I will never get bored of your courses Keith , just a suggestion can you provide some videos about the new technologies like sd wan, virtualization ...etc Thanks Keith
Thank you Ray for the suggestions. Currently I am focusing most of my RUclips content at the Cisco CCNA level, but will keep your suggestion in the queue as a possibility in the future. Thanks again for the ideas.
I thought for sure at the 50:15 when the music came on Keith would instantly come back with a bow tie and no shirt singing 🎶I'm to sexy- By Right Said Fred🎶!!
Keith, this was an excellent video. I found the historical discussion around frame relay particularly useful. Now the concept of NBMA is very clear. I actually studied frame relay during my network+ course. However the significance of this technology in the context of ospf was never discussed. Thanks again for clarifying this topic.👍
I feel so fortunate seeing your frequently uploads what i'd been wishing for this since I fell in love with networking with Jeremy & your Voices years ago. I hope this is been informative and loved all over and i would like Thank you for reading this :)
Very nice video.. thank you very much keith because i learned a lot from you and jeremy, i've watch all of your video in cbt nuggets which is why i passed my ccna last november. Again thank you very much and more power
Hi Keith, thank you for this video, but I was wondering why is this content not available on the OSPF skill on CBT Nuggets that you had taught. Ironically I went through entire CCNA 200-301 course on CBT nuggets but I dint come across this topic and I had a similar question regarding the OSPF Network types on the exam. Unfortunately I dint pass it the first time and I am taking the test for a second time in October.
Thank you Noel Cutinha for the feedback. In vid 233 it discusses broadcast networks, and the function of DRs on a broadcast network, and in vid 236 it is all about P2P networks that don't use a DR. I am sorry if you missed that, or if it wasn't reinforced properly. My intention was to help you get ready for the certification, and I am sorry I didn't do as much as you needed in those videos.
@@parheliaa please see link below to cisco which will give you more info: www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html
Thank you Tadas for the suggestion. Currently I am focusing most of my RUclips content at the Cisco CCNA level, which does include some OSPF, (but not BGP). I will keep your suggestion in the queue as a possibility in the future. Thanks again for the idea.
Keith , I'm been watching all your OSPF videos , I have one more to go , my question is on broadcast type , doesn't the router function is not to allow broadcast traffic to pass thru the router ? or it makes an exception for OSPF traffic because its not been generated by a node , but by the router ? Thanks
Hi Keith, yes the question was answered yesterday at the live stream , I was not sure if you saw the question a few days ago , so I asked the question at the live stream yesterday .Thanks anyway
Thank you for the question LAWRENCE THAMSANQA. Only enable OSPF on the routers where: Those connected networks need to be shared with other routers You want the router to learn about routes In short, if you have 5 routers, and don't want to use static routes on any of them, then all 5 would need to run OSPF.
Thank you Kwstas for the great question. The election process for DR and BDR doesn't preempt an existing device. Because R1 was already up and running, and became the DR earlier (before R2 was running OSPF), R2 when OSPF was started on that, even though it has a higher router ID, (and even if it had a higher priority value on it's interface) would not push R1 (the current DR) out of the way. Instead R2 saw there was already a DR, and that there was no BDR for the segment yet, and so R2 became the BDR. Excellent question. Glad to have you here.
Hi Keith, Just wanted to say i'm a huge fan and wish i had found your channel sooner. I failed the old CCNA one week before it expired, i was devasted. It took me 8 weeks to even look at CCNA and pick it up again and at which point i found your channel, which i am working through. I wish i had found you sooner. I'm not sure if you are still answering questions about this video , or if someone else can help. Every video you do, i try to copy the topology but build it in in packet tracer. With this i finally figured that i needed to use the router 1941 to be able to have gigabit, serial and fast ethernet ports. However now i have another issue, i cannot configure ip adresses for the fast ethernet ports between r4 and R3 - it just gives you switch options, even though i have also tried enabling ip. Is this not supported by packet tracer or am i doing something wrong? I've googled it and i don't seem to be missing any steps and spent so much time trying to figure this out. thank you in advance
Thank you Wasif, fun idea. At the present time, I am devoting most of my RUclips content towards the associate level, but I will keep those topics in the queue, and perhaps get to those in the future. Thanks again.
Thank you Abhishek for the request. In the new CCNA, EIGRP isn't one of the protocols covered, but it definitely is in the CCNP (professional level) blueprint. I will add that to my list for the future, after I have covered all I intend to for the CCNA level. Glad you are here.
The 4 network Types of OSPF char of yours is really confusing and not really organized. Put down bullettpoints of each 1 and dont make it cluttery. I cant really figure out the 4 network types is Dynamic,Multi-Access,non-broadcast,broadcast or NBMA or Auto neighbor. I had to wait for you do the ip ospf network ? in the CLI.
Thank you Anders. Let me know if this (below) is useful: Broadcast, uses DR, auto neighbors Non-Broadcast, uses DR, manual neighbors Point to Point, no DR, auto neighbors Point to Multipoint, no DR, auto neighbors (for old Frame networks) Point to Multipoint Non-broadcast, no DR, manual neighbors (for old Frame Relay networks) I appreciate the feedback, and your time. Thank you.
@@KeithBarker That is a better overview. I thought I saw it in your slides that something had Dynamic Neighbors, and the 5 network types you wrote to me is does not contain the dynamic neighbors,I guess I must have missed something. Thanks for replying to me with the overview. I know you are very knowledagble Keith and you want to explain things on your own and thats good, but with facts I think it would be great if you have facts that is concise and not so clutterly, atleast for me. I'm writing it down as the video progresses, the things that is important and when it came to the network ospf types it was somewhat not organized enough for me to follow and write down what I needed to know.
Thank you for the question Danial Khan. If there are only 2 devices, and it is ethernet, the default OSPF network type will be broadcast, and there will be a DR by default.
The joy and smile on your face make networking easy going....thumbs up!!!
Thank you rasheed malik!
You Know Keith, everytime i see your youtube lectures, i see the packets moving in front of me. Superb Explanations!!
You Sir are my favorite network instructor of all, rock on \m/
Thank you!
-- ditto --
I will never get bored of your courses Keith , just a suggestion can you provide some videos about the new technologies like sd wan, virtualization ...etc Thanks Keith
Thank you Ray for the suggestions. Currently I am focusing most of my RUclips content at the Cisco CCNA level, but will keep your suggestion in the queue as a possibility in the future. Thanks again for the ideas.
I thought for sure at the 50:15 when the music came on Keith would instantly come back with a bow tie and no shirt singing 🎶I'm to sexy- By Right Said Fred🎶!!
Keith, this was an excellent video. I found the historical discussion around frame relay particularly useful. Now the concept of NBMA is very clear. I actually studied frame relay during my network+ course. However the significance of this technology in the context of ospf was never discussed. Thanks again for clarifying this topic.👍
Happy to do it, thanks for the feedback Sandro.
"'i 8 sum pi" ....and it was delicious! now on with the lesson! :D
So good!
It took me 15 minute to get on with the lesson )))
36:23 frame-relay is not use anymore maybe in USA. In Italy is used even now, good old fashion 1.6 symmetric lines :D
Thank you Denis Pana
As always, this has been informative and I would like to thank you for uploading. Another great content about OSPF. ❤️
Glad you enjoyed it!
Keith you are a national treasure .. thank you
Thank you, that is very kind. Glad you are here.
I feel so fortunate seeing your frequently uploads what i'd been wishing for this since I fell in love with networking with Jeremy & your Voices years ago. I hope this is been informative and loved all over and i would like Thank you for reading this :)
Thank you Gulab! Glad you are here.
Mr Keith ,and Hi to everyone who is watching ,Thanksn Mr Keith for feeding us .I was hoping that I will write exam before Feb,not not
Hello Ramabolu! Glad you are here.
Very nice video.. thank you very much keith because i learned a lot from you and jeremy, i've watch all of your video in cbt nuggets which is why i passed my ccna last november. Again thank you very much and more power
Awesome on your cert in November! Thank you for the comments.
Keith you are the Best..I love your teaching skills..
You are special one explanation is phenomenal
Thank you , many of doubts regarding OSPF network types got cleared.
Glad to hear that
Yeayyyyy.. Finally.. I need to watch this one..
Thank you for being patient Thilak! I am glad you are here.
Hi Keith, thank you for this video, but I was wondering why is this content not available on the OSPF skill on CBT Nuggets that you had taught. Ironically I went through entire CCNA 200-301 course on CBT nuggets but I dint come across this topic and I had a similar question regarding the OSPF Network types on the exam. Unfortunately I dint pass it the first time and I am taking the test for a second time in October.
Thank you Noel Cutinha for the feedback. In vid 233 it discusses broadcast networks, and the function of DRs on a broadcast network, and in vid 236 it is all about P2P networks that don't use a DR. I am sorry if you missed that, or if it wasn't reinforced properly. My intention was to help you get ready for the certification, and I am sorry I didn't do as much as you needed in those videos.
Hi Keith, Does a router forwards a broadcast packet?
Great video as all the time! Thank you for you passion to networking and sharing your knowledge. Just wondering any plans to make video OSPF via BGP?
What do you mean by "OSPF via BGP"? Some redistribution, tunneling or what?
@@parheliaa please see link below to cisco which will give you more info:
www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html
Thank you Tadas for the suggestion. Currently I am focusing most of my RUclips content at the Cisco CCNA level, which does include some OSPF, (but not BGP). I will keep your suggestion in the queue as a possibility in the future. Thanks again for the idea.
@@KeithBarker thank you for your response. Really looking forward to it! :)
@@KeithBarker is BGP going to be a part of the new 200-301 CCNA?
ah yes Time Division Multiplexing...I've been in the field for 12 years, and we used TDMA and FDMA back then.
this is so good, love the explanations.
Glad you liked it!
Keith , I'm been watching all your OSPF videos , I have one more to go , my question is on broadcast type , doesn't the router function is not to allow broadcast traffic to pass thru the router ? or it makes an exception for OSPF traffic because its not been generated by a node , but by the router ? Thanks
Thank you for the question Jose Arce. I think we got this answered in the live stream today. If not, let me know and I am happy to help.
Hi Keith, yes the question was answered yesterday at the live stream , I was not sure if you saw the question a few days ago , so I asked the question at the live stream yesterday .Thanks anyway
So , sir do you have to enable ospf on all the routers in a network or only on the 2 routers of your choice?
Thank you for the question LAWRENCE THAMSANQA.
Only enable OSPF on the routers where:
Those connected networks need to be shared with other routers
You want the router to learn about routes
In short, if you have 5 routers, and don't want to use static routes on any of them, then all 5 would need to run OSPF.
They'll have a little funeral BAHAHAHAHA! That has to be one of the funniest things I have heard in 2022.
Thank you Themistocles Nelson!
Thanks Keith!
Thank you Ferry! Glad you are here.
why in 11:39 R1 is the DR? he configure R1 with 1.1.1.1 while R2 with 2.2.2.2 RID. R2 should have been DR for this segment right ?????????????????????
Thank you Kwstas for the great question. The election process for DR and BDR doesn't preempt an existing device. Because R1 was already up and running, and became the DR earlier (before R2 was running OSPF), R2 when OSPF was started on that, even though it has a higher router ID, (and even if it had a higher priority value on it's interface) would not push R1 (the current DR) out of the way. Instead R2 saw there was already a DR, and that there was no BDR for the segment yet, and so R2 became the BDR.
Excellent question. Glad to have you here.
Hi Keith,
Just wanted to say i'm a huge fan and wish i had found your channel sooner. I failed the old CCNA one week before it expired, i was devasted. It took me 8 weeks to even look at CCNA and pick it up again and at which point i found your channel, which i am working through. I wish i had found you sooner.
I'm not sure if you are still answering questions about this video , or if someone else can help. Every video you do, i try to copy the topology but build it in in packet tracer. With this i finally figured that i needed to use the router 1941 to be able to have gigabit, serial and fast ethernet ports. However now i have another issue, i cannot configure ip adresses for the fast ethernet ports between r4 and R3 - it just gives you switch options, even though i have also tried enabling ip. Is this not supported by packet tracer or am i doing something wrong? I've googled it and i don't seem to be missing any steps and spent so much time trying to figure this out.
thank you in advance
Thank you theazzy13! Join our Discord server ogit.online/Join_OGIT_on_Discord and DM me, and attach the PT file. I will help you sort it out.
@@KeithBarker Thank you Keith :-)
Hi keith , why BDR is elected first then before DR ?
Thank you for the question @sarojkumarramiya7892.
Here is the link for the RFC:
www.ietf.org/rfc/rfc2328.txt
It's an OSPF day for me on 2/4 of your OSPF videos. I think this is my least liked topic so far for the CCNA. But I'm gonna get thru it.
Thank you for the feedback, and keep me posted.
Hey Keith, it is a pitty that sh ip ospf int brief does not work on PKT
Thank you Allanzr, yes some commands are not available on PT.
Are u using physical router ?
Thank you for the question Danial Khan. I have some physical gear, but often use Eve-NG or CML as well. This gear in this demo was emulated.
Awesome video, please! please!!! please!!!!! one video on TrustSec/SGT...please!!!!!!! Thank you Keith.
Thank you Wasif, fun idea. At the present time, I am devoting most of my RUclips content towards the associate level, but I will keep those topics in the queue, and perhaps get to those in the future. Thanks again.
@@KeithBarker Thank you Keith, appreciate that :).
Great, as usual!
Thank you Mauro. I appreciate you being here.
which router should we use for this diagram in PT lab?
Thank you for the question Ashir. Almost any router will do! Make sure it has all the interfaces you need..
@@KeithBarker Thank you for your suggestion. you are a great teacher and things become easier when it comes from you.
you are very amazing, I learned a lot from you. Thank you for everything.
You are so welcome!
You are awesome
Thank you Rose Dhessi
Very good content sir
Thank you Anil!
Very informative simple and plain, thank
BTW You ate what pie?🤔😅
Thank you Fayas Amd
... some Pie...
When is EIGRP coming
Thank you Abhishek for the request. In the new CCNA, EIGRP isn't one of the protocols covered, but it definitely is in the CCNP (professional level) blueprint. I will add that to my list for the future, after I have covered all I intend to for the CCNA level. Glad you are here.
@@KeithBarker I can't believe EIGRP isn't included. Thanks for your content Keith.
The 4 network Types of OSPF char of yours is really confusing and not really organized. Put down bullettpoints of each 1 and dont make it cluttery. I cant really figure out the 4 network types is Dynamic,Multi-Access,non-broadcast,broadcast or NBMA or Auto neighbor. I had to wait for you do the ip ospf network ? in the CLI.
Thank you Anders. Let me know if this (below) is useful:
Broadcast, uses DR, auto neighbors
Non-Broadcast, uses DR, manual neighbors
Point to Point, no DR, auto neighbors
Point to Multipoint, no DR, auto neighbors (for old Frame networks)
Point to Multipoint Non-broadcast, no DR, manual neighbors (for old Frame Relay networks)
I appreciate the feedback, and your time. Thank you.
@@KeithBarker That is a better overview. I thought I saw it in your slides that something had Dynamic Neighbors, and the 5 network types you wrote to me is does not contain the dynamic neighbors,I guess I must have missed something. Thanks for replying to me with the overview. I know you are very knowledagble Keith and you want to explain things on your own and thats good, but with facts I think it would be great if you have facts that is concise and not so clutterly, atleast for me. I'm writing it down as the video progresses, the things that is important and when it came to the network ospf types it was somewhat not organized enough for me to follow and write down what I needed to know.
@@andersgjerlw9636 Thank you Anders. I appreciate that insight and feedback.
DOTHER is evil twin of Brother... No Full Adj only half Adj (2way).
Thank you for that! So good.
suprcool
So no point of having DR/BDR on point to point link.
Thank you for the question Danial Khan. If there are only 2 devices, and it is ethernet, the default OSPF network type will be broadcast, and there will be a DR by default.
Great , Today am looking your T shirt (Equation )
Not a class
Thanks! 😃
OSPF Network Types discussion begins 24:02