MicroNugget: Cisco OSPF Areas & LSA Types Explained | CBT Nuggets

[@bernyukas]

Every single time I need an OSPF refresh, I come to this video. Thanks Jeremy

[@TheFearize]

crazy, i've just spend like 3 hours studying this and you just show it to me in 5 minutes... Give this man a medal!

[@jasonlarcome3008]

I literally just said the same thing to my girlfriend and she had no idea, but I am amazed! Definitely a medal!

[@chriswhite1209]

This five minute video did a lot better than two chapters in the Cisco books. Great work.

[@jeff_mci_gaming6018]

Cisco purposely makes things sound more difficult than they really are...quite annoying.

[@abinjoseph9808]

@@jeff_mci_gaming6018the main draw back for cisco is that they tell the details but not the story

[@connorrundell7648]

@@abinjoseph9808 That's a great way to explain CISCO.

[@mrgoodvibes1253]

@@jeff_mci_gaming6018 THANK YOU! It is so fucking true!

[@arghosinha1424]

Can't agree more.

[@gunnertwin5633]

I understood it perfectly, it's not meant to be viewed by absolute beginners but by people that already know them and just want a quick refresh. Excellent job.

[@YesHotMandu]

"I'm gonna sit down now, and breathe in a brown paper bag" Golden. :) Thanks Jeremy!

[@cbtnuggets]

We are glad you enjoyed this MicroNugget and we want them to do exactly that! Thanks for the feedback.

[@awsal-bayati5560]

most amazing fast explanation i ever seen,thanks jeremy,you are my cisco learning godfather,i achieved CCNA certificate because of your nuggets and also almost achieved the CCNP route exam 742/790,,,,retaking the exam in 3 days with gods help.....

[@cbtnuggets]

AWS SAAD Thanks for the feedback! We will pass along your comments to Jeremy. Congratulations on earning your CCNA and good luck with your CCNP! Keep us updated on how the exam goes!

[@evanmeyer989]

Its been 3 days. So did u make it?!

[@AW-uh2ux]

This is literally the most awesome OSPF LSA networking explanation I've ever seen.

[@requemao]

I had to watch it twice in a row, but those were the most effective 11 minutes I've spent on CCNP. Kudos to Jeremy.

[@andrewflynn1886]

WOW dude!!! (With respect). GREAT video! This was the quickest, crispest, clearest explanation of OSPF I've ever seen! Thought I'd spend the day getting refreshed on OSPF area types, summarization and LSA types for a workshop next, but it only took 5 minutes and 27 seconds!!!! :) THANK YOU!

[@ekotv777]

Exactly what i needed. I have to learn 500 pages and do a lot of exams aspart of my preparation to my final exam, such videos are perfect for me 🙂

[@dg-hughes]

This was well done. When I first started learning about LSAs it was so dry and boring I thought I'd die from the dullness. This video clearly explained what LSAs are and did it in a short time, a mark of a good teacher.

[@klausrenz7184]

This was the fastest and clearest Explaination of the LAS Types :) What others try to explain in 1 Hour got summarized and optimized in 5 minutes. Good job.

[@MustafaFekaiki]

I was amazed how you explained in just 5 minutes and I was studying with some video tutorial trying to explain it for hours . Cisco even make it very unclear . Thank you very much .

[@isendel333]

Jeremy I love all your videos. Keep up the good work. You rock. If I may be allowed to add a few lines to your masterful and fun method of teaching. LSA & Area Types Relationship: Stub = Block 4 & 5 LSA NSSA = Blocks type 5 LSA originated from backbone area but allow type 7 originated from within the NSSA (nonbackbone area ASBR). Totally Stub = Totally (block3LSA) + Stub (block 4&5 LSA) Totally NSSA = Totally (block 3LSA) + NSSA (block 4&5 LSA but allow type 7) + Stub (block4&5 LSA) "Totally" means Block 3 LSA (Cisco proprietary configured only on ABR) in addition to whatever LSA's are being blocked by the word following "Totally". e.g. Totally stub: Block 3 LSA in addition to the ones already blocked by the word "Stub" which are 4 &5 "Totally" Is not on itself an area type.

[@username18210]

kept repeating a nugget for days regarding LSAs. This is the first time i understood it! Micronuggets work! Thanks Jeremy!

[@BigJwlz]

I appreciate this fast explanation style. It helps me get the material sooner so I can move on to other subject matter. I can always play it again if I miss something.

[@sadjidalebid9509]

I've been watching videos of 30 min explaining this concept and didn't understand like i did with this one, thank youuu.

[@nevet5m]

This is the best OSPF video the Internet has ever been blessed with. Awesome work Jeremy!

[@hikerguy1520]

Holy shnikeys! This is Jeremy after 10 shots of espresso!! This is best explanation I've ever heard or read. Concise and to the point. I never fully understood stub, totally stubby and NSSA until this video. Now it's very clear what the differences are and what they represent. And I actually love the fast talking. It makes you stay focused out of fear of missing something lol Nicely done Jeremy!!!!

[@cbtnuggets]

Thanks for the feedback Francis! We love to hear when our Nuggets or MicroNuggets help people learn.

[@nimahel]

Thanks for this video, it is the most helpful and straightforward way to explain areas and LSA types! Most every other source including official Cisco press make it so convoluted, videos like these are a blessing!

[@mamoonaljundi3889]

Jeremy you are my teacher since many years, i enjoy listening to your voice and your lovely jokes. You are the master of Networking. Can't thank you enough. Please produce more of these videos and make your own channel. Hope to see videos on Virtualization and AWS/Azure from you soon.

[@anonymously_me1803]

Jeremy, I LOVE how you get to the point! I have ADHD and this helps me A LOT! YOU'RE A LIFE SAVER! THANKS SO MUCH!

[@cbtnuggets]

We're so glad to hear you enjoyed Jeremy's video! Thank you for learning with us.

[@Androcentus]

I'm proud Jeremy has Romanian roots. He is the best! Thinking of going for CCIE from CCNP.

[@syedmubinhusain7923]

Every time I see this I am astonished how you guys simplify all this. Kudos!!

[@cbtnuggets]

Thank you Mubeen!

[@jacktuten4326]

This is the best explanation of OSPF Areas and LSA types I have come across. :)

[@iamhasdib2862]

He is the one hell of the best speaker i've heard. Thanks Sir jeremy for making videos and uploading to yt.

[@linsturnbow3871]

That was excellent! You did a great job at conveying the concepts clearly in the most succinct way possible. Thank you!

[@xStealthyy]

You're actually a weapon, you are helping me so much with my learning, thank you!

[@mohamed2005777]

The magic OSPF Areas summary which reflect great knowledge and experience, thanks jermy for that nuggets

[@cbtnuggets]

Rishab, Thanks for the feedback. Jeremy is an excellent teacher. Could you be a little more specific in your question? The CBT Nuggets training series will cover all material needed to pass the specific exam.

[@goba05]

Great video!! You are wonderfully explaining OSPF Types in less than 6 minutes! Well done!

[@pritishbarbara7962]

Good quick stuff before any meeting with TAC or Interview, Hats Off , Love from India

[@davudazeri5890]

Great explanation in 5 minutes. Thx a lot dear Jeremy

[@ibrahimmassad7341]

The legend, straight to the point and simple as always

[@alphamale4292]

Jeremy never fails to amaze me.

[@cbtnuggets]

You are very welcome!

[@WicksBF]

Seriously, just awesome. Thank you Jeremy, I think I'm armed to pass my CCDA now. Keep up the amazing work! :]

[@WicksBF]

Thank you so much Jeremy! I had a bunch of questions on OSPF areas for my exam and I managed to pass by 12 points. You are THE MAN!!! 😆❤️

[@martink2875]

CCNA I don't fear you no more, I've Jeremy on my side!

[@mehradfarahani7471]

after 8 years , still the best....

[@Wilson-cn7yu]

this video save my life......reading 30 pages in the text book still hardly understand why those are being use

[@amrita7444]

Awesome👏🏻👏🏻👏🏻👏🏻 i revised my lsa and area knwledge in 5 mins

[@greetingcanada6202]

Awesome man! That was the fastest and the best. I listed a few video to go through all, but this one was enough.

[@elem3ntsOFmyLIf3]

Here's the reason why you are my favorite instructor. Video's over; you can breathe now :"))"

[@wally19]

oh man i had to read and watch these videos 3 times in order to understand Areas and LSA types.

[@bartman9140]

Thank you Jeremy for the wonderful explanation. Btw, I just passed CCNA 1st August 2022. God bless you.

[@RussFoster]

Best OSPF video ever. Nice job.

[@JaredHoush]

That was amazing. _I_ need a deep breath after that. Thanks!

[@vivekrkatti]

Shit! You burnt through pages and pages worth of material in minutes! Loved it. Only, going to hit replay button several times to grasp all of it! :P

[@anonymously_me1803]

Right!

[@ohadelias1796]

CBT Nuggets guys are GENIUS!

[@patrickgosselin9756]

Thank you for being your amazing self as always.

[@MikeAW2010]

Basically we redistributed and summarized about 5 days worth of Cisco knowledge into 5 minutes. Now thats what I call route learning summarization ;)

[@antolintxit]

great video! of course u must have a good knowledge already to fully understand this video, but it is a great way to quickly remember all about OSPF area and LSA types. AWESOME

[@jjenko6366]

wow you really did a service for humanity friend. excellent review

[@davidaraya5527]

I hope one day I can shake Jeremy's hand and thank him

[@chinodemiguel2]

Jeremy you are the MAN! i'll bookmark it ...

[@mohanayare]

@Jeremy, Simply awesome....areas and LSAs ...so easily explained,in such less time...!!!

[@veerabsc]

Tonnes of info about LSA Jeremy!!!! Awesome 👏

[@cbtnuggets]

Glad you liked it!

[@MrShark731]

I will subscribe to cbt just because of Jeremy

[@sharmanick1]

Pure GOLD !! thanks Jeremy !!

[@edwardyeryfernandez]

Excellent explanation on OSPF LSA topic

[@abduleid3463]

Very well explained, thank you Jeremy

[@Karlsmarten]

Really Fast, nicely explained and straight to the point. I liked it alot, thx.

[@carlaboujawdeh]

I wish everyone give a training like you do fast intresting good job

[@wairisson]

We need a serie only about OSPF just like BGP, it is a very complicated protocol and awesome.

[@cbtnuggets]

Wairission, thank you for the comment and training request. Jeremy's Cisco CCNA Labs: Cisco for the Real World training course goes into OSPF in detail in 3 different Nuggets: cbt.gg/18lYcqf. Jeremy also discusses BGP in detail in his Cisco CCIP BGP training course: cbt.gg/1f0vehg

[@wairisson]

I mean an exclusive serie about OSPF, just like the awesome BGP series.

[@cbtnuggets]

Wairisson Gomes Thanks for the clarification. Your request has been noted but we recommend formally requesting a training course on the CBT Nuggets Forum here: cbt.gg/18wNTfS Thanks for the request.

[@romonewatson341]

awesome! i was struggling with this topic, went through many videos but this one is perfect.

[@diegocosci]

Amazing explanation in record time!

[@cbtnuggets]

Glad you liked it, Diego! Thank you for the kind words.

[@crewmagnum1]

Super awesome video. Thanks for all you and the team at CBT Nuggets do. I hope to take my CCENT2 exam within the month. I have been beating my head over an OSPF question for a while now, and am hoping you, or any viewer, can offer some clarification. Assume R2 is the ABR between area 0 and area 10. Router 5 is the neighboring router in area 10, and is the gateway to a range of subnets, from 10.1.0.0/19 to 10.1.54.0/24, that need to be summarized. Instead of configuring the "area 10 range 10.1.0.0 255.255.192.0" command on R2, why can't I just summarize the networks using the "R5(config-router)# network 10.1.0.0 0.0.63.255 area 10" command to advertise the summary? I have actually done it successfully in GNS3. I'm sure there is a reason; I just can't figure out what it is. Thanks a ton in advance! :0)

[@btharvey92]

This is a fantastic video, as you said at the beginning of the video its such a tough subject but this video has made it easy to learn! Thanks :)

[@cbtnuggets]

You're welcome!

[@jrfuller9126]

In 5.5 minutes covers the types of LSA's including the OSPF "Ninja" OSPF type 7 LSA's on an NSSA.

[@rajvidesai]

You're the best Jeremy!

[@eleazarberrios740]

THE BEST OSPF VIDEO!

[@nishantparepalli3731]

Two words.. clear and concise.

[@dominickmedina7618]

Lmfaooooo "Eh they're really type 5's." 😂😂😂😂 Great work on the video, impressive presentation.

[@rougearlequin]

Awesome explication! OSPF areas made simple.

[@jimboelterdotcomm9153]

This was extremely helpful. Thank you!

[@Kahuja23]

got to admit it was fast!!! but indeed good work. Keep it up!!

[@wgdejong]

Great explanation, best seen so far.... Thanks.

[@nibelmijar1746]

Excellent! Works perfect as a refresher!

[@georgina8950]

Great Jeremy! It's the best explanation I've ever watched!

[@hackerbradj]

Thank you for the concise and clear explanation!

[@BattulgaTsogbadrakh]

THIS IS SO AWESOME!!!!

[@vez1985]

Jeremy is a legend!

[@MrAeolas]

Jeremy's breath timers are misconfigured ! Keep up the awesome work Jeremy..

[@rahul_vasishtha]

thanks a lot Jeremy, you always rock👌👌

[@WikiSteve]

The ninja explanation was priceless. =)

[@PAPYSHURA]

Holy Cow ! Best explanation I've seen so far !!!!!!!!!!!!

[@gareth82]

Breathe Jeremy, Breathe :)

[@kumaramardeep74]

Excellent in short !!!

[@leonardobascope6492]

Best explanation ever!

[@DGaller85]

Good work! Very useful as a refresher

[@mihaidogaru9938]

Amazing video, died at the "Huh, they are really Type Five"

[@xDeehz]

fast to the point , good job!

[@lucas93177]

Wow dude you got talent!

[@singletakecovers9740]

hmm. I understood as I followed along, but I´m going to have to watch this one a few more times.

[@cvjones009]

Amazing explanation. Thank you!

[@thikyoskinner3389]

I love you Jeremy!

[@muhammad.rafi2012]

Fast but still understandable, great job Jeremy, i wish you work on security side again...also, would you cover LSA 8 though 11 in your upcoming series ?

[@dgilvani]

Clear as mud!!!