apalrds adventures | Bridging the Ether: The Evolution of the Ethernet Link Layer, VLANs, and More @apalrdsadventures | Uploaded July 2024 | Updated October 2024, 7 hours ago.
Today I'm diving DEEP into the world of the Ethernet link layer (layer 2). It's a very misunderstood part of network engineering, and confusion around the relationships between layers 2 and 3, VLANs, and why layer 2 and 3 are how they are, can easily trip up newcomers. But I'm going much further than that, from the basics of Ethernet framing, to bridged forwarding, spanning trees, and more!

Support me on Ko-Fi if you enjoy my content and find it useful:
ko-fi.com/apalrd

Feel free to chat about my upcoming projects on Discord!
discord.gg/xJsaEukAr4

Follow me on Mastodon:
hachyderm.io/@apalrd

Timestamps:
0:00:00 - Introduction
0:00:34 - OSI Model
0:02:01 - History of Networking
0:07:44 - Ethernet Framing
0:12:23 - Unicast and Multicast
0:17:15 - Neighbor Discovery
0:24:23 - Bridging the Ether (802.1D)
0:30:08 - Spanning Trees (802.1W)
0:41:36 - Link Aggregation (802.3AD)
0:48:18 - Virtual LANs (802.1Q)
1:01:21 - Access Control Lists
1:07:40 - Wire/Port Security (802.1X/802.1AE)
1:15:09 - Scaling Up (TRILL, 802.1AQ, EVPN)
1:31:00 - Conclusion

#networking #ethernet #networkengineer