Ground Zero of Networking: Mastering OSI's Physical Layer 1
HTML-код
- Опубликовано: 19 авг 2024
- OSI Layer 1 comprises three sublayers: encoding, parallel to serial and amplifiers, LEDs, and lasers. Layer 1 pushes data to mind-blowing speeds of 20Tbps across ocean floors via fiber cables. New server NICs are pumping data at 200Gbps in data centers.
Layer 1 is where signals are impacted by NEXT (Near End Crosstalk) FEXT (Far End Crosstalk), reflection, refraction, dispersion, absorption, and attenuation just to name a few! More money is spent at Layer 1 than all other layers combined!
Our Free E-Books online for IT students-IT professionals and Anyone wanting to further their technical education: drive.google.c...
If you would like to support the channel, Join our channel membership, it’s $2.99/month (less than a Starbucks coffee); see the “Join” button on our channel homepage. / @techsavvyproductions
OR
Subscribe to the channel as it helps our channel perform better on RUclips’s algorithm.
Check out our RUclips channel for more content!
RUclips: / vanderl2796
Check out our Website: www.techsavvyp...
Mr.V Linkedin: / lowell-vanderpool-5797...
Links to Documentation
PowerPoints in *.pptx format: drive.google.c...
Slide Deck in PDF: drive.google.c...
Video Notes in *.docx: drive.google.c...
Video Notes in PDF: drive.google.c...
Email: mrvanderpool@techsavvyproductions.com
Quick Access to more videos on TechSavvyProductions Channel:
Troubleshooting Windows Lockups, Application Hangs, and Blue Screen of Death • IT Admins' Guide to Wi...
TPM 2.0 using Windows 11 and Windows 10 • TPM 2.0 Demystified: I...
Windows 10 Secure Boot: Sharpen your Security • Boot Up with Confidenc...
UEFI Explained: Windows 10 and UEFI • UEFI Explained: Windo...
Windows Recovery Environment WinRE: Explained • Windows Recovery Envir...
How to Rescue Data when Windows will not Boot • From Boot Failure to D...
Windows 10 startup problems: Fixing Boot Problems • Windows 10 startup pro...
Day 1: Troubleshooting Windows Applications. What is a process and What are threads? • Mastering Windows Appl...
Day 2: Troubleshooting Windows Applications. Types of Applications and Processes. • Troubleshooting Essent...
Day 3: Troubleshooting Windows Applications: Process States • Windows Application Tr...
Day 4: Process Explorer Metrics and Troubleshooting Windows Applications • Mastering Process Expl...
Day 5: A Look at Microsoft Store Apps and Why we don’t Troubleshoot them! • Troubleshooting Micros...
Day 6: Linux GUI Applications are coming to Windows • Linux GUI on Windows: ...
Day 7: Understanding Application *.DLL files • Cracking the Code: Day...
Windows Services: A Technical Look at Windows 11 and Server 2022 Part 1 • Windows 11 & Server 20...
Hyper-V Explained: Providing Network-Storage-Graphic performance in a Virtual Machine • Hyper-V Performance Wi...
Hyper-V: Understanding Virtual Machines • Demystifying Virtual M...
Hyper V: Advanced Topics Performance NUMA and Shielded VMs • Hyper-V Performance an...
Out of Band Server Management: A Look at HP iLO • Going Rogue: How Out o...
Troubleshooting Windows 10 and Windows 11 Using Task Manager • Task Manager Unveiled:...
How to Rescue Data when Windows will not Boot • From Boot Failure to D...
Advanced Troubleshooting for Frozen/Lockup Computers/Servers and Applications • Resolving Windows Appl...
Troubleshooting Windows Lockups, Application Hangs, and Blue Screen of Death • IT Admins' Guide to Wi...
Understanding and Troubleshooting Fiber-Optic Communication • Fiber Faults to Fixes:...
Keeping Your Fiber Optic Skills Sharp: Understanding Fiber-optic communication • How to Stay Lit: Maste...
Maximize your Server RAID Performance • RAID to the Max: Boost...
Network Switch Explained: ASIC chips, Extending your LAN • LAN 2.0: How Network S...
This was mindblowingly informative. These deep dives are absolutely fascinating, please accept our sincere appreciation for the effort you have undertaken to further our understanding about these critical topics.
Thanks for watching
I don't understand how someone can put a dislike on this video. This is HUGE work! I have some research to do related to WEP/WPA/WPA2 and I hope Lowell has made a video about this subject, this is my primary source of IT information on RUclips :)
Thanks for watching and the comments!
Mr. Vanderpool thanks so much you do a great job of communicating and using real world examples. I’ve learned so much more from you than I have for the courses I payed for. Thanks again for your work.
Charles thanks for the kind words and encouragement!
I've worked as a 'cable guy' in some pretty austere conditions in remote villages in Alaska and appreciate the complexities of layer 1. You have done an excellent job at presenting new and interesting information. I knew about the importance of clean FO connectors but never realized dirt could cause permanent damage to the connection. Just that new information and the detailed explanation as to the why made me want to return for more information. I'm a new fan of #techsavvyproductions.
Welcome to the channel!
This was more detailed than a Cisco course i followed (in 2009)!
Thank you for the comments!
Excellent resource for layer 1, thank you so much for such great quality video.
Glad you like it! I enjoyed doing this OSI series!
Gotta say thank you for making these videos. Clear, logical presentation, with the right amount of info. Thank you!
Glad you like them!
I'm watching your videos from France. Your videos always provide relevant content . Thanks !
Nous sommes très heureux d'avoir des nouvelles de nos amis en France. Merci d'avoir regardé la chaîne.
I'm thinking of doing a fibre course, just to learn more stuff like this. Absolutely awesome delivery as always. Thank you and respect to all the fibre engineers carrying out quality assurance checks. I know first hand if the fibre isn't right, it wreaks havoc across network switches leaving IT with a bad reputation for no reason.
Thanks for the comments and for watching and supporting the channel!
Virtually all fibre faults are man made. IE the consequence of civil constructions, RTAs or disturbance in the fibre joints themselves.
Amazing video Mr V, you managed to teach an OLD IT dog a new trick, More of this amazing knowledge please. Best wishes.
This is a delightful subject, I hope to come back to OSI and do more videos.
Thanks a lot sir. Your presentation is so helpful and interestingly fun to watch. It makes the subject much absorbable. I like your voice and humor style. Thanks again!
Thank you for the comments and feedback!
I just want to congratulate your work. This was such an amazing and deep explanation of Layer 1. I learned so much with your video. Thanks for sharing all your knowledge. Greetings!
Francisco, I enjoyed the study and production of these OSI videos. My only wish is that more folks did, it is such an important subject and so interesting! Thanks for the comment!
omy gosh!! im so blessed to have come accross your channel. I love IT but recently i was feeling as if that passion was slightly missing from many channels which made it much less intresting that what all this truly is, when watching you though, i remember why im so passionate about this all. thanks mate. Il be sure to share and like your content, just subd
p.s. i would love to hear my fellow IT nerds p.o.v. on what i mentioned about the lack of drive some channels have when presenting the data and if you have any recomendations for other channels that keep it relevant and intresting- please, please share- fb, ytube, reddit, everything and anything
Included in almost all videos posted are video notes which have a wealth of additional material for each subject. Thank you for your support. We encourage viewers to share resources, methods and comments.
Great, was looking for the first diagram everywhere.. your video was the first one that explained what I needed… respect..🙂
Glad it helped
Wonderfully made! The Lord has given you so much knowledge, brother. It's no doubt that we were made in the image of God. Thanks for those verses you display from time to time. God's Word does not return empty (Isaiah 55:11).
Thank you Eladio!
Terrific Video! Congratulations
thanks for watching
These are such great video
Glad you like them! I really enjoyed doing them!
Terrific Video, Thank you!
Glad you liked it!
I appreciate the orlando magic cup! go magic :)
: )
Thank you for this great work
Thanks for watching!
Excellent video dude 10/10 well done.
I really enjoyed doing this series, it is not very popular so thanks for the good word!
@@TechsavvyProductions I truly thank you because It's obvious the amount of work and effort that has gone into making these videos with supporting documentation too, it simply doesn't get better than that.
Wow this is amazing. Do you recommend any books on this subject? Thanks so much for this awesome video
Most IT textbooks cover this subject very lightly, but many engineering textbooks give the subject a good review. Look up the 3 sublayers I shared using Google and you should get some great resources. Thanks for watching!
The best book on the subject is: Computer Networks by Andrew Tanenbaum - it's really amazing! I hope Lowell approves ;)
finally i understand layer 1
Awesome, thanks for watching the channel
Thank you ! Really well explained in good detail!
You are welcome!
Mr. V rocks ! Good job.
Thanks for watching!
3:10 to 3:17 is exact keyword of this topic
thanks for watching
Great Post. Thank you.
Thanks for watching
Thank you....
thanks for watching!
Thanks Sir for such great video full of information.
Thanks for watching
Love your videos. Thanks for sharing.
Thanks for watching
Thank you!
You're welcome!
a. It is an amazing video and thank you. In the details you analyze problems in transferring techniques, from the other side, I was waiting you also give solutions to the problems, but unfortunately you didn't.
b. In my tech life and activity, I have read a lot and seen many videos related to OSI. The specific point I never understood is how all information from e.g. source, top to down six layer software information, is finally converted to electrical signals to go to final layer 1 Physical layer. Something software is converted to something hardware. What is there? An assembly machine language. Something else? Same thing happens to TCP/IP.
Yiannis, the NIC drivers (software) play a major role in layer 2 the data-link layer in the final prep of data prior to the chips, drivers, encoders, etc at layer 1. Thanks for watching and the comments.
@@TechsavvyProductions Sir, thank you for your time and replying.
God I love your channel
And thank you for teaching this
After teaching for 30+ years I know there are folks who really want to learn and this channel is for them. This is a stepping stone for many for higher education or even engineering and for some just the delight in better understanding a technology. Thanks for watching.
5 min just to sell us on how important layer 1 is? We get it. It's important. It's like you're the CEO of layer 1
Thanks for watching!
The most amazing thing about 200G circuits is the amount of screaming, shouting, swearing and finger pointing done by the _vile inhabitants_ of the data centres when a ticket is trucked because the circuit has gone down with *no light* Almost as though it's the engineers fault 😂
Thanks for sharing!
200Gbps in the data centers? *cries in 1gbit ethernet*
Thanks for watching
Awesome
Thanks for watching!
BBN ! ruclips.net/video/yU9oMOcRsuE/видео.html
Great video you shared!!!!