OSPF Explained | Step by Step
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- Опубликовано: 29 сен 2024
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In this video we're going to take a look at OSPF.
Open Shortest Path First (OSPF) is a widely used and supported routing protocol.
It's an interior gateway protocol (IGP) meaning it been designed to be used within a single autonomous system. It also falls under the category of Link-state routing protocols.
Routers running OSPF learn about the enter network in order to create routes. They do this by flooding Link State Updates. There are three steps to the process.
Become neighbours - Two routers running OSPF on the same link agree to form a neighbour relationship
Exchange database information - The neighbouring routers swap their LSDB information with each other
Choose the best routes - Each router chooses the best routes to add to its routing table based on the learned LSDB information
#ccna #cisco #networking
I was send here by my teacher XD
Best comment xd
Love it!
Luckily cuz ours don't 🙂
the best explanation i have seen so far, great video
Great to hear! 👍
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
Haha thanks Eddie
you help me to pass my ccna, thank you so much
Awesome congrats! Welcome to the club!
13:15 where R1 knows the cost of the not directly connected links? Does R1 learns that from the Others? Oder make a Speedtest?😅
nice ands simple explanation! . by the way what the tool used for illustration?thanks certbros
Thanks! I use After Effects and Premier Pro
Very Nice explanation of OSPF but not fully covered on this Video.
if DR and BDR is elected, isnt the router with the broken link only floods the update to the multicast address of all Designated Router which is 224.0.0.6. Then after the DR receives the update, it floods it to the multicast address for all OSPF Routers which is 224.0.0.5?
Thx man !
If this guy says rooter one more time I'm going to become a plumber
Haha! Just wait until I start talking about data, processes and status!
Anthony Bostock lol!
Lol
My brother had the right idea, he has his own plumbing company and is doing great. lol !
Hahaha. For once there is a person who is using the CORRECT pronunciation. Route not Rowt.
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
Thank you! Sometime it just takes a different point of view to get a good understanding.
@@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.
@@Certbros i
What the f*** is a rooter HAHA (Awesome video by the way, very informative and very easy to follow)
In which country they say 'rauter'?
@@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
lol :)
Thanks man!
The brits ofcourse! Ain't nuthing wrong with that
Thank you! I love you videos, clean and simple to understand. There's only so much reading I can take in a sitting! 💖
Haha! I know the feeling!! Thanks
Well, this is a perfect background to see how dirty my monitor really is...
This color is also best for checking if monitor has dead pixel
Same here. That blue background came up and I said, "Oh yeah, I smashed a fruit fly there a month ago."
Beautifull animation. Can i know what is the software to build it? Thank you
Just remember ‘IT ELF’
> Init
> Two-Way
> Exstart
> Exchange
> Loading
> Full
Great trick! Thanks.
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 :)
Its pronounced ROOTER 😂
@@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!!
This video was absolutely phenomenal! And the joke at the end was priceless.
Haha! Thanks Darnell. Glad you liked it.
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!
Glad the video helped Victor. This stuff can get pretty confusing.
Please make a video on BGP and IS-IS
3 minutes in and I think the roota counter is already up to at least 50
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.
Really glad to read this helped it click for you! Keep up the great work Marcais 🔥
This explanation is so simple and clear you can easily understand even if there are a lot of terms to remember. Awesome tutorial!
12:18 where the R1 knows the link costs of links behind R4 f.e. ? Is that information in the LSA?
I love his explanation on OSPF and Spanning tree protocol!
Thanks Birara!
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
Ah man! haha. Yeah those books can be challenge at times. Glad you liked the video!
This is what I call effective knowledge sharing. Very easy to understand. Keep up the good work.
Thanks Vimukthi!
Thanks for this. I think I dig OSPF. Fucking hate EIGRP though. Not your video, just the protocol ^_^
Haha thanks Michelle!
Please make a video for BGP and MPLS
Will do soon Ramiel!
Yes.. please make video for BGP and MPLS... Highly appreciated this kind of crystal clear explaination.. !!! No words.. Thank you..!!
Do you even cert brah?
84 Dee arrs and Bee Dee arrs disliked this video... don't be a bee dee arr.
🤣
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 =)
Very well explained, thank youu
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!
thank you for this easy and simple explanation. keep going 👍🏼👍👍
Thanks Amir!
Brilliant. THANK YOU SO MUCH for this well illustrated video. love it and became a big fan.
Thanks Samir 👍 Really appreciate it!
Great explanation of the steps to form a neighbor relationship
Thanks Casey!
Best explanation video that I've seen so far. Good job.
Thanks!
What is a rooter?
How to choose the best path if the routers use the same type of interface? They have the same cost.
If two or more paths have the same cost, OSPF can load balance the traffic.
why you sound the word ROUTER as ROOTER !! Very funny- Is it british or Indain English ?
It's how us brits say router 😂
@@Certbros Sorry Sir, you have to go with the flow !
BRO SAVED ME FROM FAILING THE EXAM
Old mac donald had a farm O - S - P ... wait wrong video
🤣🤣🤣 this got me more than it should have!
LMAO. The end was funny. You Brits. lol Well done!
Haha Thanks Deshawn!
Heyho, any plans on extending on OSPF with MultiArea OSPF? Greetings
Yes!!!! Next video will be multi area I think.
you are my fav teacher
Thank you Mariam! If only my School teachers could see this comment 😂
What is a rooter? Don't Allow Idiots To Explain Everything Like Fools. ... Down / Attempt / Init / Two-Way / ExStart / Exchange / Loading / Full.
Very clean video and easy to understand,upload all ccna videos sir
On it
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?
That's exactly right 👌
Sir, is the CCNA syllabus upgraded after 12 months? I want to learn CCNA now but I will do the job after 3 years (after completing BSc). What should I do at this moment? Please let me know
After passing the CCNA it is valid for 3 years (whether or not Cisco update the syllabus) after that, you will need to renew the CCNA by either retaking the exam or taking a higher one.
If you want to learn now the go for it!
Wtf this video is in my recommendations 😂 nice info
OSPF - link state
RIP - distance vector
note: RIP uses the concept o split horizon to prevent routes from being sent back to neighbouring routers
Nice video. If possible please also upload lecture on BGP protocol.
*Highest OSPF Interface priority.ruclips.net/video/kfvJ8QVJscc/видео.html
Rooter protocol 👍🏻
here's the pronunciation 'dilemma'. How do you say these two words:
"Route 66" (the highway)
"Network Router"
Roota old boy, I say! Do you pronounce root "route"?
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
very good explanation wish you make videos for other topics too including ISIS MPLS etc.
More videos on the way
I think you forgot to tell, that OSPF works on the Dijkstra algorithm
Please make a video on EIGRP and also on OSPF LSA.
100% doing this!
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.
Thanks! Great to hear this videos are helping you brush up on your networking skills.
Dumb question: is this ospf v2?
Not a dumb question. Yes, this is for version 2.
Thanks for the video!! My college professor has just decided to make his own CCNA assignments with very vague instructions. This has helped!!
Glad this helped Ethan!
Your videos are very helpful very well illustrated hope you have more videos, especially on CCNA course.
Thanks Zana! More video are in the works.
Great and easy explanation. Really happy to see you are back with more videos. Please do a video on subletting. thank you.
Thanks man! More videos coming and subnetting is definitely on the to-do list
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.
HAHA 😂 Glad I able to redeem myself!
nice explanation
Thanks!
Those 13 minutes saved me 13 hours!! Thanks a lot .
Haha. Thanks Rafiul
well explained.
Thank you!
Haha i did question myself about the rooter word LOL
With DR and BDR does it mean we are more likely using centralised routing system?
Thank you. I’m going to watch this a few more times until it completely clicks.
Good luck Edward. You'll get it! 💪
By any chance can I get these slides please
Sorry, this video wasn't made with slides.
They're called routers. Not rueters.
That's what I said... routers 😂
good video just one queston what happens in ospf when router goes down ?
Sooooo wonderful things realy its a pleasure to watching. This kind of vedios i wish you do more information like that .
Thank you! Great to hear you liked the video. More to come.
Auto Subtitle also doesnt find his pronounciation "ruto"...😂
Explained better than my professor at university managed to do. Thanks
Happy to help!
only DR is starting talking sending Hello message? or any router can start and send hello message?
Really nice explanation on OSPF , was straight forward and easy to understand
Thank you Michael!
I thought the reference bandwidth was 100 Mbps?
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 😂
It is merely correct, i.e. British English.
This awesome do have a full playlist for ccna 200-301
Working on it now!
dude, you are awesome.....thanks for the clearly explained video.
You're welcome. Thanks Jaron!
One good video about ospf. Good explanation.
Thanks man! Appreciate it.
thanks very good just too many adds
Thanks for the feedback. Glad you like the video. I just let RUclips place the ads.
Thanks you
Thank you for the video. I would be great to see you guys explaining BGP too
Yes. You' ve simplified OSPF in a very impressive explanation. Thanks for sharing your very clear video tutorial.
Glad you liked it! Thanks for viewing 👌
Is there a transcript of this
Such a great video. Thank you!
Thanks!
It's pronounced router NOT router!
I think you'll find its router
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.
Thanks Chris! Good luck with your studies!
Did you do it?
@@brianconner1212 No, not yet!
does anybody knows the name of the animation tool used for these videos?
great explanation, do you videos for every topic for CCNA?
Thanks! More videos comming
really cool explanation for seniors
Thanks Javlon!
Your videos are just like telling a story in an attractive way.. keep it up ! love your content
Thank you Mohamed! Really appreciate it 👍
Well DONE if you want to refresh what you know.
Thank you
Thanks!
like your video did you have any full video for ccnp switch, route and tshoot
Thanks Wale! No CCNP videos yet
Awesome. Keep doing more videos like this. Very informative.
Thanks Shijo. Working on more videos now