would really appreciate it.
@@goobyssi How's it going mate??
SDN: use dedicated software to control many routers (instead of using the router's onboard control software). How hard is this to say?
Makes more sense
does that mean using a software instead of the router's CLI?
Like damn, plain and simple
I think its a great video because it has managed to deliver useful information about SDN (its histroy and use cases) in a very short and nicely animated format.
This video should be useful for technical and management people as well as business leaders.
,
😁
Tamam
So far, even in 2021, this is the best video I could find on SDN. I even started dancing. It was informational, educational, and entertaining!
fantastic video, doing my net+ and this put it together so much better then the multiple courses i am doing.
I don't understand why TH-camrs put loud background music in tutorial kinds of videos. It's good to have but please keep it on low pitch low volume. Thanks for the video though I couldn't follow.
Amazing video!!! It helped me a lot in my college article in the Industrial Network subject. Now I finally understand what is and how works the SDN tecnology.
Can you explain sdn in simple terms, I am having an exam
thank you for this simplified tutorial!
Hello, Can I apply Software Define Network for AI device like jetson nano ?
So is this to say that sdn uses virtualized software to override the hardwares firmware to manage the data? New to IT and studying for my A+, just trying to wrap my head around this.
its very good brief video...but it bit fast if u really learning as a student..
The idea of a video is so that you can pause, research, and learn again. You can jot down all the terminology, research further, and you'll learn deeper in that way.
Amazing, God bless you Sir for sharing information of Heard , Software
okay...but what is software-defined networking? Vague video
Doesn't really explain much.
No, no it doesn't... This video feels like it is directed towards economists and other non-technical people, only parading potential usages and benefits. I still have zero understanding on what it actually is in technical terms. Search continues...
@@jibunnonamae true , but that type of information u're looking for it, can't find it on TH-cam , u can find this type of info in Books :") i suggest "Networking top down approach" latest edition to start with if u're the beginner in networking stuff u can find all you need to know about this in ch.5 of this book
@@jibunnonamae felt exactly same way....
Well as a first video that explains pretty much what it is and why does it exist, it's really helpful :) Not everyone is a senior technical all knowing master like you, bro.
Thank you! Great information and very easy to understand.
Watch and Subscribe to know more about Software Defined Security.
Regards ITshades.com team
th-cam.com/video/jiKR_5uvpPM/w-d-xo.html
@@itshades9387 98o99
nicely explained !!
Watch and Subscribe to know more about Software Defined Security.
Regards ITshades.com team
th-cam.com/video/jiKR_5uvpPM/w-d-xo.html
thanks tones
You sound exactly like the red headed guy with the pony tail that does all the funny videos on facebook...
Superb - thanks! What software do you use to make these great videos?
I like the music
play it at 0.75 speed then thank me later
.... Congratulations on the tutorial, Friend + 1 like here !! .... One question only, is it possible to change the response when a request is made to a network recursive DNS Server, changing response IP to IP from another machine on the network (redirecting to another gateway, my network intend to put 2 gateway)? ....Thank you very much !! ...
Watch and Subscribe to know more about Software Defined Security.
Regards ITshades.com team
th-cam.com/video/jiKR_5uvpPM/w-d-xo.html
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