OSPF LSA - the BEST explanation of the Types of OSPF LSAs
33,245
Published 2022-07-25
In this video, we illustrate and explain the 5 main types of OSPF LSAs:
Type 1 LSAs - Router LSA
Type 2 LSAs - Network LSA
Type 3 LSAs - Summary LSA
Type 4 LSAs - ASBR Summary LSA
Type 5 LSAs - External LSAs
This is lesson 9 of the Practical OSPF series. The full series is available here:
• Practical OSPF
00:00 - Lesson 9, 10, 11, and 12 - OSPF LSAs Types
00:50 - Topology Introduction
01:15 - Type 1 LSAs - Router LSA
02:00 - Type 2 LSAs - Network LSA
02:26 - Simple Illustration of Type 1 and Type 2 LSAs
05:19 - Type 3 LSAs - Summary LSA
08:41 - INTRA Area Routes vs INTER Area Routes vs External Routes
09:36 - Type 5 LSAs - External LSA
11:11 - Type 4 LSAs - ASBR-Summary LSA
13:29 - Summary / Outro / Next Lesson
=== PRE-REQUISITES ===
LSAs and LSDBs:
• OSPF Framework & OSPF Packets: LSDB,...
OSPF Areas and OSPF Types of Routers:
• OSPF Areas and OSPF Types of Routers ...
Designated Routers and Backup Designated Routers (DR / BDR):
• Designated Router // Backup Designate...
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🎯 Full Practical OSPF Series ➡️ pracnet.net/ospf:
• Practical OSPF
All Comments (21)
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📌 More free preview lessons from the Practical OSPF course: pracnet.net/ospf 📌 Want even more? Check out the full course: pracnet.net/ospfcourse 📌 CCNA Resources: pracnet.net/ccna 📌 Learn Networking: pracnet.net/nf 📌 Learn & Practice Subnetting: subnetipv4.com/
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Perfect explained LSA Types 1,2,3,4,5
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Ed, you're a bit of a savant. I will never understand how you can have such a grasp of all of this. Your instruction is fantastic, I will have to review this when I'm not half asleep, but what you share with us is AMAZING.
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excellent presentation. Thanks!
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Best explanation I have come across so far! Thanks for the great work.
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Watching OSPF topics on your channel. One of the Best teacher. You are awesome in conveying the information with pictorial form.
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Sorry to be that person but there are actually 11 types of LSAs (OSPF). LSA Type 1 Router LSA LSA Type 2 Network LSA LSA Type 3 or 4 Summary LSA & ASBR LSA LSA Type 5 Autonomous System External LSA LSA Type 6 Multicast OSPF LSA Type LSA Type 7 Defined for Not-So-Stubby-Areas LSA Type 8 External Attribute LSA for BGP LSA Type 9,10,11 Opaque LSA RFC 5250 back in 2008 discusses these. Cisco, one, it not the largest, vendor which many people are familiar with, only supported 1-5 for the longest but other vendors supported OSPF LSAs (6-11) well before especially with the advent of Traffic Engineering (10-11 "Opaque" LSAs). Very good explanation on the 5 types you discussed here.
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Greate explanation about the LSAs. Thanks
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Yes, this is indeed the best explanation.
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seriously appreciate your videos, wish I had found you before I payed for other courses...
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Extensive explanation in a brief way 🫶
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Excelent explanation about LSA
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Your explanation of LSA types is trully best, as you promised in description!
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I have been searching for almost 7 years to know what is the LSA Types differences and their nonsense theory and you nailed it in a shot. Superb. It feels like no instructor knows what exactly LSA's are except you.
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Thank you very much, such an amazing explanation
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Saying Thank you is a very least. I really have cleared many doubts through your content.
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Mind Blown!!! its like a clog in my brain has melted due to this OSPF LSA types
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WOW. Best content I've run across. Greatly appreciate your style.
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This is the best video I have seen about LSA's in a simple understandable way!
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I can't thank you enough for this clear and brief lecture. That was fantastically done!
