Spanning Tree Protocol (STP) | Cisco CCNA 200-301

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.

INCREDIBLE

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.

Thank you sir

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.

aight... I been struggling with spanning tree. came on to find some other sources to figure this out. watched this and did some practice and literally said "Bro do I understand spanning tree now"

I want this T-shirt! 😁

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!

If four switches are part of STP in a segment. How many switches will have blocking ports?

A wonderful human being with soo much excitement with teaching…

Awesome video. you really helped me understand DP ports. Thanks

Does STP work between switches that are not the same brand?

thank u but its really making my head spin and spin like a loop trying to understand this stp

brill just brill

I love you man

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!)

What exactly do you mean by "Cost"? The shortest path?

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.

What software you use to write?

Dude thank you so so much for posting all of these videos. You have taught me so much

Very helpful!

I might not participate in your live streams but I do watch them 3yrs after they're made! 😁

This guy is amazing.

Liked it. A very good explanation

I love the shirt and it is pretty darn cool

Great+

Excellent explanation. Many thanks for sharing Keith, God bless you.

thanky infinte man!!!

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 reply please !!!
I want to do the CCT 100-490 FIRST , SHOULD I !? OR DONT WASTE TIME ?

Keith, would you mind sharing briefly how your lab setup is like?

Hands down one of the best masters of the network industries

Keith is a legend!!!!!!!!!!!

This show stopper for STP for me. Everything is explained very well. Interesting part is you can see BPDUs :)

so this protocol is similar to active terminators on an automotive canbus network?

You have the best pedagogy of anyone in the IT teaching space. Your mnemonics are so memorable.

What is the port number for STP? UDP or TCP 128? Or nothing?

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

Thank you for explaining difficult topics in easy words!

best video ever for STP..EVEN A NEWBIE CAN UNDERSTAND THE CONCEPTS AFTER THE VIDEO.

Very well explained, thank you and the entire CBT Nuggets team. The kings of the Internet!

Buenísimo loko

Great! This is a very engaging and informative video.