The Magic Behind WAN Networking: Exploring OSI's Layer 2
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- Опубликовано: 19 авг 2024
- The OSI layer 2 or Data Link Layer provides a host of services to both the Network Layer and Layer 1. Error detection, Flow control, data organization into frame structures, synchronization, and reliability are the complex features of Layer 2. We will look at ethernet, DSL, PPP, DOCSIS 3, SONET, and more.
Transfers data between adjacent network nodes! The principal service is transferring data from the network layer of the source to the network layer of the destination node. The importance of flags in the frame. We will explore frame check sequence (FCS) and Forward Error Correction (FEC). Automatic repeat Request or (ARQ) and its role in the standard ITU G.hm standard.
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the reason i love your channel is because you show us how the networking protocols we learn in school are used in real life. march on
You understand exactly the purpose of this series!!!
Studying for CCNA and these videos are very helpful for materializing and getting a better understanding of the OSI. Thank you.
Glad it was helpful!
You're efforts are a gift to the IT world , much thanks from this side. I saw you started this channel with your dad, know the legacy left here can never be shaken, solid. Thank you again.
Thank you taking the time to encourage us!
Wow another great video Mr V My condolences on the loss of your father
Thank you!
Huge work! and by the way: Happy new year Lowell ! :)
Same to you!
Thanks for this amazing walk through
Thank you for watching!
Complex subject, I need some pain killers!!
I could do six hours of video on this subject alone!
@@TechsavvyProductions live free or die hard 😄👍🏽
Thanks very much for the video
Thanks for watching!
Excelent video!! It's really good content
Glad you enjoyed it, thanks for watching!
21:00 Isn't auto-negotiation a Physical Layer technology, since it's purpose is link establishment, not speed limiting?
You are correct it is a link establishment but due to different switch port and NIC speeds it also negotiates the acceptable speed between the switch speed and NIC.