one of the best ever video tutorial on STP...I learned a lot about this topic. Thank you for using diagrams and and Switches to make things way easier to understand for viewers like me.
Wish my English were good enough in order to express to you how good teacher you are (and i'm very strange person when the time comes to rate a teacher). I will only say this: Wish i had a teacher like you in every study of my life. Sorry if my English confused you and thank you very much for helping us.
I'm studying Cyber in Australia, and we are studying Cisco packet tracer. If it wasn't for Keith Barker I would not have passed the first Semester. And now I'm doing Semester 2, it's Keith Barker to the rescue again. Thank Keith. So informative and easy to watch. I'm grateful to you (and have recommended this channel to all the students and the lecturers as well!)
Every Time ..Every Time!! I learn at least one thing from your videos. This is so frustrating because others have made this so difficult to understand and you make it so easy. Thank you
I watched some Video of your playlist to refocus on specific topics and get prepared for the new CCNA .... and i passed today! Thank you especially for that great video about STP. Now i will always relate GOLF to STP and never forgot the 802.1w Next step is the road to CCNP :) Greets from Germany Micha
Awesome explanation of how STP works. I appreciate the time and effort you dedicate to teach and make the content available for millions of people globally.
You sir, are an excellent instructor. It was a very well presented lesson of Spanning Tree Protocol, and the first time I ever got a grasp of WTH it does and why it's important.
Thank You! I'm actually working on Network+ but have been watching some of your videos and they are very helpful. Your positive and happy vibe is very engaging and before I knew it the entire hour+ had passed.
This is fantastic. I am self studying with the Wendell Odom books and your instruction fills in the gaps well with topics that are hard to understand directly from reading these books from Wendell. Thank you again!
Thanks for these generous video Keith, it is really fun watching your videos i really enjoy them. keep up the good work. you are the best teacher on networking!
Thank you Keith for this!! Am currently preparing for my CCNA and Wendell Odom's book got too much into detail and lost me completely on this topic. Now i can clearly understand based on your hand drawn illustrations👏👏👏🙌
You're the best teacher ever In addition to your Information, your spirit and your way are so captivating I'm really really thankful for you and your great efforts
I totally agree! Keith you are so enthusiastic and energizing to listen to. I can tell you know your stuff and you have a gift for teaching. Thanks for taking the extra time to explain every little detail and using wireshark to prove theories. Great explanation metafors too. You're the man! Greetings from Sweden/Stockholm
Hi, may I please ask why Wireshark shows the ARP request's Target MAC Address as 00:00:00:00:00:00 when we're actually broadcasting to FF:F:FF:FF:FF:FF? (Video Time - 7:30)
Great question. In the payload of the ARP request, the device sending the request doesn't yet know the target's MAC address. That is why the target is set (in the payload of the ARP request) to all 0s. The destination in the Layer 2 header is the L2 broadcast of all 1s (Hex all Fs). Hope that helps, and happy studies. :)
Keith, you're the best. Love watching your channel and learn about network technology. Great explanation about how stp works. Please continue producing great learning videos for us.
Really love that energy! Thanks for making networking sounds fun and cool to learn. With this kind of presentation, definitely will attract people to learn networking :D
One of my first time writing a comment, one of my first video's of 1 hour of content which i watched. You're a legend for how you explain all of this, most definitely i am gonna watch your other videos (be)for(e) my CCNA exam!
Happy to help and thank you for the comments! Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord Thanks again!
a very clear explanation about the STP. I understood everything in one go except for the last bit. Which I will have to go over again. Thanks so much Keith. ok...2nd review done : now my knowledge is solid.😀
Please do a second session for Spanning Tree. Also show how you do a secondary as in the spanning-tree vlan 10 root primary/secondary. Also mention more in the next STP video for MSTP,RSTP,CST and give us more basic information about the various STP variants so its not just towards the new CCNA 200-301 cert. Also mention the cost of fast ethernet and 10Gbit ethernet aswell. I have watched a STP video from Laz last week I belive, I'm watching yours aswell to see who has the best information and what the other person left out. Maybe little too much of layman term explaining,but overall a good video.
@@KeithBarker Mr can you please give me your phone number and your email because I have only one question that I do not know how to solve it can you do it for me
Great explanation video! I read through the chapter in the cert guide but it was a little confusing. This helped a lot in my understanding! Would recommend also reading the chapter for the nit picky details Cisco likes to quiz on.
Many thanks this has really hepled to consolidate this important topic. I first watched Jeremy on CBT then youself, great work always learning from you
Keith when you were talking about "Cost" at around 22 minutes in what specifically does that mean? Cost of bandwidth? Monetary Cost? Your unique remedial style of teaching is very easy to learn from. was wondering if you offer 1 on 1 online or over the phone coaching?
Great way to explain Keith. Would have been done with CCIE I'd I had gotten your channel earlier. Stuff here. I'm on to CCNP but brushing up with this before I enter that. I won't stop till I get CCIE.
I removed the two connections between the SW1 and SW2 and it worked well!! Why was that two connections necessary? Thank u so much! Your videos really helped me. May God Bless you!
Thank you for the question @FaberLSH. Multiple connections can provide fault tolerance, and if using EtherChannel it can also provide for additional usable bandwidth.
Thank you @keithbarker ! I am studying for CCNA and your videos are really helpful! You are a great teacher! I appreciate what you have done years ago and probably you are currently doing and I am following your unaging videos right now. Question: Some of your videos are somehow cut in between, like if there was a copyright claim or something. I am not sure if I am missing out something, you could check if you want: 9:45
Hi Keith. Do you know of an easy way to reconstruct the switch topology without using CDP or LLDP? Assuming of course that the interface descriptions are also not trustworthy. I think the best way would be using STP output. But I imagine this gets very tricky if only one switch (SW1) connects to the root bridge, while all other switches (e.g. SW2, SW3) reach the root via SW1, by being plugged into SW1 directly. Using only the show spanning tree outputs, I don't see how we could check which interfaces of SW1 switches SW2, SW3 connect to. Although, we could look at SW1's ARP table for that information. Even worse: what if there are additional switches (e.g. SW4, SW5) which reach SW1 via SW2, SW3? Could you perhaps do a demonstration on how to map a network like that? I know it's a bit of a fringe topic, but I'm sure it would be interesting to see. Thank you.
Hi Keith - When are you coming back on RUclips - Discord - You have literally transformed my learning study path in Networking👍 The live quiz that you used to do on a Sunday was fantastic please bring it back 😊
Hi Keith...about 9:47 this video hits a snag. Goes from taking about a L2 header to dogs mushing. Definitely lost me there. But I'll keep on. Great Video as always.
Hey Keith, thanks for the wonderful video. A quick question. @43:30, if we assume that everything in this network topology stays the same, except SW3 and SW2 are connected via Fast Ethernet with the cost of 19, SW3 2/3 would still be designated port, we would then put SW2 2/2 interface in a blocking state? Would SW2 3/0 then become Root port, with SW1 0/0 becoming Designated, and SW2 1/3 would become Designated, and SW1 1/2 would become undesignated? Did I guess it correctly? I'm really struggling with this one and I am watching this for the 6th time, but I am eager to get my CCNA and won't give up after a few failed attempts. Thanks a lot, you are an amazing dude!
Thank you for the question @marko514. Don't have the time right now to go back through that video and perform a what-if. You may want to lab this one up, in packet tracer or emulator, and test your predictions.
Hi Keith, Thank you so much for your videos... I have a small query! If SW1 and SW2 are connected via FastEthernet ports, SW1 and SW3 are connected via GigabitEthernet, SW2 and SW3 are connected via GigabitEthernet and If SW2 is Root Bridge, then the Fa ports between SW1 to SW2 will be in blocking state right.
Thank you for the question Jemuel B Jeroham. Every segment will have 1 designated port. So even on a slower link, 1 device will be forwarding for the benefit of that link. Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord Thanks again Jemuel B Jeroham!
Hey @Keith sw 2 port 1/3 what does 1/3 stand for? from my experience, i thought 1 is the stack in the switch is in and 3 would be the port but what confused me has that on sw2 there is 3/0 and 3/3. Could you explain.
59:59 I assume it should be SW2 3/0 to SW1 2/0? Anyway very sincerely thank you for the video. This is the most comprehensive visualization of STP I have seen thus far. Also, was wondering if you have video on how to identify and troubleshoot spanning tree loop?
Thank you CableZL! You are absolutely right. A quick sort back on the number column, and I would have been home free! Thank you for being here, and for your comments. Much appreciated.
Thank you for the question. Cisco's implementation of spanning tree for uses a separate instance of STP for each and every VLAN. By default, the device that has the lowest bridge ID (BID) will be the root for all the VLANs. The benefit of changing the root for some of the VLANs is to allow some traffic to flow over layer 2 path A, while other VLANs use layer 2 path B. In multiple spanning tree (802.1W, MST) they use fewer numbers of spanning tree instances, with the ability to train specific VLANs to use a specific STP instance. All those more advanced options are covered in the CCNP level content. Let me know if that helps, or if you have other questions. Great having you in the stream this weekend!
what would happen in stacked switched connection?, e.g. each end of ethernet connected to access ports, stp would not block, do we need to enable bpdu guard? or how to stop loop in logical stacked switch? Thanks.
one of the best ever video tutorial on STP...I learned a lot about this topic. Thank you for using diagrams and
and Switches to make things way easier to understand for viewers like me.
Glad you enjoyed it!
You have the best pedagogy of anyone in the IT teaching space. Your mnemonics are so memorable.
Thank you seth jones!
Wish my English were good enough in order to express to you how good teacher you are (and i'm very strange person when the time comes to rate a teacher). I will only say this: Wish i had a teacher like you in every study of my life. Sorry if my English confused you and thank you very much for helping us.
Thank you CriNti!
You are a natural treasure for us aspiring Network Engineers. Thank you Keith!
I'm studying Cyber in Australia, and we are studying Cisco packet tracer. If it wasn't for Keith Barker I would not have passed the first Semester. And now I'm doing Semester 2, it's Keith Barker to the rescue again.
Thank Keith. So informative and easy to watch. I'm grateful to you (and have recommended this channel to all the students and the lecturers as well!)
Took my CCNA the other day after coming to this video to reinforce spanning tree concepts and got a pass. this video came in clutch for me on my exam.
Congratulations @neage7171❗
So great to hear, way to get it done. Best wishes on your continued success.
Every Time ..Every Time!! I learn at least one thing from your videos. This is so frustrating because others have made this so difficult to understand and you make it so easy. Thank you
Thank you ezautorepair!
I watched some Video of your playlist to refocus on specific topics and get prepared for the new CCNA .... and i passed today! Thank you especially for that great video about STP. Now i will always relate GOLF to STP and never forgot the 802.1w
Next step is the road to CCNP :)
Greets from Germany
Micha
Congratulations Micha Rainman❗
So great to hear, way to get it done. Best wishes on your continued success.
Awesome explanation of how STP works. I appreciate the time and effort you dedicate to teach and make the content available for millions of people globally.
My pleasure!
Hands down one of the best masters of the network industries
Thank you minuterain!
You sir, are an excellent instructor. It was a very well presented lesson of Spanning Tree Protocol, and the first time I ever got a grasp of WTH it does and why it's important.
Glad it was helpful!
Thank you keith. Finally I'm able to understand how golf can be played because of STP. Greetings from Algeria.
Thank You! I'm actually working on Network+ but have been watching some of your videos and they are very helpful. Your positive and happy vibe is very engaging and before I knew it the entire hour+ had passed.
Great to hear!
A wonderful human being with soo much excitement with teaching…
Thank you @usumaniddrisa9279!
Keith Barker you are a great teacher my man. Keep it going ? You help clear up spanning tree with this video.
Glad to help
I love this man. Ive seen numerous explanations about STP and this is by far the easiest to grasp.
Thank you.
Wow, thanks!
Excellent presentation Keith, on STP. Thank you for taking the time to provide a clear picture of how STP works.
Glad you enjoyed it
best video ever for STP..EVEN A NEWBIE CAN UNDERSTAND THE CONCEPTS AFTER THE VIDEO.
Thank you Thirukumaran Arun!
Best video on STP, apparently the 13 people who did not like this video, still do not understand STP, and most likely failed their CCNA test.
Thank you Seth Raymond
Thank you very much Keith. This is the first time I understand how STP works. Well explained!!! Very informative
Great to hear!
This is fantastic. I am self studying with the Wendell Odom books and your instruction fills in the gaps well with topics that are hard to understand directly from reading these books from Wendell. Thank you again!
You're very welcome!
Thanks for these generous video Keith, it is really fun watching your videos i really enjoy them.
keep up the good work. you are the best teacher on networking!
Glad you like them!
Thank you for “forwarding” on your knowledge and not “blocking” my progress 🙌
You bet!
Thanks Keith. Your videos are so well done and well explained. I learn a lot by watching them.
Glad you like them!
Thanks Keith! finally, you have started putting your own videos on your own channel... we are always learning something from you - Thanks Again!
Thank you Uditha Fernando! Glad you are here.
Great lecture, well worth watching to the end. Keith Barker never disappoints
Thank you ConsoleRebels!
Thank you Keith for this!! Am currently preparing for my CCNA and Wendell Odom's book got too much into detail and lost me completely on this topic. Now i can clearly understand based on your hand drawn illustrations👏👏👏🙌
Glad it was helpful!
It took me a week to really digest this video, but I truly appreciate how you show us visual explanations. Best explanation on RUclips yet!
Glad you enjoyed it!
You're the best teacher ever
In addition to your Information, your spirit and your way are so captivating
I'm really really thankful for you and your great efforts
Thank you! 😃
Thank you very much, your teaching style is fantastic, legend teacher on this hard topic of networking. Great!
Wow, thank you!
I totally agree! Keith you are so enthusiastic and energizing to listen to.
I can tell you know your stuff and you have a gift for teaching. Thanks for taking the extra time to explain every little detail and using wireshark to prove theories. Great explanation metafors too.
You're the man! Greetings from Sweden/Stockholm
Hi, may I please ask why Wireshark shows the ARP request's Target MAC Address as 00:00:00:00:00:00 when we're actually broadcasting to FF:F:FF:FF:FF:FF? (Video Time - 7:30)
Great question. In the payload of the ARP request, the device sending the request doesn't yet know the target's MAC address. That is why the target is set (in the payload of the ARP request) to all 0s. The destination in the Layer 2 header is the L2 broadcast of all 1s (Hex all Fs). Hope that helps, and happy studies. :)
Keith, you're the best. Love watching your channel and learn about network technology. Great explanation about how stp works. Please continue producing great learning videos for us.
Keith , you're one of the best teachers out there ...Thanks a lot..These videos are so helpful for my CCNA studies.
Glad to hear that!
Thank you for explaining difficult topics in easy words!
Thanks For Listening!
STP is all about Golf. Thank you Keith.
Really love that energy! Thanks for making networking sounds fun and cool to learn. With this kind of presentation, definitely will attract people to learn networking :D
Awesome! Thank you!
Excellent explanation. Many thanks for sharing Keith, God bless you.
Thank you David R. Flores!
One of my first time writing a comment, one of my first video's of 1 hour of content which i watched.
You're a legend for how you explain all of this, most definitely i am gonna watch your other videos (be)for(e) my CCNA exam!
Wow, thanks! Welcome Jesse!
Mind blowing how you can make something so complex understandable! Thanks!
Happy to help!
Very well explained, thank you and the entire CBT Nuggets team. The kings of the Internet!
Thank you Nikola Trpevski!
The world needs more Keith Barker
Thank you Alex! Made my day.
Happy studies.
You could have short cutted and said that the root port is the switchport connected to the root bridge. But the long explanation is great to know.
Dude thank you so so much for posting all of these videos. You have taught me so much
Happy to do it, thanks for the feedback Michael.
This show stopper for STP for me. Everything is explained very well. Interesting part is you can see BPDUs :)
Thank you Jeevan Chaitanya Koppuravuri!
Keith and Jeremy are my mentors
Thank you Ali Gohar!
Its really grate with clear presentation.we got clear breaf about STP.THANKS FOR IT.....
You are most welcome
ALWAYS LEARNING NEW THING EVERYDAY FROM HERE -
Thank you J AUOM! Glad you are here.
Yep...
Thank you so much for making us understand depth of STP !
Happy to help and thank you for the comments!
Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord
Thanks again!
Mr Keith, you are amazing
Thank you a lot
Lots of love
Thank you Ahmad Swailem! Glad you are here.
Keith, your Master Playlist for CCNA is awesome... I learning CCNA from your playlist only... Thank you so much!
Glad you like them!
Thank you very much, Keith!
You are doing the best job!
a very clear explanation about the STP. I understood everything in one go except for the last bit. Which I will have to go over again. Thanks so much Keith.
ok...2nd review done : now my knowledge is solid.😀
Thank you Ranjana Dissanayaka!
I am very grateful to you for your class, it's a very complete and great material, I enjoyed a lot your labs. You have won another subcriber!
Many thanks!
Awesome video. you really helped me understand DP ports. Thanks
Glad it helped!
Please do a second session for Spanning Tree. Also show how you do a secondary as in the spanning-tree vlan 10 root primary/secondary. Also mention more in the next STP video for MSTP,RSTP,CST and give us more basic information about the various STP variants so its not just towards the new CCNA 200-301 cert. Also mention the cost of fast ethernet and 10Gbit ethernet aswell. I have watched a STP video from Laz last week I belive, I'm watching yours aswell to see who has the best information and what the other person left out.
Maybe little too much of layman term explaining,but overall a good video.
Thank you anders gjerløw, great idea. I will add that to my list. Glad you are here.
@@KeithBarker Mr can you please give me your phone number and your email because I have only one question that I do not know how to solve it can you do it for me
I might not participate in your live streams but I do watch them 3yrs after they're made! 😁
Thank you ftzx1!
As always, very clear and confirming method in teaching .. Keith thanks for sharing!
Happy to do it, thanks for the feedback Ahmad.
Awesome break down and explanation. Thank you Keith.
Glad it was helpful!
I love you man. No more crying over STP 😆
Great tutorial
Thank you Donaire Carapichoso!
Thank you so much Keith ..GREAT RESOURCE FOR CCNA PREPARATION.
Glad it was helpful!
Great explanation video! I read through the chapter in the cert guide but it was a little confusing. This helped a lot in my understanding! Would recommend also reading the chapter for the nit picky details Cisco likes to quiz on.
Thank you Gabe.
Keith is a legend!!!!!!!!!!!
Great! This is a very engaging and informative video.
Thank you Timothy Maxwell!
Many thanks this has really hepled to consolidate this important topic. I first watched Jeremy on CBT then youself, great work always learning from you
Glad it was helpful!
Keith when you were talking about "Cost" at around 22 minutes in what specifically does that mean? Cost of bandwidth? Monetary Cost? Your unique remedial style of teaching is very easy to learn from. was wondering if you offer 1 on 1 online or over the phone coaching?
Great way to explain Keith. Would have been done with CCIE I'd I had gotten your channel earlier. Stuff here. I'm on to CCNP but brushing up with this before I enter that. I won't stop till I get CCIE.
Welcome aboard!
Wow awesome video!👏🏻👏🏻👏🏻i will watch it again and again thank you so much!
Glad you enjoyed it!
happy new year dear KB and thanx for every thing that you share and will help me to pass the new CCNA 200 - 301 exam .
Thank you aklilu abay! Glad you are here.
Very informative. Great effort and Great work.
Thank you Nimesis!
49:20 i was so proud of myself when i knew that the sender port is the tie breaker LOL. Thank you keith for making these awesome videos
Happy to do it, thanks for the feedback @zikobht6618.
Thanks Keith.. Your videos are a blessing.. 🙏
Your Welcome!
I removed the two connections between the SW1 and SW2 and it worked well!! Why was that two connections necessary? Thank u so much! Your videos really helped me. May God Bless you!
Thank you for the question @FaberLSH. Multiple connections can provide fault tolerance, and if using EtherChannel it can also provide for additional usable bandwidth.
Thank you @keithbarker ! I am studying for CCNA and your videos are really helpful! You are a great teacher! I appreciate what you have done years ago and probably you are currently doing and I am following your unaging videos right now. Question: Some of your videos are somehow cut in between, like if there was a copyright claim or something. I am not sure if I am missing out something, you could check if you want: 9:45
Thank you @Sallapati84!
Hi Keith. Do you know of an easy way to reconstruct the switch topology without using CDP or LLDP? Assuming of course that the interface descriptions are also not trustworthy.
I think the best way would be using STP output. But I imagine this gets very tricky if only one switch (SW1) connects to the root bridge, while all other switches (e.g. SW2, SW3) reach the root via SW1, by being plugged into SW1 directly. Using only the show spanning tree outputs, I don't see how we could check which interfaces of SW1 switches SW2, SW3 connect to. Although, we could look at SW1's ARP table for that information.
Even worse: what if there are additional switches (e.g. SW4, SW5) which reach SW1 via SW2, SW3?
Could you perhaps do a demonstration on how to map a network like that? I know it's a bit of a fringe topic, but I'm sure it would be interesting to see.
Thank you.
Great job Keith 👍👍👍
Thank you Alex Rosca!
You are a great teacher 👏👏
Thank you! 😃
Thanks for all.
You make everything clear.
You are welcome!
Thank you for this video. It helped me a lot.
Of Course! Happy To Help!
The playlist idea will be very helpful. Thanks a lot Keith. Amazing videos as always!
Thank you lliillYMCMBlliill!
Thanks for the stream Keith, loving the new CBT Nuggets content!
Thank you Nick Carlton! Glad you are here.
Keith - This video is excellent and well presented. Thank you so much #Legend
Thank you Flying Scotsman!
Hi Keith - When are you coming back on RUclips - Discord - You have literally transformed my learning study path in Networking👍 The live quiz that you used to do on a Sunday was fantastic please bring it back 😊
Great lesson, very interactive! thank you Keith!
Thank you XJ JZ!
Happy new year to you too Keith...we always grateful for such useful information
Thank you Simphiwe! Happy new year to you as well!
Hi Keith...about 9:47 this video hits a snag. Goes from taking about a L2 header to dogs mushing. Definitely lost me there. But I'll keep on. Great Video as always.
Thank you Brian Wool!
Yeah I noticed this too. Does it a few times in the 9 minute section. Its almost like the video is cut and edited.
Hey Keith, thanks for the wonderful video. A quick question.
@43:30, if we assume that everything in this network topology stays the same, except SW3 and SW2 are connected via Fast Ethernet with the cost of 19, SW3 2/3 would still be designated port, we would then put SW2 2/2 interface in a blocking state?
Would SW2 3/0 then become Root port, with SW1 0/0 becoming Designated, and SW2 1/3 would become Designated, and SW1 1/2 would become undesignated? Did I guess it correctly?
I'm really struggling with this one and I am watching this for the 6th time, but I am eager to get my CCNA and won't give up after a few failed attempts. Thanks a lot, you are an amazing dude!
Thank you for the question @marko514. Don't have the time right now to go back through that video and perform a what-if. You may want to lab this one up, in packet tracer or emulator, and test your predictions.
Thanks for the vid. Very well explained... I'll definitely check your other videos on CCNA, I like the way you teach!
Thank you Jonathan De Felice!
Hi Keith,
Thank you so much for your videos...
I have a small query!
If SW1 and SW2 are connected via FastEthernet ports, SW1 and SW3 are connected via GigabitEthernet, SW2 and SW3 are connected via GigabitEthernet and If SW2 is Root Bridge, then the Fa ports between SW1 to SW2 will be in blocking state right.
Thank you for the question Jemuel B Jeroham. Every segment will have 1 designated port. So even on a slower link, 1 device will be forwarding for the benefit of that link.
Feel free to join my Discord sever. Lots of people there helping each other out. Each Saturday at 10am Pacific I hold my "Office Hour" where learners can ask questions about the topics they are studying. Mostly focusing on Cisco CCNA 200-301 topics. Feel free to join us there live if you are available. Here is the link ogit.online/Join_OGIT_on_Discord
Thanks again Jemuel B Jeroham!
@@KeithBarker Thank you Keith !! I have joined your Discord Server 😊
Hey @Keith
sw 2 port 1/3
what does 1/3 stand for?
from my experience, i thought 1 is the stack in the switch is in and 3 would be the port but what confused me has that on sw2 there is 3/0 and 3/3. Could you explain.
This guy is amazing.
59:59 I assume it should be SW2 3/0 to SW1 2/0? Anyway very sincerely thank you for the video. This is the most comprehensive visualization of STP I have seen thus far.
Also, was wondering if you have video on how to identify and troubleshoot spanning tree loop?
Hey Keith, you accidentally sorted the first packet capture by the destination column, which is why you couldn't find the ARP request
Thank you CableZL! You are absolutely right. A quick sort back on the number column, and I would have been home free! Thank you for being here, and for your comments. Much appreciated.
Liked it. A very good explanation
Thank you Gideon Kipkoech!
@Keith Baker > Can you please make a video on MSTP as well. I searched for it but not found. If there any can throw that link below my comment?
would it not make sense to have "Root Port" in forwarding state for all vlans in production, instead of per vlan?
please advise.
Thank you for the question. Cisco's implementation of spanning tree for uses a separate instance of STP for each and every VLAN. By default, the device that has the lowest bridge ID (BID) will be the root for all the VLANs. The benefit of changing the root for some of the VLANs is to allow some traffic to flow over layer 2 path A, while other VLANs use layer 2 path B. In multiple spanning tree (802.1W, MST) they use fewer numbers of spanning tree instances, with the ability to train specific VLANs to use a specific STP instance. All those more advanced options are covered in the CCNP level content.
Let me know if that helps, or if you have other questions. Great having you in the stream this weekend!
Thankyou for your answer, again very much appreciated and your hard work getting the videos together. 🌹
what would happen in stacked switched connection?, e.g. each end of ethernet connected to access ports, stp would not block, do we need to enable bpdu guard? or how to stop loop in logical stacked switch?
Thanks.
I vote for router on a stick and Port security! (Since no one else apparently votes for this I want to help ;-) Thanks for the education.
Thank you Bavo Bostoen, great idea. I will add that to my list. Glad you are here.
I love the shirt and it is pretty darn cool
Thank you Chad Smith!
YOU ROCK KEITH!!!!!
Thank you Terry Carr!
Thank You for the Video. Your New Subscriber from India. Your Videos are Amazing.
Thanks for the sub!
I´d love to see videos about wireshark you are really good explaining. Thank you :)
Thank you Esteban Lopez, great idea. I will add that to my list. Glad you are here.
Music..aahhh !! Super collection. Thank you 😊
Thank you Gaurav Desai