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- เผยแพร่เมื่อ 20 ต.ค. 2024
- Someone asked a question about Spanning Tree Protocol (STP/RSTP) during one of my live streams...so we went there! This is probably the most confusing piece of understanding how Spanning Tree works. You might want to watch this a few times!
Fun links for you:
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#KeepingITSimple
1 week of watching videos and asking teachers to explain this to me, and you cleared this topic up for me in 15 minutes. Amazing!
Stumbled on this while killing time, you got me through my CCNA many years ago with CBT Nuggets. Such an infectious personality, cheers Jeremy hope you are doing well.
too much infectious.
Some people are born to teach. You sir are one of ‘em. Easy to understand and follow, diagram are clear, on subject and point made, clear and if I may add, exciting tone of voice. Trust me, I’ve watched many popular TH-camr on STP, I’d have to say I step away a bit confused even though I actually understand how STP works!
I sincerely thank you for the GREAT explanation of STP, I tried a lot of STP tutorials on youtube,
you are the first who makes me truely understand this complex idea. Big thank you.
Couldn't agree more!! GREAT!!
I first watched your CBT Nuggets back in 2009. Those nuggets changed my life. I now make a ton of money because how you clearly explained switching and routing in a way that made me want to be a Network Engineer, but most importantly it made me excited to learn more and more and more about networks. I learned so much advanced networking over the years, every so often I have to go back to the fundamentals such as Spanning Tree to ensure I never lose how it works. Great 20 minute video!!!
Darrel how much you make as network engineer
Darrel I am studying for my CCNA exam.i am in Africa. please can the CCNA helps change my life?
@@fritzdamiendengambog9169 I have 2 remote jobs from 2 different companies. One pays me $113k and the other pays me $136k.
@@fritzdamiendengambog9169 Yes the CCNA can change your life.
Love it Darrel - glad to know I've been a part of your journey.
This is a Masterpiece. For figuring out STP
Dude, you are the BEST! I'm super non-technical, but I'm studying for Network+. I just started learning about STP and I thought my eyes were going to melt. I've looked at countless videos and read countless articles on it and almost decided that maybe I could afford to miss any STP-related questions if I did really good on the rest of the test. I decided to give it one last shot and stumbled across this video. It's like the clouds parted and a brilliant celestial light shone down upon me and bathed me in the resplendent glory of knowledge! When I write my memoirs and reach this milestone I'm giving you a footnote. THANK YOU!
Ha! Best comment ever - thank you for taking the time to write it; glad to be part of your celestial light! :o)
Great, I always come back here to watch it again, STP is definetely hard to figure out
I dont mean to be off topic but does someone know of a tool to log back into an Instagram account..?
I somehow lost the password. I love any help you can give me!
@Remington Zechariah instablaster ;)
@Roberto Torin Thanks so much for your reply. I found the site thru google and im waiting for the hacking stuff atm.
Takes quite some time so I will reply here later when my account password hopefully is recovered.
This was extremely valuable. I'm trying to speedrun getting a CCNA certification starting with very little practical experience and I could not figure out "designated ports" from the book or the lecture content I was provided. The way you covered it is extremely clear and concise. This channel will be my first resource if I get stumped again and I've put a link to this video in my notes to re-watch when I'm reviewing for the exam. Thank you.
Did you pass?? What study tips do you recommend? Currently working through Neil Andersons course on Udemy. Only 1 section left!
Currently studying for CCNA been using mainly Jeremys IT Lab, but STP got me stumped for a few days. Been going through all other resources like OCG & Neil Anderson & various other YT resources- they just weren't clicking. I have to say your explanation made it made it much clearer for me. SO glad I stumbled upon your video.. Thank you!!!
same
I really appreciate this video, it simplified 3 quarters of school and hours of tutorials on TH-cam, but you didn't make any clarification as to how interface ID gets calculated in a tie among BIDs. Edit: lol, in the last minute and a half you discussed it. Thank you.
Keep it up bro. So good, I am from Costa Rica and it is a little more difficult because, we study it in spanish and the CCNA is in english. But I undestood every single thing...THANKS
Great video and simple explanation. I always liked your teaching style. Loved the Bob Ross "reference"
Spanning Tree: creating happy little trees in businesses everywhere.
@@Viatto lol
Thank you for the clear and understandable explanation!
Watching this video to the end on a Wednesday isn’t a good idea, why isn’t it Friday 🥲
Great stuff. This cleared up so many questions! Thank you
I love this stuff. Spanning Tree is something I've always been good with. Like Jeremy says, just remember those rules and you will understand how it operates. Practice. Practice. Practice.
One of the best STP videos I've seen ever
Been struggling on this topic but you help to clearify it all! Tahk you!
Why I didn't found this 4 months earlier?... Thank you so much, great explanation.
Very informative one. Thank you Jeremy for all the valuable content you made.
I especially love the waaaaaaaaaa, khrr- part of explaining why the need for STP. Anyway, thanks for a great video on topic!
You and Keith are godsent. Thank you for the motivation and knowledge. You change many more lives then you think.
Thank you. I have a good understanding of SPT now because of you. I appreciate the help. Liked and subscribed. Good day to you Sir.
Thank you for this simple clear explanation on spanning tree. I have been studying for the CCNA and this helped alot!
You're very welcome!
Cee pretty already write
I’m a little bit confused.
From 8:35 - 9:25, you looked at the neighbor switch BID to find out which path to take for the root port.
From 12:30 - 13:10, you looked at the own switch BID to find out which interface is the designated port.
Does that mean if I want to know the root port, I have to look at neighbor switch BID and if I want to know designated port, I have to look at the switch’s own BID?
Always loved your explanations man. I have ICND1 and 2 cds you made sometime back, always learning - awesome deliveries
Thanks for this. I'm brushing up for my ICND2 re-cert and this is a great way to explain STP.
Happy to help!
we owe you money for this.
GREAT explanation, thanks 👍
amazing explanation , thank you so much
wow thanks man, helped a lot with my preparing for my exam!
Thank you and very informative always.. take care bless you
as a future network engineer (still studying), THANK YOU
amazing way to present this ! great
Hello Jeremy
I have question on which layer BGP works..
Could you please make video on it..
I will be thankful.. expecting your acknowledgement
Thank you so so so so much. You are the best!
Maybe I’m overthinking it. Lol, but what if you have that redundant pair connection between two switches and they cross ports form 1-2.
How would it calculate that?
Beat explanation out there !! Thanks!!
Thank you so much! You helped me a lot
I am very new to routing and switching, so sorry if this is a dumb question. Why did you choose a distribution switch as the root instead of a core switch?
That little zombie analogy tho.. so hilarious
Hi Guys,
Let me ask a question, would spanning-tree still block/stop the loop if another pair of type of switch has spanning-tree disabled. The loop is on their end, say a cross-connect between the two switches ?
SO good at drawing... and WRITING!
Thank you! Cheers!
Hi Thanks a lot for this tutorial..."The Best"
I had a question at time stamp 19:12
I was wondering how can bridge id ever be same...as bridge Id is made up of mac address and priority...and as mentioned in the start of ur video..mac address can't be changed in spanning tree so there will be always a difference in bridge id amongst the switches...so there won't be any tie in bridge Id ...kindly reply..."how can and a Bridge id be same at any time... does that situation ever occurs".. thank you...
Bridge id consists of 2 parts. Priority(can be designated or default number) and mac address with lowest value.
-determining root port (of non root bridge) look at paths to the root bridge. The path with lowest cost is what ur after. There can be a tie here or a distinct "winner" when comparing the available paths from non root bridge to the root bridge.
He answers how the Bridge ID can be tied just after, in the second example.
If you have just two switches with two cables between them, one switch will be the root bridge and the other will see two links to it with the same cost and same bridge ID. In that case it defaults to the link with the lowest port number.
This could actually occur anywhere on the network where one switch has two cables going to another switch.
I would say STP is not about stopping loops. It's about being able to make your network redundant. It also does stop loops. But that happens also outside your topology. Inside your topology you are just using STP to make your links failover when another link fails. If STP is setup correctly, it will NEVER stop 'loops' in your topology. STP can be used for security outside your topology, to stop people from being able to connect switches in circle, outside your topology, and broadcast storm into your network, it will stop that by shooting BPDU out of your edge ports. But it will NEVER and was NEVER designed to just stop 'loops'. Its about REDUNDANCY.
that was pretty legit. I think its the RP and DP selection that bores people and they lose focus and end up in lala land hating stp or not understanding it.
For rule 3 isn't it the lowest port ID on the destination bridge and not the local bridge?
Do BPDUs only flow through one port in a link aggregation group?
In one of our hotel networks we are running 10 gig between the IDFs (we had a lot of fun with spanning-tree during the install. I just helped install and configure the switches). I was chewing through some of the Cisco forums, and one individual said that the cost of a 10 gig link is "2" (community.cisco.com/t5/switching/spanning-tree-port-cost-10-ggps/td-p/1012523)
Is that the case?
Thank you in advance.
Thanks, helped clarify stp
Great video, thank you very much :)
Thank you so much!!!
Amazing job
8:44 Root Port
9:50 Designated Port
Great teacher thank you a lot
How did you find the blocked ports...??
First, you need to find the root ports and then the designated ports. Once found, the remaining ports would be blocked ports.
thank you
Do you also teach on Khan Academy? Your voice is extremely familiar but I can't place where I know it from.
thank you sir
Thanks, your awesome
Jeremy is great!
Brilliant!!
Awesome video.
Not the point of this video, but what is the point of the distribution layer in this diagram? Seems like connecting Access directly to Core here would be simpler and lose no value.
Going to the STP question, this all changes if your core layer is running VSS correct?
Jeremy please send some 1 hour notice when you will be online. i really want to be online when you live
Notice served. Less than 1 hour until we begin CCNA Study Session #7.
www.twitch.tv/jeremycioara
Cool, cool-cool-cool
Spanning Tree Protocol! :D
I'm STILL watching videos on STP!
You're the best
Cool!)
Cool video from cool person, word from Fan😍😊
Fortaleza.
There's a mistake in one of the rules.
Is cbt nuggets dining ? 😭
wondering about the three people how clicked dislike
Thank you for this!