Just in case this is helpful for others, here are my notes from this video. STP Overview Spanning Tree Protocol Types of STP - Original STP - STP / 802.1D - PVST+ - Cisco improvement adding a per VLAN feature - Cisco default - RSTP / 802.1w - Improved STP with much faster convergence - Rapid PVST+ - Cisco improvement of RSTP adding per VLAN feature - Makes a large network more efficient Why STP? - STP is used to prevent loops when using redundant switches - Broadcast messages are sent all the time and Broadcast Storms are easy to trigger - Loops also cause unstable MAC address tables because they're constantly being changed/updated - Duplicate frames are being sent to the same host How STP Works - Switches in a loop 'drop' one of the ports - Switch with the blocked port still receives the data but it ignores it - Simple but how the switches choose the port to block can be tricky Choosing the blocked port - 1) Elect a root bridge - King of switches - 2) Place root bridge interfaces into a Forwarding state - 3) Each non-root switch selects its Root Port - This is the best route to the bridge - 4) Remaining links choose a Designated Port - 5) All other ports are put into a Blocking state Roles - Root Ports - The best port to reach the Root Bridge - Designated Port - Port with the best route to the Root Bridge on a link - Non-Designated Ports - All other ports that are in a blocking state States - Disabled - Port that is shutdown - Blocking - A port that is blocking traffic - Must move to Listening state before moving to Forwarding - Listening - Not forwarding traffic and not learning MAC addresses - Transitional State while changing from 1 role to another - Held in this state for the Forward Delay timer (15 sec default) - Learning - Not forwarding traffic but learning MAC addresses - Transitional State while changing from 1 role to another - Held in this state for the Forward Delay timer (15 sec default) - After this, the port can now move to a Forwarding state - Forwarding - Sending and receiving traffic like normal - Can move directly to Blocking Root Bridge Election - Each switch has a BPDU. BPDU contains: - Root Cost - Cost of the root bridge - BID (Bridge ID) - The switch with the lowest overall BID will become the root bridge - They look something like: 32769aaaa:aaaa:aaaa - BID is made up of: - STP priority - Default value of 32768 + VLAN number - For VLAN 1, the STP priority would be 32769 - MAC Address - Each switch thinks it should be the root bridge - They share their BPDUs with each other - Once they all agree, the root bridge has been elected - All ports on the root bridge enter a Forwarding State - Each non-root switch will now choose the best path to the root bridge - This is the Root Port - This is based on Port Cost - Cost is based on port speed - Better speed, lower cost - Each outgoing port to the root added together - Can be set manually - If a tie happens, they look at lowest neighbor BID - If they tie, they use lowest neighbor port priority - If they tie, lowest neighbor port number - Select a Designated Port - Look at lowest root cost to the bridge - If that ties, lowest BID - If that ties, lowest neighbor port priority - If that ties, lowest neighbor port number - Every port that is not a root port of designated port is put in a Blocking State Downfall of STP -- Convergence - The time it takes to do the work and become stable Timers - Default (RSTP addresses the delay of convergence) - Hello - Every 2 seconds - Lets everyone know everything is still alive - MaxAge - 10x Hello timer by default (20 seconds) - The time the switch will wait before it realizes something is wrong - Forward Delay - 15 seconds - The time between the Listening and Learning state
"Now you may not notice, the switches are arrogant * * * *'s, they all think they should be the root bridge" They bloody well are you legend! Watched this 2 times and it all clicked right into place, also because of this legendary quote i will probably not forget this! Thx so very much!
Time: Your video was longer than other Spanning Tree informative videos but your video has more information. My time watching your video was time well spent.
It's 0549 and its usually really quiet when I study this early in the morning, and the "Arrogant ****" came out of nowhere!! Educational and HILARIOUS, now I have to subscribe!
I was watching this video... and that comment got me like a curveball. He said it so straightforward yet out of nowhere. it's reason why I'm subscribing, and why I'm in the comment section lol
I was let down by my local college by not having teachers to teach networking. I had to do the learning all by myself to get my networking specialisation. Your channel is like treasure to me. Such complex topics explained really beautifully. Thanks guys for making this free!
This is the best and most straightforward breakdown of this topic I've ever seen. I was struggling even with the excellent Wendell book. I truly hope you continue making more videos like these! It's invaluable
agreed with this. the book references illustrations on previous pages. doesnt help for people with ADD constantly flipping back and forth while trying to focus on the content lol
your explanations are like the computer in the film Matrix that people connect behind their heads. After watching the video you become an expert in the stuff.
Thank you, you condensed my doctor's 2 hour lecture into twenty minutes. You explained the topic very well; I enjoyed the mild humor, this video is great.
My God! I cannot believe I actually understood STP. I do not have a background in networking and have always struggled with understanding network concepts. I am very grateful to you for making these videos. Thank you and keep them coming!
You clarified this subject for me after I spent almost a week banging my head against the wall. Thank you so much. Thank you for the humorous *bleep* with the arrogant router comment. Made my day.
This is one of the best Network Tech vids I've ever seen. Not only was each concept clearly explained, but the visual aid for each step of the STP process was outstanding and clear as well.
Amazing analysis!! Such a high level networking subject, that too many people mess up, is analysed here in such a way that, even a 10 years old child would do understand. I wish you were my teacher, and I was present in your teaching classrooms. Education needs teachers like you. Thank you!
Hi, I've recently bought your course for Ccna, 30% through so far and I adore it. The lab work has definitely helped me define the knowledge of the lessons and keep the skills in ny head through trial and error.
This is an extremely well put together presentation on STP. This will definitely help me to get many of those STP questions on the CCNA exam correct. Thank you for sharing! You rock!
I prefer hearing to reading things at times because I usually read to relax. Plus I can listen while at work so it constantly refreshes in my head. Thank you guys.
Thank you so much for this lucid explanation. STP for me previously was a nightmare. Your video is exactly what I needed to get over this scarecrow! Eugene Che, CCNA student writing from Buea Cameroon, Central Africa.
I have to agree with the consensus here. Your videos are awesome, informative, and helpful. The best part is it's in clear to understand ENGLISH. Other videos are in broken English and it makes already difficult to understand concepts even more difficult. Thanks for all of your hard work and wish me luck on my exam.
I’ve watched a lot of videos and on this topic, this explanation is far more in-depth explanation and understanding. And the kind of video I’m looking for that gives understanding. I’ll have to rewatch it, but definitely thanks for these kind of detail understanding videos. People that really want to learn and understand this stuff appreciate these kind of videos.
This video explain it all quite perfectly, and is quite entertaining to watch and learn at the same time, the graphics and animation is clean, and the narrator has a special sense of humor too
I am preparing to take Huawei R-S Certification. And a lot of videos explain how to implement in the Switche OS. But none of them explain how it really works like you guys do. Very cool video. Great Job.
HOW HAVE I ONLY NOW FOUND YOURE CHANEL????? this is so well explained! Im studying IT and struggle with learning youre so good at explaining thank you!
This really help connects everything from the book and pieced them together, will try to watch the video a few more times to nail this down, thank you!!!
I have so much confusion and after watching your animated videos very crispal clear videos Thank you bro We need more videos like this Please don't stop posting it Thank you
This is very good! One thing I personally would like to see though would be more elaborate explanations to confirm our understandings of the concepts. For example, when explaimg the root bridge election, it would help to hear exactly why Switch A won the election to root bridge - bc the priority numbers were all a tie, so it then fell to the MAC addresses to be the deciding factors. Bc S-A had the lowest MAC address, it was the winner; aaaaa was lower than bbbbb and cccc on switches B & C. I LIKE the simplicity of you graphics and the absence of needess port and vlan numbers which in the beginning are unnecessary. THANKS AGAIN!
From my understanding, it's the lowest local port priority then the lowest local port number (For designated port roles). It behaves this way when you test it. 4. Elect a Designated Port Lowest root cost Lowest BID Lowest internal port priority Lowest internal port number "Note: Two additional tiebreakers are needed in some cases, although these would be unlikely today. A single switch can connect two or more interfaces to the same collision domain by connecting to a hub. In that case, the one switch hears its own BPDUs. So, if a switch ties with itself, two additional tiebreakers are used: the lowest interface STP priority and, if that ties, the lowest internal interface number." Cisco Press Book 200-105 Page 54.
Lowest root cost Lowest BID Lowest sender port priority Lowest sender port number If all else fails (like connecting to a hub) it will use its lowest local port number.
CertBros thanks man! This made it click! Those last two only happen with a hub. It makes sense that the best sender gets that role. Each switch can't select that role otherwise you'd end up with multiple designated ports on the same collision domain. XD
I absolutely love this channel. I'll study the concept via another video provider that is much more technical, then solidify with reading. I'll reward myself after all of that and come here for a brief simple overview of the concept and have it solidified. Now I know that Switches are arrogant ****
Very clear explanation. In case someone has trouble understanding this, I would suggest learning first these subjects: MAC table / CAM table Broadcast frame Flooding Unicast frame
Guys... this is really good stuff! struggled to understand basic spanning tree and it cost me my first IDNA2 attempt. This is so clear and easy to understand. Thank you. Keep it up.
I never understood STP when I actually had access to Cisco's netacad, the instructor I had was terrible as well, so definitely didn't help. Now, after watching the video just once and scribbling some notes, I feel as though I actually know what's going on! Thanks!
i was hoping for this as well, the explanation of designated port was very lacking. i don’t understand what a designated port is or what it does. could use some more explanation here
incredible. i wish you were my networking instructor lmao it would be so much easier to understand things with your method of explanation and pronunciation.
Extremely helpful - thank you! :) In particular I appreciate the way you explain the concepts in very simplistic terms first, followed by then explaining an issue that happen... how the issue would happen... and then how that issue is addressed. Then you move on to explain how yet a different issue could happen - and again explain what would happen, etc. By doing it this way it allows viewers to understand the concepts, but also recognize if they are having the issues you explain as potential issues. Thanks again! :) PS. perhaps I missed it... but do you have any videos on VLT Fault Domains?
Thanks Mauricio! I really appreciate your support. 🙏 You can get the course as a pre-launch if you'rere interested, the link is in the description. Good luck with your studies!
Just in case this is helpful for others, here are my notes from this video.
STP Overview
Spanning Tree Protocol
Types of STP
- Original STP
- STP / 802.1D
- PVST+
- Cisco improvement adding a per VLAN feature
- Cisco default
- RSTP / 802.1w
- Improved STP with much faster convergence
- Rapid PVST+
- Cisco improvement of RSTP adding per VLAN feature
- Makes a large network more efficient
Why STP?
- STP is used to prevent loops when using redundant switches
- Broadcast messages are sent all the time and Broadcast Storms are easy to trigger
- Loops also cause unstable MAC address tables because they're constantly being changed/updated
- Duplicate frames are being sent to the same host
How STP Works
- Switches in a loop 'drop' one of the ports
- Switch with the blocked port still receives the data but it ignores it
- Simple but how the switches choose the port to block can be tricky
Choosing the blocked port
- 1) Elect a root bridge
- King of switches
- 2) Place root bridge interfaces into a Forwarding state
- 3) Each non-root switch selects its Root Port
- This is the best route to the bridge
- 4) Remaining links choose a Designated Port
- 5) All other ports are put into a Blocking state
Roles
- Root Ports
- The best port to reach the Root Bridge
- Designated Port
- Port with the best route to the Root Bridge on a link
- Non-Designated Ports
- All other ports that are in a blocking state
States
- Disabled
- Port that is shutdown
- Blocking
- A port that is blocking traffic
- Must move to Listening state before moving to Forwarding
- Listening
- Not forwarding traffic and not learning MAC addresses
- Transitional State while changing from 1 role to another
- Held in this state for the Forward Delay timer (15 sec default)
- Learning
- Not forwarding traffic but learning MAC addresses
- Transitional State while changing from 1 role to another
- Held in this state for the Forward Delay timer (15 sec default)
- After this, the port can now move to a Forwarding state
- Forwarding
- Sending and receiving traffic like normal
- Can move directly to Blocking
Root Bridge Election
- Each switch has a BPDU. BPDU contains:
- Root Cost
- Cost of the root bridge
- BID (Bridge ID)
- The switch with the lowest overall BID will become the root bridge
- They look something like: 32769aaaa:aaaa:aaaa
- BID is made up of:
- STP priority
- Default value of 32768 + VLAN number
- For VLAN 1, the STP priority would be 32769
- MAC Address
- Each switch thinks it should be the root bridge
- They share their BPDUs with each other
- Once they all agree, the root bridge has been elected
- All ports on the root bridge enter a Forwarding State
- Each non-root switch will now choose the best path to the root bridge
- This is the Root Port
- This is based on Port Cost
- Cost is based on port speed
- Better speed, lower cost
- Each outgoing port to the root added together
- Can be set manually
- If a tie happens, they look at lowest neighbor BID
- If they tie, they use lowest neighbor port priority
- If they tie, lowest neighbor port number
- Select a Designated Port
- Look at lowest root cost to the bridge
- If that ties, lowest BID
- If that ties, lowest neighbor port priority
- If that ties, lowest neighbor port number
- Every port that is not a root port of designated port is put in a Blocking State
Downfall of STP -- Convergence
- The time it takes to do the work and become stable
Timers - Default (RSTP addresses the delay of convergence)
- Hello
- Every 2 seconds
- Lets everyone know everything is still alive
- MaxAge
- 10x Hello timer by default (20 seconds)
- The time the switch will wait before it realizes something is wrong
- Forward Delay
- 15 seconds
- The time between the Listening and Learning state
thanks a lot
Thanks sir
Thank you!
Much appreciated!
You are just the best! Thank you
I have never ever seen this kind of clear explanations... this is awesome... keep it up...
Thanks Dakshina!
minute 9.58(32768 or 32769)??@@Certbros
@@bardo4860 it's 32769. 32768+vlan. Default vlan is 1
@@bardo4860 I wondered too but below is an explanation
@@jeevankumar-mr6zn Thanks
This will forever be the best STP breakdown out there.
"Now you may not notice, the switches are arrogant * * * *'s, they all think they should be the root bridge" They bloody well are you legend! Watched this 2 times and it all clicked right into place, also because of this legendary quote i will probably not forget this! Thx so very much!
I came here to comment this
Time: Your video was longer than other Spanning Tree informative videos but your video has more information. My time watching your video was time well spent.
Thanks man!
It's 0549 and its usually really quiet when I study this early in the morning, and the "Arrogant ****" came out of nowhere!! Educational and HILARIOUS, now I have to subscribe!
I was watching this video... and that comment got me like a curveball. He said it so straightforward yet out of nowhere.
it's reason why I'm subscribing, and why I'm in the comment section lol
I was let down by my local college by not having teachers to teach networking. I had to do the learning all by myself to get my networking specialisation. Your channel is like treasure to me. Such complex topics explained really beautifully. Thanks guys for making this free!
This is definitely the best explanation of STP I've ever watched. I feel like I actually know something more now instead of being more lost.
Thanks! Glad it helped!
This is the best and most straightforward breakdown of this topic I've ever seen. I was struggling even with the excellent Wendell book. I truly hope you continue making more videos like these! It's invaluable
Thanks! Working on the next lot
@@Certbros Mr can you please give me your phone number and your E mail because I have a question that I don't know how to solve it only one question
agreed with this. the book references illustrations on previous pages. doesnt help for people with ADD constantly flipping back and forth while trying to focus on the content lol
@@abdulrahmanismailali1064 Bruh......
your explanations are like the computer in the film Matrix that people connect behind their heads.
After watching the video you become an expert in the stuff.
"I know spanning tree"
@@Certbros Top Tier Reply
Thank you, you condensed my doctor's 2 hour lecture into twenty minutes. You explained the topic very well; I enjoyed the mild humor, this video is great.
Happy to hear it! Once you learn the process, it becomes pretty straightforward. Good luck!
My God! I cannot believe I actually understood STP. I do not have a background in networking and have always struggled with understanding network concepts. I am very grateful to you for making these videos. Thank you and keep them coming!
Thanks Nikhil! Glad it helped you out.
You clarified this subject for me after I spent almost a week banging my head against the wall. Thank you so much. Thank you for the humorous *bleep* with the arrogant router comment. Made my day.
Good to hear it helped!
This is one of the best Network Tech vids I've ever seen. Not only was each concept clearly explained, but the visual aid for each step of the STP process was outstanding and clear as well.
Thanks Alex!!
Amazing analysis!! Such a high level networking subject, that too many people mess up, is analysed here in such a way that, even a 10 years old child would do understand. I wish you were my teacher, and I was present in your teaching classrooms. Education needs teachers like you. Thank you!
Thanks for the support Yiannis! Good to hear the video helped!
I'm amazed by how clearly you've explained it. Also you made me chuckle a couple of times. Props for that. Thank you very much for making this video!!
Thanks for the comment Juan. You're welcome
the best explanation of STP on the internet
That will be written on my gravestone 😂
Hi, I've recently bought your course for Ccna, 30% through so far and I adore it. The lab work has definitely helped me define the knowledge of the lessons and keep the skills in ny head through trial and error.
Thank you very much! Really happy to hear you're enjoying the course. More content will be added very soon.
Very clear step by step explanation, caught by surprise of your sense of humor. Keep it up :)
Haha thanks Nick!
This is an extremely well put together presentation on STP. This will definitely help me to get many of those STP questions on the CCNA exam correct. Thank you for sharing! You rock!
Well worth subscribing to someone who makes such clear explanations. Unlike some others.
Thanks Brian
unexpected laugh at 10:04
HAHA! Thanks man!
That made me laugh so hard my headphones fell off at work lol
I laughed so hard at it XD
Much funnier I think is 12:28
Oh man, I so needed that after frying my brain today learning SPT for the first time. Thank you, sincerely.
"You may not notice, but switches are arrogant ***"... Best discription of a switch, ever.
Hahaha!
I prefer hearing to reading things at times because I usually read to relax. Plus I can listen while at work so it constantly refreshes in my head. Thank you guys.
Thanks Anthony! Glad you liked it!
This was by far the greatest STP explanation that I have watched. Great work guys. Keep it up. And quality was superb too.
Thanks Mohammad!!! Appreciate your support bro!
Thank you so much for this lucid explanation. STP for me previously was a nightmare. Your video is exactly what I needed to get over this scarecrow!
Eugene Che, CCNA student writing from Buea Cameroon, Central Africa.
Thanks Eugene! STP can be confusing!
Love that you put where you're from! Thanks form England!
I have to agree with the consensus here. Your videos are awesome, informative, and helpful. The best part is it's in clear to understand ENGLISH. Other videos are in broken English and it makes already difficult to understand concepts even more difficult. Thanks for all of your hard work and wish me luck on my exam.
Thanks!! Glad you liked the videos!
I have never ever seen this kind of clear explanations... this is just perfect and thank you very much
Thanks Paulos!! Glad to hear it!
Love the quick math you did there at 12:29
Thanks! It took a few takes to get it right 🤣
@@Certbros haha
This best and simplest explanation video of STP I have ever seen...thank you so much...
You're welcome Ragesh. Good to hear it helped you out
I loved your Clear and Precise EXPLANATIONS. Good job. Pls don't stop. Thank you for this.
This is so very clearly explained I just don’t know what to say but WoW Well Explained and Thanks!
You have an amazing talent to teach others these network concepts. I learned so much from you. Thank you BRO!
I’ve watched a lot of videos and on this topic, this explanation is far more in-depth explanation and understanding. And the kind of video I’m looking for that gives understanding. I’ll have to rewatch it, but definitely thanks for these kind of detail understanding videos. People that really want to learn and understand this stuff appreciate these kind of videos.
Thanks Ardent! Glad to hear this helped you out
Thank you. Your videos are better than my $2,500, $60, $1,200, or $10 classes. Wish I would have went here to begin with.
Awesome thanks Sean!
This video explain it all quite perfectly, and is quite entertaining to watch and learn at the same time, the graphics and animation is clean, and the narrator has a special sense of humor too
Thanks Justin! Really appreciate the comment! Glad you liked it. 👍
I am preparing to take Huawei R-S Certification. And a lot of videos explain how to implement in the Switche OS. But none of them explain how it really works like you guys do. Very cool video. Great Job.
HOW HAVE I ONLY NOW FOUND YOURE CHANEL????? this is so well explained! Im studying IT and struggle with learning youre so good at explaining thank you!
Awesome!!! it is the shortest and clear video explanation of STP that I never seen. Congratulations!!! and tanks.
Thanks Daniel!
This really help connects everything from the book and pieced them together, will try to watch the video a few more times to nail this down, thank you!!!
Thanks Eric. Glad it was helpful! STP can be pretty sticky at first. Keep going and you will nail it.
damn! this is by far the best and clear explanation of STP I've ever seen. THANKS MAN
Thanks Bashir! Appreciate it 👍
Very useful, as was the OSPF video. Found the Cisco online material a bit confusing. I'm glad I found this channel
Great to hear! Glad to have you.
I have so much confusion and after watching your animated videos very crispal clear videos
Thank you bro
We need more videos like this
Please don't stop posting it
Thank you
Thank you Kiran! Really glad you liked the videos 👍
Best STP explanation i have seen so far! Thanks for the great video.
Thanks Marios!
wow!
such a crisp and pretty straight explanations i have ever seen in this topic 👍
Thanks! Appreciate it 👍
This is very good! One thing I personally would like to see though would be more elaborate explanations to confirm our understandings of the concepts. For example, when explaimg the root bridge election, it would help to hear exactly why Switch A won the election to root bridge - bc the priority numbers were all a tie, so it then fell to the MAC addresses to be the deciding factors. Bc S-A had the lowest MAC address, it was the winner; aaaaa was lower than bbbbb and cccc on switches B & C. I LIKE the simplicity of you graphics and the absence of needess port and vlan numbers which in the beginning are unnecessary. THANKS AGAIN!
Thank you. I was looking for an explanation in the comments. Sadly that's missing in the video.
best video about STP, pleaze keep uploading the other ccna videos through the animation. God bless you
Thanks Yasir. A lot more videos planned for this year.
An excellent explanation. I am stuck with this topic and just by playing this once, -all questions are cleared now ! Thanks for the great explanation
Awesome man keep going!
Some of the best explanations i've seen for these topics are on your channel! Keep it up!
Thanks Zeam
Hi there, we just covered this Video in our German IT class. Thanks for uploading this!
That's awesome!!! Tell your class I say hi!
Brilliant! Best explanation I've seen of STP! Keep up the great work!
Thanks man!!
Fixing to have a skills assessment done for a job promotion and this helped a ton! Very informative! Thank you!
Thanks Preston! Did you get the promotion?
From my understanding, it's the lowest local port priority then the lowest local port number (For designated port roles). It behaves this way when you test it.
4. Elect a Designated Port
Lowest root cost
Lowest BID
Lowest internal port priority
Lowest internal port number
"Note: Two additional tiebreakers are needed in some cases, although these would be unlikely today. A single switch can connect two or more interfaces to the same collision domain by connecting to a hub. In that case, the one switch hears its own BPDUs. So, if a switch ties with itself, two additional tiebreakers are used: the lowest interface STP priority and, if that ties, the lowest internal interface number." Cisco Press Book 200-105 Page 54.
Lowest root cost
Lowest BID
Lowest sender port priority
Lowest sender port number
If all else fails (like connecting to a hub) it will use its lowest local port number.
CertBros thanks man! This made it click! Those last two only happen with a hub. It makes sense that the best sender gets that role. Each switch can't select that role otherwise you'd end up with multiple designated ports on the same collision domain. XD
Glad it helped. Subscribed to your channel
The explanation is just mind blowing, easy to comprehend!!!!
Once testing centers are open again I will sit for my CCNA. This was a great video.
Thanks Mike! Haven't you heard? Cisco now let's you take exams from home!
CertBros ahhhhh I have now. www.cisco.com/c/en/us/training-events/training-certifications/online-exam-proctoring.html
I felt your physical presence when you turned the page.
👀
@@Certbros did u seriously turn the page to see the result of 4+0 HHHHHHH
That beep when he said that switches are arrogant f**** made me wanna learn this stuff even more. :p
Haha!
I absolutely love this channel. I'll study the concept via another video provider that is much more technical, then solidify with reading. I'll reward myself after all of that and come here for a brief simple overview of the concept and have it solidified. Now I know that Switches are arrogant ****
Hahah! 🤣 Thanks Brandon, appreciate it! But who's this other video provider that's way more technical?!?! 😒
@@Certbros CBT Nuggets, I'm gonna need you guys to put out more vids please!
amazing, i learn through diagrams and examples like this. Makes it so much easier to picture in my head. I can't learn from text alone.
I was waiting the whole video for hear something funny
and I wasn't ready for it damn it ! 9:56
lmao lol
🤣
Very clear explanation.
In case someone has trouble understanding this, I would suggest learning first these subjects:
MAC table / CAM table
Broadcast frame
Flooding Unicast frame
Guys... this is really good stuff! struggled to understand basic spanning tree and it cost me my first IDNA2 attempt. This is so clear and easy to understand. Thank you. Keep it up.
Spanning tree is a big part of CCNA! Keep at it!
Really appreciate the explanation of STP. Save me an headache..
No problem at all. Glad it helped!
This is the best vid ever.... Never laughed soo hard listening to a lesson
This was good. Very clear. Now i know where to go when i get totally lost in the reading.
Thanks Tommy!
I never understood STP when I actually had access to Cisco's netacad, the instructor I had was terrible as well, so definitely didn't help.
Now, after watching the video just once and scribbling some notes, I feel as though I actually know what's going on! Thanks!
can you please explain about the Designated Port clearly by using more than 3 switch?
i was hoping for this as well, the explanation of designated port was very lacking. i don’t understand what a designated port is or what it does. could use some more explanation here
That was a lot but conveyed in a very clear and comprehensive manner. Thank you very much!
Great to hear you liked the video Antonio! Thanks for the comment.
10:03
I was not expecting that 😂
😂
incredible. i wish you were my networking instructor lmao it would be so much easier to understand things with your method of explanation and pronunciation.
Very concise and accurate description I couldn't of hit that subscribe button faster
Haha thanks Adrian 👊
Thanks for making the process simple to understand.
No problem Lisa! Thanks for the comment!
FYI Viewers... The STP default value is 32768 - not 32769 - the video has a typo, the narration is correct. - Great Explanation!
Thank you for letting us know...
Yes correct but by default vlan is 1 so it's 32769😊
True
Helpful information. Thanks so much.
I understood clearly STP after watching this video.
Thumbs up👍👍👍
Thank you for the detailed information
it was great to see a video with suhc a depth on the topic
Amazing, I've been trying to get me head around it for a couple of days now. This was a godsend
Thanks Andrew! It's pretty simple when you break it down.
Thats actually rly high quality learning course
Great Video, took me about a day to go through it and fully understand it. Thanks for the animations, they really help.
Thanks. Glad it helped you out!
This video was very clear and informative. Thank you for taking the time to make and post it. Great work!
Thanks for taking the time to comment!
Brilliant and very clear explanation. Thank you
"....switches are arrogant #$*@s" is where I decided to subscribe.
Arrogant switches 🙂 Great explanation of STP
Very well done, helped me understand the topic and it has been a while since I went through this at school. Thank you for making it available.
Thanks Robert! Glad you liked it.
Extremely helpful - thank you! :)
In particular I appreciate the way you explain the concepts in very simplistic terms first, followed by then explaining an issue that happen... how the issue would happen... and then how that issue is addressed.
Then you move on to explain how yet a different issue could happen - and again explain what would happen, etc.
By doing it this way it allows viewers to understand the concepts, but also recognize if they are having the issues you explain as potential issues.
Thanks again! :)
PS. perhaps I missed it... but do you have any videos on VLT Fault Domains?
Your videos are awsome!! you explain really good the information and I can easily learn with them! thanks
Thanks Hermes!
love you video! the animations makes it so easy to understand. amazing job guys keep it up!
Thank you! Made such a complex topic simple
great work thanks,i spend time trying to understand but you took me in there in 20mins
Thanks. Glad you liked the video.
Thank You Certbros. You are my type of bros.
I LOVE THIS !! SUBSCRIBED! I AM LEARNING TO BE A BETTER TECHNICIAN BECAUSE OF YOUR VIDEOS.
Thanks! More videos coming soon.
I came here studying for 200-301 because i dont fully understand some of keith barkers topics. The way you simplify/explain things is really good.
Thanks Fernan! More videos coming!
Awesome! It can't be clearer than this. Thank you.
Thanks!
Love u guys , I'm already waiting for your CCNA course
Thanks Mauricio! I really appreciate your support. 🙏
You can get the course as a pre-launch if you'rere interested, the link is in the description.
Good luck with your studies!
It made me laugh so hard when you nonchalantly cussed. It was unexpected and enjoyable.
Haha thanks!
This channel is top notch. Thanks for the videos!
Awesome ! Clear and thoughtful explanation!
Thanks ryAN!
Thank you 🙏 so much. Very good explanation and very clear. Keep going...
Thank you Amir! Really appreciate it 👌
Thanks for the nice presentation.Really helpful .
Glad it was helpful!
This was very informative, Thanks for making this. You guys are awesome !!!!!
Thanks!
Very helpful to get the mecanism of STP. Thanks