Networking Basics - OSPF Theory

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In this video, you'll learn the theory of the Open Shortest Path First routing protocol, which we call OSPF for short. OSPF is the most popular interior gateway routing protocol in use today, and you'll understand how link state databases are constructed with information from link state advertisements (LSAs), the difference between an OSPF Neighbor and an OSPF Adjacency, OSPF areas, and how OSPF performs its Cost calculations.

Enjoy the training!
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Kevin Wallace, CCIEx2 #7945 Emeritus (Collaboration and R&S)
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If you enjoyed this video, here is the video title and also the link for you to share:
Networking Basics - OSPF Theory
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[nishan_nb]

The power of explaining it in such a way, that it is more easy to comprehend, is a gift. I am very thankful for that.

[dhruvkhurana]

This is by far the best explanation of OSPF on the whole Internet!! Thank you Kevin

[terrymaina]

Oh my God!!this explanation made my life so easy...you are God sent Sir.

[TheCartographeraoe]

Phenomenal explanation of the overall theory. Really put the details in perspective for me. Thanks Kevin!

[jimboelterdotcomm]

Love the "puzzle piece" metaphor - really helps to comprehend the process.

[lonehunter]

I wish I had seen this before. Things have cemented in my brains like never before.

[BeeBumper]

Always worth going back to this topic especially reviewing the different types of lsa's. Looking forward to it.

[pianokeyz]

Thank you. You get 🥇first place for explanation and understanding. You’re awesome!

[bobbyb]

I've looked all around youtube for networking videos, and most of them aren't for me. Your videos are organized well, have a good pace, and help me visualize things well, among other things. Thanks for making these!

[christopherzachow]

Thank god someone was able to explain it in a more simple way

[dameonpryce]

Great video! I hope this is the first of an OSPF series!!

[zaffirk]

I understand it clearly now. Thank you very much.

[Tshitso_M]

you'll never go wrong with Kevin Wallace's explanations

[csabah.]

Perfect timing. I just learned today about OSPF. 😉

[pp-plzg]

I sighed after watching this post, thanks Wallace!

[mariantorres]

I love it the best explanation ever hello and thank you from costa rica

[david]

Excellent video as always Kevin! What software do you use for your presentations?

[androidery]

@Kevin Wallace - Do we have permission to screenshot the graphics for personal study use ?

[balamuraliganeshapandi]

Hey Kevin
Good day to you!
Do you have CCNA 200-120 videos.

[fugoogle_was_already_taken]

Its unlikely, that navigation uses Dijkstra. It most likely uses A* because it has geolocation reference and can infer proper metric to the destination.