Thank you. I'm trying to get certified to work in networking and using a textbook alone has been rough, but with your videos and visuals everything comes together and makes way more sense.
Thanks a lot for your kind compliment! We are always extremely happy to hear such positive feedback! In that case, you might be interested in our free course on PLC Hardware as well bit.ly/2XnnUrF If you ever have any questions, feel free to reach out to us. Happy learning!
@@bertmacklin467 Thats what I'm using at the moment and his video series. Pretty good tbh but just some terms like Ethernet are so vague lol so thats why im here
A couple things: 1. As others have said, cat 5e can be used for 1 Gbps speeds. 2. CSMA/CD is no longer needed for full-duplex switched networks, each link is isolated and collisions are eliminated. Indeed, half-duplex links are no longer specified in 1 Gbps Ethernet, and aren't allowed at all in 10 Gbps. 802.11 Wifi does have collision issues due to its half-duplex nature, but it uses a related CSMA/Collision Avoidance method instead.
I wish I had seen this video ages ago before tearing my hair out for days while setting up my asus router- not many home consumers have had the benefit of any technical training, while many troubleshooting links proved to be information-runarounds. good job on clarity
I have a couple of comments to make about this video, however a bit about myself first. My first experience with a LAN was in early 1978 on the Air Canada reservation system. This LAN used Time Division Multiplexing (TDM), not packets, over coaxial (@2 Mb) or triaxial (@8 Mb) cable and was part of a computer system made by (Rockwell) Collins. My first Ethernet experience was with DECNet connecting VAX 11/780 computers, over 10base5 "Thicknet" cables. My next experience was hand wiring Ethernet controllers, on prototyping boards, for Data General Eclipse computers. I got my Novell Netware CNA about 25 years ago and Cisco CCNA more recently. I have also worked with Token Ring. So, I know a thing or two about networks. As for the points about this presentation, Gigabit Ethernet was designed for use on plain CAT 5 cable and predates 5e, which is just CAT 5 with tighter specs. So, CAT 5 will work fine at 1 Gb, for up to 100M (330"). Also, CSMA/CD is used only for half duplex, as you'd find with coax or hubs. It is not used with full duplex, where collisions are not possible. With CSMA/CD, collisions are normal within the first 512 bits and will trigger re-transmission, with random back off, to avoid additional collisions. There are 3 "official" versions of Ethernet, which followed the original experimental version which ran at 2.91 Mb and had an 8 bit MAC address. The 3 versions are the original DIX 1.0, DIX 2.0 and 802.3. The main difference between 1.0 and 2.0 is the first field was changed from "Type" to "Ethertype/Length" to accommodate 802.3. If the contents of this field is 1500 or less, it's 802.3 or DIX 2, if above 1536. IP normally uses DIX 2. The old Netware IPX used 802.3. There is some more info on Wikipedia: en.wikipedia.org/wiki/IEEE_802.3 And here's a link to the original DIX 1.0 "Blue Book" spec: gordonbell.azurewebsites.net/Ethernet_Blue_Book_1980.pdf Here's an excellent reference: www.oreilly.com/library/view/ethernet-the-definitive/9781449362980/
We are China Hqst brand, we have more than 18 years experience in magnetic components and network connectors industry, focusing on providing better products and efficient service.100% Compatible with Pulse, TE(TRP) , Bel-fuse , Wurth , Halo , Molex, Foxconn, UDE... RJ45, SFP connectors and LAN transformers. Faster delivery; same quality; competitive price. Professional technical support and perfect sales service are our core competitiveness. Looking forward to cooperating with you.
Hey Mr, Im learning about networking. Even though I understood what I was reading, you’ve made of far easier for me to have a mental image in my mind and also to give a clear understanding how Ethernet works. Thank you kindly. Now I must watch your other videos on networking. Wishing you a great day 🙏🏻
Bell invented twisted-pair wiring to counteract capacitance found in non-twisted pairs. "Loading" coils were also added at pre-determined distances. XL and XC cancel themselves out in tuned (resonant) circuits, making the "load" purely resistive. Telephone lines weren't "resonant", but every little bit helped....oops.....XL and XC are inductive and capacitive reactance, respectively. If I've made any errors, please advise.......I retired almost 9-years ago, and my memory of such things is flagging.
Basically Cat5e is 4 pair (8 copper wires) White, White Blue, White, White Orange, White, White Green, White White Brown. This is your standard Cat 5e layout for DVO jacks and how they would be made on ends. Sometimes in the world too you could see the White, White Green and White, White Orange swapped around. That is to give Power Over Ethernet for devices that are using a PoE injector to get power like an outdoor satellite in some instances
We are China Hqst brand, we have more than 18 years experience in magnetic components and network connectors industry, focusing on providing better products and efficient service.100% Compatible with Pulse, TE(TRP) , Bel-fuse , Wurth , Halo , Molex, Foxconn, UDE... RJ45, SFP connectors and LAN transformers. Faster delivery; same quality; competitive price. Professional technical support and perfect sales service are our core competitiveness. Looking forward to cooperating with you.
Best explanation to reach who watched this video..i ever see before, also video logically appears to understand easily. Thank you for sharing this video.
I first came across that at work, where we had several DEC VAX 11/780 computers connected with DECNet over "Thicknet" cables. Later came 10base2, which used T connectors to add devices to the LAN. Thicknet used "vampire" taps, which actually pierced the cable. Also, the cable was usually yellow and called "yellow garden hose". ;-)
Excuse me realpars. You are right cat5 cables are rated for 10 to 100 Mbps BUT cat5e can handle 1gigabit. But you are right about cat5/5e being susceptible to interference.
You know, computer scientists are used to handle the magical "Ether", the 5th element, as a physical substance through which electromagnetic energy must travel. The Ethernet, Ethereum, etc. It allows us to connect to a network.
hello! Thank you for giving me a better understanding in ethernet. This something that is new to me and never knew about it. I had a weird message that I got from my text today and it consisted a lot of numbers and words that I really did not understand about. I saw the word ethernet and wanted to find out more. thank you once more
Yesterday was informeds that my internet connection was down because my ethernet cable was loose. It wasn't loose where it is fixed in at the side of my laptop. I looked at where it was fixed in at the router end and it HAD become loose. The day before my internet connection had been fine and I hadn't touched the router/brushed against it/no one else has used it etc so the cable had become loose of its own accord. Quite a situation!
Hello Real Pars!!.. I am very much thankful for all your videos. Kindly upload some more Industrial Communication Systems. Also PL make some videos on OPC AE and OPC DA System in details with example. Also how we can communicate external world with DCS/SCADA System. once again thanks...!!
Hi Terry, Thank you for your question. Ethernet is commonly found today in many commercial and residential homes. But regarding your question about your ps4, I can only say checking your owner’s manual or contacting the manufacturer is the safest way to ensure the setup requirements for your system. Happy learning!
Internet connections are made via ethernet connections. Typically you would use the same type of cable to connect a device to a router as well as to an internet-connected access point. The only way to truly know if a device has a direct path to an internet connection is to examine the network architecture diagram. This diagram should indicate at what point an internet connection is made.
Does collision detection make sense only for half duplex connection. ? In 7:07 the author says "until the transmission completes" (collision avoided). How the transmitter know that the receiver had received the packet and transmission is successful without a collision.
In normal "office ethernet", collisions are not very important because if a message is not received, there is not much of a concern. Modern network switches minimize the number of collisions, but they do still occur. In "office ethernet", there is no ACK function, so sending a communication packet is like mailing a letter; you send it but unless you asked the recipient if it has been received, you cannot be sure. Industrial Ethernet (Profinet, Ethernet/IP, etc) is different. In these protocols, there is an ACK function that has been added to the stack to make sure that messages are properly received.
@@realpars thanks. Should I assume that the ack is given via an ethernet packet (I guess there are no dedicated pins for it). May be start of a burst of packet and end of burst.
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0:36 0:37 0:38 0:38 0:38
Thank you. I'm trying to get certified to work in networking and using a textbook alone has been rough, but with your videos and visuals everything comes together and makes way more sense.
Thanks a lot for your kind compliment! We are always extremely happy to hear such positive feedback!
In that case, you might be interested in our free course on PLC Hardware as well bit.ly/2XnnUrF
If you ever have any questions, feel free to reach out to us.
Happy learning!
Lmao is it the Mike Meyers book?
Great video, Free CCNA and CCNP Courses that will boost your networking knowledges ruclips.net/video/AVdtxa9ovyM/видео.html
@@bertmacklin467 Thats what I'm using at the moment and his video series. Pretty good tbh but just some terms like Ethernet are so vague lol so thats why im here
Wow you liked all the comments even after 1 year
ikr this is crazy
It's a sign of a genuinely caring and supportive teacher
😀
Nope probably just a bot
That’s dedication
this is one of the best videos I have ever seen on youtube thanks for that!!!! Way to good!!!!
Thanks for your support!
RealPars thank YOU for the great explanations !
ur joking. ik it has loads of info but thare is WAY better stuff than this
@@seanbaxter44 true
@@tokughachisho5814 so true
I love when channels read, Like, and even Answer comments! You are awesome!
We certainly do! :) Thanks for your support, Malec
@@realpars u got my sub! And thank you!
A couple things:
1. As others have said, cat 5e can be used for 1 Gbps speeds.
2. CSMA/CD is no longer needed for full-duplex switched networks, each link is isolated and collisions are eliminated. Indeed, half-duplex links are no longer specified in 1 Gbps Ethernet, and aren't allowed at all in 10 Gbps. 802.11 Wifi does have collision issues due to its half-duplex nature, but it uses a related CSMA/Collision Avoidance method instead.
Could you explain in brief which 802.11 wifi, wifi 1 or 2or 3 has collisions due to half duplex property & which haven't???
nerd
@@seanbaxter44 he may not be a nerd at all, some people actually learn this at school
Wth
@@seanbaxter44🫵🤡
As an electrical engineer trying to learn networking for my job, this is fantastic. Thanks
Thank you very much!
I wish I had seen this video ages ago before tearing my hair out for days while setting up my asus router- not many home consumers have had the benefit of any technical training, while many troubleshooting links proved to be information-runarounds.
good job on clarity
Luckily you have come across it now. Thanks for your comment! Happy learning.
@@realpars yessir
These great videos are so clearly explained. Clear speech, no distracting background music & excellent graphics.
Glad you like them! Thanks for your kind support
wtf is sheffield united fan doin here?
I have a couple of comments to make about this video, however a bit about myself first. My first experience with a LAN was in early 1978 on the Air Canada reservation system. This LAN used Time Division Multiplexing (TDM), not packets, over coaxial (@2 Mb) or triaxial (@8 Mb) cable and was part of a computer system made by (Rockwell) Collins. My first Ethernet experience was with DECNet connecting VAX 11/780 computers, over 10base5 "Thicknet" cables. My next experience was hand wiring Ethernet controllers, on prototyping boards, for Data General Eclipse computers. I got my Novell Netware CNA about 25 years ago and Cisco CCNA more recently. I have also worked with Token Ring. So, I know a thing or two about networks.
As for the points about this presentation, Gigabit Ethernet was designed for use on plain CAT 5 cable and predates 5e, which is just CAT 5 with tighter specs. So, CAT 5 will work fine at 1 Gb, for up to 100M (330"). Also, CSMA/CD is used only for half duplex, as you'd find with coax or hubs. It is not used with full duplex, where collisions are not possible. With CSMA/CD, collisions are normal within the first 512 bits and will trigger re-transmission, with random back off, to avoid additional collisions.
There are 3 "official" versions of Ethernet, which followed the original experimental version which ran at 2.91 Mb and had an 8 bit MAC address. The 3 versions are the original DIX 1.0, DIX 2.0 and 802.3. The main difference between 1.0 and 2.0 is the first field was changed from "Type" to "Ethertype/Length" to accommodate 802.3. If the contents of this field is 1500 or less, it's 802.3 or DIX 2, if above 1536. IP normally uses DIX 2. The old Netware IPX used 802.3.
There is some more info on Wikipedia:
en.wikipedia.org/wiki/IEEE_802.3
And here's a link to the original DIX 1.0 "Blue Book" spec:
gordonbell.azurewebsites.net/Ethernet_Blue_Book_1980.pdf
Here's an excellent reference:
www.oreilly.com/library/view/ethernet-the-definitive/9781449362980/
Hi James,
Thanks for sharing your knowledge with us! We always appreciate such input, many thanks!
We are China Hqst brand, we have more than 18 years experience in magnetic components and network connectors industry, focusing on providing better products and efficient service.100% Compatible with Pulse, TE(TRP) , Bel-fuse , Wurth , Halo , Molex, Foxconn, UDE... RJ45, SFP connectors and LAN transformers. Faster delivery; same quality; competitive price. Professional technical support and perfect sales service are our core competitiveness. Looking forward to cooperating with you.
Hey Mr, Im learning about networking. Even though I understood what I was reading, you’ve made of far easier for me to have a mental image in my mind and also to give a clear understanding how Ethernet works. Thank you kindly. Now I must watch your other videos on networking. Wishing you a great day 🙏🏻
Thanks amazing, Wayne! Keep up the learning curve!
I had zero knowledge on networking. That story today is different. Thanks for your videos
Bell invented twisted-pair wiring to counteract capacitance found in non-twisted pairs. "Loading" coils were also added at pre-determined distances. XL and XC cancel themselves out in tuned (resonant) circuits, making the "load" purely resistive. Telephone lines weren't "resonant", but every little bit helped....oops.....XL and XC are inductive and capacitive reactance, respectively. If I've made any errors, please advise.......I retired almost 9-years ago, and my memory of such things is flagging.
Me watching this video after 4 years of communication engineering.
I regret my choices in college.
Me too😂
the way they teach in colleges is lack of visualization
wow I learnt more from this video than half a year of school, thanks man
Great compliment! Thanks a lot!
Yes
I also
Me too haha
This is very useful for my polytechnic engineering research work. Thanks alot guys!
Great to hear, Abu! Good luck with your research. You are very welcome.
good images, good animations, clear voice, informative explanation. I honestly do not know what else you can do to make this video better
Thanks a lot for your compliment, Tianhao! We are happy to hear that. Happy learning!
A less painfully boring voice
Thank you Realpar team. You're really making impact !!!!! More strength !!!!
Great to hear! Thanks for the support :) Happy learning.
Basically Cat5e is 4 pair (8 copper wires) White, White Blue, White, White Orange, White, White Green, White White Brown. This is your standard Cat 5e layout for DVO jacks and how they would be made on ends. Sometimes in the world too you could see the White, White Green and White, White Orange swapped around. That is to give Power Over Ethernet for devices that are using a PoE injector to get power like an outdoor satellite in some instances
We are China Hqst brand, we have more than 18 years experience in magnetic components and network connectors industry, focusing on providing better products and efficient service.100% Compatible with Pulse, TE(TRP) , Bel-fuse , Wurth , Halo , Molex, Foxconn, UDE... RJ45, SFP connectors and LAN transformers. Faster delivery; same quality; competitive price. Professional technical support and perfect sales service are our core competitiveness. Looking forward to cooperating with you.
I don't skip adds in these videos just to help this guy
Thats really kind of you! Thank you!
does skipping adds cuts down on their income ??? seriously asking
@@sahilsagwekaryes, it does
the most clarified video i have ever come across on ethernet. Thankyou.
Thanks a lot, Kunal!
I just came across your channel! After I made sure this channel was still posting I immediately subscribed!
Glad to hear that! Thank you!
Loving the Diversified approach to industrial automation technology !
I learned both Network and English
Your talking pace and pronunciation are perfect for me(japanese)
Great to hear! Keep up the learning curve! :)
This was amazing you made it so easy to understand for my intro to networking course!
Glad you enjoyed it! Thank you for sharing and happy learning
Thank You. Wish such visual based learning was available during my Engineering College Times !!! That’s all !!!
That's an amazing compliment! Thanks for sharing and happy learning.
Best explanation to reach who watched this video..i ever see before, also video logically appears to understand easily. Thank you for sharing this video.
You are most welcome!
I always had difficulty understanding what ethernet is. You have done a fabulous job at solving my difficultly. Job well done.
We're very happy to hear that, Arec! Thank you for sharing
Haven't watched the video yet but I love your dedication to heart every comment Good for you
Thank you for your appreciation!
This is an amazing channel I am so glad I found this, thank you
Amazing! Thanks for your kind comment, Justin.
Always a great video's from RealPars...
Visualisations are awesome..
Cleared all queries about topics..
Thank you so much..
Thanks for your support, Sushil!
thank you very much
ccna i have learned and you learned me so much
from EGYPT
You are very welcome! Happy learning.
ooo from Egypt nice
Remarkable and beautifully aligned! Thanks RealPars!
Thanks for your support!
This video is so great! Very informative and the diagrams help in visualizing the things in our minds.
Great to hear that, Ankita! Thanks for sharing.
hi.. ANKITA
I love your videos and your topics. Thank you a lot for helping us. You don’t know how much help you are providing. I wish you a happy life 🌷.
You are so welcome! Many thanks for your kind support. Truly appreciated!
I knew most of this but didn’t know how it’s connected. Great video
Thank you!
Very well explained, thank you for all the work you put into this video. 👍
I guess he miss this comment
wow he missed this
Missed by mistake! Our apologies :)! Thank you very much for the support.
35+ years ago, "Ethernet" ran over a thick coaxial cable that many devices could daisy-chain over. Not an 8-wire twisted pair. No longer.
Nerd
@@seanbaxter44 And proud of it !!!
I first came across that at work, where we had several DEC VAX 11/780 computers connected with DECNet over "Thicknet" cables. Later came 10base2, which used T connectors to add devices to the LAN. Thicknet used "vampire" taps, which actually pierced the cable. Also, the cable was usually yellow and called "yellow garden hose". ;-)
very helpful when studying in university. Huge thank you, sir
Glad it was helpful! Happy learning
Excuse me realpars. You are right cat5 cables are rated for 10 to 100 Mbps BUT cat5e can handle 1gigabit. But you are right about cat5/5e being susceptible to interference.
ScottTheScout Also called collisions on any multiplexed cable...
Called error checking and correcting.
Nerd.
really great video! so much easier to understand than the course im doing
Glad it was helpful! Always feel free to leave us any questions - we're more than happy to help.
Ethernet well explained, with simple words and diagrams. Thank you !
Glad it was helpful!
Ethernet in a nutshell and explained perfectly.I will surely recommend my college professors to watch your videos.
Great to hear that, Shashank! Thanks for sharing!
That´s why I recommend your videos, they really leave upstanding information on us. Keep doing your great job!!!
Thanks a lot! We are very happy to hear that. Happy learning!
You explained it quite thoroughly and simply.
Even though this is all going to take a while to sink in it's very fascinating stuff.
Thank you, Keith!
This has been the best explanation ever!!
Thank you, Keith!
You know, computer scientists are used to handle the magical "Ether", the 5th element, as a physical substance through which electromagnetic energy must travel. The Ethernet, Ethereum, etc. It allows us to connect to a network.
Is you a Chinese or Japanese ?
He is a Korean,
@@bhatusonawane7054 he korean
hello! Thank you for giving me a better understanding in ethernet. This something that is new to me and never knew about it. I had a weird message that I got from my text today and it consisted a lot of numbers and words that I really did not understand about. I saw the word ethernet and wanted to find out more. thank you once more
Glad it was helpful! Happy learning
I've just been thinking about how the Ethernet connector resembles a phone jack. Love the video btw
Thx man your the best your the person to watch
Thanks for your support! We appreciate you sharing that.
RealPars no problem
Gracias por traducir la información.
No saben lo valioso que es para mí está información.
Saludos desde México 🎉
Gracias a ti por tu apoyo! 🙏
My first video and it made me subscribe
All information in a nutshell.Very clear video summary.Thank you
You are very welcome, Kavin!
nice wonderful explanation👍👍
stay bless
Thank you!
Simple and great depictions. Loved it
Thank you!
This channel is better than Uni ❤ thank you so much
Glad you think so! Thanks for your support, Samir
Dang respect for him keeping his word 😮
This vid helped me learn! Love learning new things
Glad it was helpful!
Thx for explaining! Love the video!
You're very welcome!
Hey! Real pars...I really liked ur video...ur lyk my savior...tnks for the useful info👌
Thanks a ton!
Legends say you still heart comments
Always!
We just installed some twisted pair wiring and I wanted to know more about ethernet thank you
Glad we could help, Jacob!
You're doing great job man 💪 👍👌
Thank you, Mohan!
Simple and best way to explain everything
Thank you - Bilal!
Best explanation!
Glad it was helpful!
Its crisp and clear, thank you
Great to hear that! Thanks for sharing that with us.
Very interesting to have seen this video. It has stopped me from making connection mistakes. Thanks.
Glad it was helpful, Mick! Happy learning
I always wondered what ethernet was
Great video!!!
Glad it was helpful!
Thank u so much for this now i can truly understand what Ethernet actually is! No more confusions
We're very happy to hear that! Happy learning
Thank you so much sir
Most welcome!
Youve hearted nearly every single comment since 2019, that is wild commitment
We always want to show our appreciation for the endless support we receive from you all! Happy learning
Great video thanks for helping!
You're very welcome!
Yesterday was informeds that my internet connection was down because my ethernet cable was loose. It wasn't loose where it is fixed in at the side of my laptop. I looked at where it was fixed in at the router end and it HAD become loose. The day before my internet connection had been fine and I hadn't touched the router/brushed against it/no one else has used it etc so the cable had become loose of its own accord. Quite a situation!
Really like your videos, are extremely understandable and useful
Happy to hear that! Feel free to leave us any questions you might have along the way.
Great informative! Great animation! Great Voice thank You realpars !!!!!!!!!!
Our pleasure!
It was clear explanation on the topic. Thank you.
Glad to hear that, happy learning!
Hello Real Pars!!..
I am very much thankful for all your videos.
Kindly upload some more Industrial Communication Systems. Also PL make some videos on OPC AE and OPC DA System in details with example.
Also how we can communicate external world with DCS/SCADA System.
once again thanks...!!
You are very welcome! Thanks a lot for the topic suggestion, I will pass this on to our creator team. Happy learning!
thanks for acknowledging...
PL make videos on these topics at earliest.
You really a good teacher
Thank you, Taha!
thank you so much, My mind is now clear about Ethernet.
You are most welcome! Glad our video course was helpful!
Thanks for the video, sir🙏 exactly what I need.
You are most welcome!
I love this way of explanation
Glad to hear that, Suzana!
This video make my time worth
Do i need internet/wifi for Ethernet
Can i just have the Ethernet connected to a ps4 and nothing else?
Hi Terry,
Thank you for your question. Ethernet is commonly found today in many commercial and residential homes. But regarding your question about your ps4, I can only say checking your owner’s manual or contacting the manufacturer is the safest way to ensure the setup requirements for your system.
Happy learning!
How can i know, if the cable I've connected from my ONT to access Point(router) is Ethernet or Internet cable?
Internet connections are made via ethernet connections. Typically you would use the same type of cable to connect a device to a router as well as to an internet-connected access point. The only way to truly know if a device has a direct path to an internet connection is to examine the network architecture diagram. This diagram should indicate at what point an internet connection is made.
@@realpars I got it, Thankyou for the guidance.
Amazing video very formative!!
Glad it was helpful!
Thanks to this video, I could easily understand this topic
Great to hear that. Happy learning!
Nice video dude! I’m buying one right now.
Hope you enjoy it!
winderful as usual, very informative and deeply explained, thank you
The best teacher
Thank you, Kabanda!
Great video. Thank you👍
Glad you enjoyed it
Does collision detection make sense only for half duplex connection. ? In 7:07 the author says "until the transmission completes" (collision avoided). How the transmitter know that the receiver had received the packet and transmission is successful without a collision.
In normal "office ethernet", collisions are not very important because if a message is not received, there is not much of a concern. Modern network switches minimize the number of collisions, but they do still occur. In "office ethernet", there is no ACK function, so sending a communication packet is like mailing a letter; you send it but unless you asked the recipient if it has been received, you cannot be sure. Industrial Ethernet (Profinet, Ethernet/IP, etc) is different. In these protocols, there is an ACK function that has been added to the stack to make sure that messages are properly received.
@@realpars thanks. Should I assume that the ack is given via an ethernet packet (I guess there are no dedicated pins for it). May be start of a burst of packet and end of burst.
Great video lecture! Well explanied!
Glad you liked it! Thanks for sharing and happy learning!
Outstanding quality. Thank you for sharing this amazing video.
Glad you enjoyed it, Piotr! Thanks for sharing.
Thank you very much sir ,
This video contains actually what i need🙏
You're very welcome, Shivam! Great to hear that.
Thank you very much! It was really easier to understand!
Great to hear that!
Woah... I am into this channel from now ... Carry on... 👍👍👏👏
Thank you so much!
Beautifully explained
Thank you, Kolkatar!
Saw this just before the viva. This is so well made.
Thank you!
Best tutorial by far!
Sharing information be like ethernet without collision 👌👌😍