OSPF Explained | Step by Step

[@duskears8736]

The official Cisco coursework for this topic is so wordy and obtuse I really must thank you for posting this video. You explained in 13 minutes what Cisco failed to explain in 15 minutes and several pages of dense acronym-laden text. You are the real MVP

[@Certbros]

Thank you! Sometime it just takes a different point of view to get a good understanding.

[@adrianavargova]

@@Certbros Exactly. I have my CCNA exam and still struggle with some things. Meaning that I am not going back to those Cisco texts :((( Thank you. It was short and precise.

[@saic3110]

@@Certbros i

[@victorpolanco2192]

I've watched about 3 videos regarding the same topic and this is the only video/animation that actually made sense. Great job at explaining a difficult topic in such a simple way! I'm impressed. Thank you!

[@Certbros]

Glad the video helped Victor. This stuff can get pretty confusing.

[@darnellg8599]

This video was absolutely phenomenal! And the joke at the end was priceless.

[@Certbros]

Haha! Thanks Darnell. Glad you liked it.

[@AirsideSky]

This explanation is so simple and clear you can easily understand even if there are a lot of terms to remember. Awesome tutorial!

[@nikolayshakin1104]

This is the most useful and explanation of OSPF, that is absolutely unbelievable for 13 minutes video. Every word said bears only important information and nothing superfluous, especially rooter =)

[@NoorAnomaly]

Thank you! I love you videos, clean and simple to understand. There's only so much reading I can take in a sitting! 💖

[@Certbros]

Haha! I know the feeling!! Thanks

[@marcasr]

Read a lot of recommended books on this topic and also watched a lot of videos.. This one has stuck with me for its simplicity and how well you explain the protocol.. Using some cisco white papers to lab this up in EVE-NG and referring back to this video gave me my "Aha" moment... Great stuff on the channel keep it up.

[@Certbros]

Really glad to read this helped it click for you! Keep up the great work Marcais 🔥

[@FoysalGoniChowdhury]

You high quality Learning Video, I was 2002 year CCNA, CCNP, Router and Switching , now revision. Again.. Thank you so much for your Cisco Videos.

[@Certbros]

Thanks! Great to hear this videos are helping you brush up on your networking skills.

[@srpotato2534]

I read both the Cisco and Juniper explanation about this process, I couldn't understand it until I watched this video. Thank you so much for preparing me for my first job interview for networking!

[@birarasitotaw6459]

I love his explanation on OSPF and Spanning tree protocol!

[@Certbros]

Thanks Birara!

[@vimukthisineth3490]

This is what I call effective knowledge sharing. Very easy to understand. Keep up the good work.

[@Certbros]

Thanks Vimukthi!

[@hardwiired]

Thanks for the video!! My college professor has just decided to make his own CCNA assignments with very vague instructions. This has helped!!

[@Certbros]

Glad this helped Ethan!

[@williesolomon614]

Yes. You' ve simplified OSPF in a very impressive explanation. Thanks for sharing your very clear video tutorial.

[@Certbros]

Glad you liked it! Thanks for viewing 👌

[@anthonybostock]

If this guy says rooter one more time I'm going to become a plumber

[@Certbros]

Haha! Just wait until I start talking about data, processes and status!

[@underratednerd8259]

Anthony Bostock lol!

[@AhTu1306]

Lol

[@paulgutiereziii4792]

My brother had the right idea, he has his own plumbing company and is doing great. lol !

[@TheOriginalProfG]

Hahaha. For once there is a person who is using the CORRECT pronunciation. Route not Rowt.

[@_aibeats]

Those 13 minutes saved me 13 hours!! Thanks a lot .

[@Certbros]

Haha. Thanks Rafiul

[@datht]

This video is just better explained than the Cisco texts & videos itself. Thanks so muchhh

[@ayazbandali]

It was a great informative video that can help in answering cisco exam questions. Thank you. BTW, we all know rowter or Rooter...at the end of the day it is ROUTER :)

[@Certbros]

Its pronounced ROOTER 😂

[@scottsiler2843]

@@Certbros C'mon, y'all add a 'u' in honour and colour but take it out in roUter? ;-) Thanks for the video, networking is a *lot* of information, and some of it is pretty dense until you unpack it and wrap your head around it...this vid was easy to understand!!

[@АндрейКозырев-з2ш]

Best explanation video that I've seen so far. Good job.

[@Certbros]

Thanks!

[@HR-fc3bt]

OSPF explained in the best possible way.

[@Certbros]

Thanks!

[@INIOBONGUDOFIA]

Best use of 14mins - Excellent stuff!

[@JeremyShales]

Great explaination, much easier to understand than Cisco's book for my class.

[@mohamedattouchi4834]

Your videos are just like telling a story in an attractive way.. keep it up ! love your content

[@Certbros]

Thank you Mohamed! Really appreciate it 👍

[@razeproduction4443]

Fantasticly made! I love how smoothly the diagrams represent the narration. Although, my brain twitches when i hear route pronounced as root in an IT setting 😂

[@jochenstacker7448]

It is merely correct, i.e. British English.

[@loke9868]

the best explanation i have seen so far, great video

[@Certbros]

Great to hear! 👍

[@MrKerol94]

awww a lil bit too late cuz my OSPF quiz was 2 weeks ago.. lulz nevertheless, really appreciate it. It's much, much easier to understand OSPF from your video than reading thick-ass CCNA/CCNP books

[@Certbros]

Ah man! haha. Yeah those books can be challenge at times. Glad you liked the video!

[@deepaksky]

Great and easy explanation. Really happy to see you are back with more videos. Please do a video on subletting. thank you.

[@Certbros]

Thanks man! More videos coming and subnetting is definitely on the to-do list

[@JaiSharma-et6dr]

Please make a video on BGP and IS-IS

[@tcode3564]

I was send here by my teacher XD

[@donnyrap]

Best comment xd

[@Certbros]

Love it!

[@ONLYSATORO]

Luckily cuz ours don't 🙂

[@anarosie]

same 😂

[@nelboybosque8906]

glad that you are back. some of your videos helps getting my CCNA

[@Certbros]

Thanks man!

[@codethemonkey]

Explained better than my professor at university managed to do. Thanks

[@Certbros]

Happy to help!

[@Mahadonation1]

thanks mate, this visual step-by-step explanation has been so valuable

[@samira.malsharee7028]

Brilliant. THANK YOU SO MUCH for this well illustrated video. love it and became a big fan.

[@Certbros]

Thanks Samir 👍 Really appreciate it!

[@caseysermons6293]

Great explanation of the steps to form a neighbor relationship

[@Certbros]

Thanks Casey!

[@frtzacdse]

Simple the best! Clearly and helpful videos! Thx CertBros!

[@cmillett85]

Great video! Made me laugh at the end. I plan on getting my CCNA in the spring of next year. Thank you so much for helping on my journey to it.

[@Certbros]

Thanks Chris! Good luck with your studies!

[@brianconner1212]

Did you do it?

[@cmillett85]

@@brianconner1212 No, not yet!

[@vaib.shfilms]

The best video on OSPF on youtube period!! Thank you Certbros.

[@generalgyan8705]

Very clean video and easy to understand,upload all ccna videos sir

[@Certbros]

On it

[@asgua5224]

BRO SAVED ME FROM FAILING THE EXAM

[@eddie-dtx]

Awesome video! I understand OSPF better than ever after watching this tutorial. Also I hit like but "Rooter" had a lot to with it LMAO! Cheer's mate

[@Certbros]

Haha thanks Eddie

[@javlonnurmatov422]

really cool explanation for seniors

[@Certbros]

Thanks Javlon!

[@Vintoriez]

I like it, commented and subscribed (all notifications). Thanks, best explenation based on about 10 youtube clips from different channels!

[@theconfusedchannel6365]

Very nice video. Crisp explanation with no fluff. Thanks a lot.

[@Certbros]

"No fluff" haha love it!

[@RafaThomaz]

Thank you for the video. I would be great to see you guys explaining BGP too

[@michaelsamuel5354]

Really nice explanation on OSPF , was straight forward and easy to understand

[@Certbros]

Thank you Michael!

[@punkeyengineer]

HAHA Dude , I was so fucken mad at you earlier, but you cajoled the situation towards the end of the video . Great work by the way!

[@mariamfirdous8456]

you are my fav teacher

[@Certbros]

Thank you Mariam! If only my School teachers could see this comment 😂

[@edwardv4546]

Thank you. I’m going to watch this a few more times until it completely clicks.

[@Certbros]

Good luck Edward. You'll get it! 💪

[@m-electronics5977]

12:18 where the R1 knows the link costs of links behind R4 f.e. ? Is that information in the LSA?

[@winniethedictator2777]

This is so concise and helpful. Thank you!

[@bigdaddy910]

I'm currently in vocational school as an IT technician and your video really helped me out! thanks

[@Certbros]

Thanks man! Glad it helped you out!

[@TheFriedLife]

Hello Sir..loving ur videos..kindly make more this kind of videos on ospf lsa types, ospf troubleshooting.. thanks and best wishes

[@edsonpaz7537]

I loved the end of the video !! :D Thanks for the explanation.

[@ZikrulCahyadi-g5k]

PCR-23TIF-Zikrul Cahyadi Tnks for This Lesson

[@bonniemunene5163]

Am liking every comment here because certbros is really teaching good stuff here . nice channel

[@Certbros]

Thanks man!! Keep those likes coming!

[@ITSAMN88]

thank you for this easy and simple explanation. keep going 👍🏼👍👍

[@Certbros]

Thanks Amir!

[@Atlastheyote222]

These videos are better than my actual lectures.

[@Certbros]

Thanks Callum! Happy to help you out.

[@The_Generalgr]

What the f*** is a rooter HAHA (Awesome video by the way, very informative and very easy to follow)

[@XYZ-kw7rj]

In which country they say 'rauter'?

[@The_Generalgr]

@@XYZ-kw7rj It depends on how "rauter" is pronounced lol, I mean we say router in the US (Chicago), but maybe the people in the south with an accent would say "rauter" haha

[@manishkapri2205]

lol :)

[@Certbros]

Thanks man!

[@intensenex]

The brits ofcourse! Ain't nuthing wrong with that

[@65gtotrips]

Just remember ‘IT ELF’ > Init > Two-Way > Exstart > Exchange > Loading > Full

[@Certbros]

Great trick! Thanks.

[@zanamasuod7886]

Your videos are very helpful very well illustrated hope you have more videos, especially on CCNA course.

[@Certbros]

Thanks Zana! More video are in the works.

[@farrukh_taqveem]

Loved it .Way more good than i expected

[@Certbros]

Thanks!

[@gejin]

Very comprehensive tutorial!

[@wmuhken]

clean simple and easy to follow and understand. I love the Videos keep up the good work

[@Certbros]

Thanks for the comments Wilfred! Good to hear your liking the videos!

[@jaydplus1046]

i want to know how routers and networks work in a network and into the www. this video is a good start. thanks for explaining.

[@Certbros]

Thanks Jay!

[@kashishsingh3215]

Very well illustrated. Thanks mate

[@Certbros]

No problem!

[@apartfrom925]

One good video about ospf. Good explanation.

[@Certbros]

Thanks man! Appreciate it.

[@azzamfarras9019]

PCR-23TIF-Tri Azzam Farras Ruslani Izin Tnks for This Lesson

[@matteoiorio5288]

Very well explained, thank youu

[@logicalnetwork1611]

Best presentation I have come across. I dont know the regular use of rooter:)

[@Certbros]

🤣 thanks. Good to hear you liked the video! Thanks for the comment.

[@logicalnetwork1611]

CertBros you sound surprised 😀

[@1337-Ramiel]

Please make a video for BGP and MPLS

[@Certbros]

Will do soon Ramiel!

[@dakshinahettiarachchi8628]

Yes.. please make video for BGP and MPLS... Highly appreciated this kind of crystal clear explaination.. !!! No words.. Thank you..!!

[@rouf46]

Awesom video, in future if you are adding any no like part 1,2,3 then it would be easy for me to see the new uploaded videos one by one

[@sidiousesshek]

I hope you have a whole ccna series?

[@azzamfarras9019]

PCR-23TIF-Azzam Farras Ruslani Izin Tnks for This Lesson

[@Ultrasize]

Well, this is a perfect background to see how dirty my monitor really is...

[@UzairAli001]

This color is also best for checking if monitor has dead pixel

[@Fregmazors]

Same here. That blue background came up and I said, "Oh yeah, I smashed a fruit fly there a month ago."

[@yancearifiyanto3701]

Beautifull animation. Can i know what is the software to build it? Thank you

[@belferroummohammed8006]

Sooooo wonderful things realy its a pleasure to watching. This kind of vedios i wish you do more information like that .

[@Certbros]

Thank you! Great to hear you liked the video. More to come.

[@themistoclesnelson2163]

DUDE! YOU MADE IT TO 100K!!!

[@Certbros]

YES!!! It happened a couple of days ago and it was confirmed today! Thanks for your support, it really means a lot.

[@jaspreetsinghjhajj5617]

you help me to pass my ccna, thank you so much

[@Certbros]

Awesome congrats! Welcome to the club!

[@raviminnikanti2577]

Nice video. If possible please also upload lecture on BGP protocol.

[@rameezkhan8233]

Best explanation of OSPF

[@Certbros]

Thanks Rameez!

[@MultiAddy]

very good explanation wish you make videos for other topics too including ISIS MPLS etc.

[@Certbros]

More videos on the way

[@TEGUHALAZIZUL]

CR-23TIF-Teguh Al Azizul Tnks for This Lesson

[@lucas911611]

Amazing way to explain OSPF step by step

[@Certbros]

Thanks

[@pop1361993]

This might be old video but it really helped me understand what is OSPF... thank you.. I hope whatever names you mentioned are actual words used in real time. I watched the next vid as well.. multi area and its really good. I didnt understand EIGRP though... ill skip it for now. I was checking for BGP but i dont see that vid anywhere :/

[@Certbros]

Thanks Jagadeesh! Great to hear the videos helped! Which part of EIGRP did you struggle with? I don't have a BGP video yet but it's on my to-do list!

[@pop1361993]

@@Certbros oo didnt expect reply as its old one~ i didnt understand that EIGRP calculations stuff... I wanted to get overview, watching couple of times would make me understand and need to compare with OSPF, then i can get better idea. However, since I dont have hands-on(as im learning using my imagination from watching videos and docs), its little hard to get those stuff. I am waiting for for the BGP vid though~ tnx for vid.. not just the explanation but the presentation is also good~ I could only be able to give the explanation without that such good presentation

[@Certbros]

Thanks Jagadeesh! Glad you liked it. Keep going, you'll get there! Are you using packet tracer for labs? Its completely free.

[@pop1361993]

​@@Certbros thank you~..... I watched few other videos and happen to see people explaining in packet tracer.... that is when I found out there is a simulator that I can play with... Need to go through tutorials on how to use it... my last interviewer gave feedback that my knowledge on SDWAN is good but not much with n/wing concepts.... ill be stalking your channel btw~~ ^ ^

[@Certbros]

@@pop1361993 Packet tracer is pretty simple once you get used to it. I need to make some tutorials myself. It's great your taking the feedback from your interview and learning this stuff. Good luck with the studies 👍

[@ADJ161996]

You're the best CertBros!

[@HangoutCouples]

Awesome. Keep doing more videos like this. Very informative.

[@Certbros]

Thanks Shijo. Working on more videos now

[@tubeyou6387]

Excellent video. I'm going to watch this every day.

[@Certbros]

Everyday?! Haha thanks!

[@NadeemKhan-oe7uk]

Thank You - Great Break down of processes and explanation.

[@Certbros]

Thanks Nadeem. I really appreciate it! 👌

[@NadeemKhan-oe7uk]

@@Certbros There are about 78 people who do not want to continue Network careers.

[@Certbros]

🤣🤣

[@DonnieDeponte]

Appreciate the detailed breakdown! I need some advice: My OKX wallet holds some USDT, and I have the seed phrase. (alarm fetch churn bridge exercise tape speak race clerk couch crater letter). What's the best way to send them to Binance?

[@siddharthtadury5612]

Beautifully Explained.

[@Certbros]

Thanks Siddharth!

[@MuthiaAdeisFitria]

PCR-23TIF-Muthia Adeis Fitria Tnks for This Lesson

[@THEWolf-bz6ot]

so simple and so clear thank you

[@Certbros]

No problem!

[@Stellzilla]

3 minutes in and I think the roota counter is already up to at least 50

[@coursautodeskrobotstructur3369]

Very well explained. I loved it

[@cthoadmin7458]

Newbie question: is link speed the best way to determine cost? What if a particular link is already carrying heavy traffic? In that case another route might be slower in an absolute sense, but if not congested would be the best route at that particular time. Maybe something like dynamic cost is required, based on the flow of traffic through the link.

[@ori61511]

12:03 but how does R1 know the cost for R4 to R5?

[@TheSecurityAgency]

Rooter: A Methodology for the Typical Unification of Access Points and Redundancy. Update : the joke alone at the end definitely deserved a like . lol Excellent explanaton.

[@Certbros]

HAHA 😂 Glad I able to redeem myself!

[@paulrupertofficial]

Enormously helpful - thankyou.

[@Certbros]

Thanks Paul

[@trungduong8225]

took me 14 mins to find out what rooter is, but great vid btw

[@viktorkokhan1629]

Thanks a lot. Amazing content. very helpful. Please continue creating content.

[@semtex6412]

on 5:28, when router 1 moves into a 2-WAY STATE, was it TRIGGERED by the fact that upon receiving router 2's hello, it sees itself as R2's neighbor?

[@Certbros]

That's exactly right 👌

[@jaronprovidence9484]

dude, you are awesome.....thanks for the clearly explained video.

[@Certbros]

You're welcome. Thanks Jaron!