I found this channel randomly; I am preparing a few CCNA topics for the interview and this channel is very helpful for me. it is a channel where I shortly get all info. Thank You CertBros.
I am a computer Science and Engineering student, I stumbled across your video today, and this is hands down the best explanation I've ever seen!!! Thank YOU! This was AWESOME!!
What is great about your videos is that you explain the technology without jumping into configuration, this way we can understand what is going behind the seans< also your way of explanation is wonderfull, you are a great teacher.
I'm currently learning this topic for taking my CCNA soon and man your breakdown is so damn helpful its unreal. I took me hours to just try and understand OSPF. But you video presentation does this so well i understood it. You do a damn great job man. COme back soon with new stuff.
Great explanation. I wish you had one about the different Area types, that is the hardest OSPF aspect, for me at least, to understand and grasp and even to begin using it in the real world on which type you would use when and why in a practical sense.
Great video. I think there are some things that should be revisited. A) there always needs to be an Area 0. B) Other areas MUST have at least 1 router in Area 0. C) Areas dont nessicarily follow phyiscal or logical connections, but they can and sometimes they should.
Additional Notes aside from the description given above. Backbone Routers - This are routers that are in or partially in the backbone area. ABR ( Area Border Routers ) - Routers that connect to more than 1 area. Internal Routers - This are routers that are in a single area but not the backbone area. ASBR ( Autonomous System Boundary Router ) - This are routers that are connect to other non-OSPF routing protocols (i.e EIGRP or BGP)
So the main problems of using single OSPF in multiple areas: 1. A lot of information of LS(including useless information) will occupy the disk space of router 2. Hard to search a piece of specific information in such huge LSDA 3. Updates are flooded throughout all the network occupying a lot of resources 4. Summarizing all the reasons above, using single OSPF in multiple areas will occupy a lot of resources (including disk space, bandwidth, power, etc.) Backbone area: every other area must join to the backbone area. ABR: Area border router, whose interfaces in two or more areas and can summarize some specific area LSDB(e.g. 10.0.0.1+10.0.0.2-->10.0.0.0/30). ASBR: Autonomous system boundary router, connecting to other non-OSPF routing protocols such as BGP
Greetings Cert Pros, Excellent Training on OSPF! I will be continuing on with more on OSPF, Subnetting, VLANS and CLI. Are the audio transcripts available for download for each training module? It helps a lot with note taking. I fancy a few cups of tea and biscuits while watching the training. :0) Cheers! Thank you -Jeff Abrew
One basic question. Do Backbone area contains just only one router? If not, other routers in Area 0 which may not be communicating outside, will they be also considered Backbone routers?
Great videos, watched of em. Would you plz do a similar graphical video on other routing protocols such as RIP, RIPv2, EiGRP and explain the administrative distance, administrative vector and link state. Thank you
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
Do not thank me for watching
*I thank you* for letting me watch your amazing videos without paying anything
*I thank you* for watching and for your comment! Thanks man!
Exactly!
I re-comment to let you know that I got my CCNA R&S!!
Your videos really helped me to get it!
Great work man! Welcome to the club!
I found this channel randomly; I am preparing a few CCNA topics for the interview and this channel is very helpful for me. it is a channel where I shortly get all info. Thank You CertBros.
I am a computer Science and Engineering student, I stumbled across your video today, and this is hands down the best explanation I've ever seen!!! Thank YOU! This was AWESOME!!
Wow, thanks! Great to hear you liked the video! Good luck with your studies.
What is great about your videos is that you explain the technology without jumping into configuration, this way we can understand what is going behind the seans< also your way of explanation is wonderfull, you are a great teacher.
Thanks eedept! Glad you liked the video!!!
I'm currently learning this topic for taking my CCNA soon and man your breakdown is so damn helpful its unreal. I took me hours to just try and understand OSPF. But you video presentation does this so well i understood it. You do a damn great job man. COme back soon with new stuff.
Thanks Ardent! Glad you're getting value from the videos. How is the studying going?
This is still gold, me trying to brush my networking concepts after 3 years now !!
Great to hear it's still helping!
@@Certbros Same here, brushing the basics before the interview... It's Great!!!
Much easier than the previous one on single area OSPF I must say. Thanks for the effort!
You're right. Once you get single area, multiple area becomes much more simple. 👌
Great explanation. I wish you had one about the different Area types, that is the hardest OSPF aspect, for me at least, to understand and grasp and even to begin using it in the real world on which type you would use when and why in a practical sense.
Improved a lot than the very start, and that super boom intro music 🔥
Thanks Mohit! Keeping pushing to do better!
Thanks for the video!! My college professor has just decided to make his own CCNA assignments with very vague instructions. This has helped!!
Proper good Information. Really well summarized.
Thanks Amr! Great to hear.
Best explanation I found on youtube about the subject.
Thank you Jose
The animations are great. We need more videos like this. Would be great if more detail and information is included (LSA types etc.)
Thanks Saim!
What you do with your videos is truly amazing. Really like the explanations.
Man, love your videos. More than what I can expect.
Thank you Omair! Really great to hear.
For visual learners this is incredible, thank you kindly and please have more videos for CCNA and NP, Thanks Bros
Thanks Fadzai! A lot more videos planned!
so glad to see you guys back!
Thanks!
superrrrbbbbbb superbbbbb..mind blowing sir...we want more such videos on OSPF LSA types, OSPF areas..thanks a ton...
Thanks Arijit!
Great video. I think there are some things that should be revisited. A) there always needs to be an Area 0. B) Other areas MUST have at least 1 router in Area 0. C) Areas dont nessicarily follow phyiscal or logical connections, but they can and sometimes they should.
Very good way to get the concepts down. Haven't seen better videos on youtube about or for Cisco/CCNA/Networking
Thanks Christian!!
the guy or guys behind this channel are great no doubt
It's just me! Thank you Yaser 👍
Your videos make "network nerding" very easy for me! An EIGRP video would be nice as well.
Thanks Bryson! EIGRP next
Way of teaching is excellent.. Well done and Keep it up
Thanks Umair!
You create video in such a simple way that it make complicated topics look so simple.
I really want you if you create one such video for BGP too.
बहुत ही बढ़िया भैयाजी। ओएसपीएफ तो बड़ा ही मजेदार है।
Great video. Very well presented, easy to understand explanation. Subscribed based off of this video alone.
Thank you Mathew! Welcome to the channel 😁
Certbros.. Thank you for making life simple for us. Ought to say, it feels as if too good(easy) to be true..
Thanks for the comments Shakil! Keep it simple, the detail can come later.
Extremely precise explanation! I thank you for this content!
You're welcome Alexandre! Glad to gear it helped.
Best explanation of multi-area ospf! thanks!
Additional Notes aside from the description given above.
Backbone Routers - This are routers that are in or partially in the backbone area.
ABR ( Area Border Routers ) - Routers that connect to more than 1 area.
Internal Routers - This are routers that are in a single area but not the backbone area.
ASBR ( Autonomous System Boundary Router ) - This are routers that are connect to other non-OSPF routing protocols (i.e EIGRP or BGP)
So the main problems of using single OSPF in multiple areas:
1. A lot of information of LS(including useless information) will occupy the disk space of router
2. Hard to search a piece of specific information in such huge LSDA
3. Updates are flooded throughout all the network occupying a lot of resources
4. Summarizing all the reasons above, using single OSPF in multiple areas will occupy a lot of resources (including disk space, bandwidth, power, etc.)
Backbone area: every other area must join to the backbone area.
ABR: Area border router, whose interfaces in two or more areas and can summarize some specific area LSDB(e.g. 10.0.0.1+10.0.0.2-->10.0.0.0/30).
ASBR: Autonomous system boundary router, connecting to other non-OSPF routing protocols such as BGP
is there a multiple OSPF instance solution then?
Great content! Very clear and concise, good job guys.
Glad you liked it!
The videos on OSPF are nice and crisp. You should think of adding the different types of LAS video to the list
These explanations make it so simple
Thanks JP! glad you like it 👍
Hey @centbros i just love how you explain any topic. Keep the fire burning man!!!
Thanks Danveer! More videos to come
Again, well explained. I loved it.
Awesome video as always 👍
Thanks Orley! Appreciate it
Enjoyed this series 😌
Greetings Cert Pros, Excellent Training on OSPF! I will be continuing on with more on OSPF, Subnetting, VLANS and CLI. Are the audio transcripts available for download for each training module? It helps a lot with note taking.
I fancy a few cups of tea and biscuits while watching the training. :0) Cheers! Thank you -Jeff Abrew
Excellent Explanation, thanxx again!!!
One basic question. Do Backbone area contains just only one router? If not, other routers in Area 0 which may not be communicating outside, will they be also considered Backbone routers?
Nice one, easy and simple , thanks mate
Thanks
Amazing video man. Please keep them coming.
Thanks Harsh! Appreciate the comments!
Great video, now I feel that I completely understand OSPF. Could you make video explaining BGP as well?
Thanks! I will definitely be making this at some point
really it simplify the protocol and explain it in proper way
Thanks! 👍Glad you liked it.
Thank you very much for clear , concise and wonderful presentation
You're welcome! Thanks for the comment!
Great explanation i just became a new subscriber in your channel
Another really useful video - Thanks.
You're welcome 👍
It is well broken down and easy to understand
Thanks Franklin!
Can one router interface be a part of more than one OSPF areas?
What will happen if one of the router is down? or what will happen if the router keeps on activating and deactivating by an attacker?
liked commented and subscribed, keep those great vids coming!
Awesome thanks!
dude you are the best you British genius
Haha 🤣 Thanks Gavin!
Great videos, watched of em. Would you plz do a similar graphical video on other routing protocols such as RIP, RIPv2, EiGRP and explain the administrative distance, administrative vector and link state. Thank you
Thanks!! This videos are planned. Working on EIGRP next.
Great stuff 👍
Thank you!
Well, that was helpful. Love your videos! Thank you!
Thanks! Glad you liked it!
Great explanation. Thanks.
Amazing work, very helpful, thanks a lot.
Thank you. You're welcome!
Very informative 🖤
Thank you!
just perfect - thank you
Awesome stuff!!! Do you have one about HSRP planned? :D (as a Cisco tech engineer myself, these videos are AWESOME :D )
Thanks! Yes it's 100% on my to-do list!
@@Certbros Awesome! :D These videos are quite useful when you study since they cover the basics (I recently got my CCNA R&S )
Hey man, could you please do a Vídeo about EIGRP?
Working on it now
@@Certbros Thank you! Your explanations are the best on youtube. Keep it up!
Is R1 an internal router too?
Wow... you are just amazing.
Thanks
Thanks so much! Could you please make a video on BGP?
Thanks for the video!!
You're welcome!
Fantastic explanation
Thank you for the great videos
Hello, can you do a video on BGP?
That would be good as well
this video really helps a lot. Thank you
Thanks!
could you please do videos on LSAs and also on Stub area and NSSA for OSPF ??
Will be waiting for you explaining these topics
thanks man that was helpful
No problem at all. Glad you liked it!
Man you saved my life
Thank you for this tutorial
How many routers we can design in a single area???
Very nicely explained
Thank you, your videos are really helpful! :)
Thanks!!!
ty
I like how the Routers get excited whenever they receive LSUs😄😄
🤣
Can you please update bgp?
BGP is on my to-do list after the CCNA 👍
master piece
Thanks!
no CertBros website?
There is but I've put it on hold while I focus on more videos! It will be live soon!
Amazing :D
Subscribed!
Thanks!
Awesome❤
Thank you Saloni!
Give complete course ccna start to network adminatations
Hi Abdi, I have a full CCNA course that I'm working on. You can register your interest using the link in the description. 👍
Like first, then watch!
Thank you!
What is a rooter?
Very well explained thaks
Interesting and Informative
great video
Thanks!
Hi Sir, nice video any idea when can we get for BGP too :)
Thanks, Vinay. BGP is on the list but it will be a while. You will see a lot more content being put up this year.
Thank you again
Video on BGP?
Explain type of lsa and state
thanks teacher its my presentation
No problem
Really nice video.!!
Thanks Diego!
Thanks !!
Great videos
Thanks!
verry helpful content
Thanks