Everything Switches do - Part 1 - Networking Fundamentals

Everything Switches do - Part 1 - Networking Fundamentals - Lesson 4

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3 жыл бұрын

Switching is the process of facilitating communication within a network. Switches are simply device's whose primary purpose is Switching.
This definition is intentionally worded as such because there are many devices that claim to do "switching" -- and all of those devices will follow the same rules and processes that Switches do to facilitate communication within a network.
In this video we discuss Switches as L2 devices, MAC address tables, and the three fundamental switch actions: Learning, Flooding, Forwarding. We then compare and contrast the act of sending data THROUGH a switch vs sending data TO a switch.
=== Networking Fundamentals - Module 1 ===
Lesson 1 - Network Devices
Part 1: • Network Devices - Host...
Part 2: • Hub, Bridge, Switch, R...
Lesson 2 - OSI Model
Part 1: • OSI Model: A Practical...
Part 2: • OSI Model: A Practical...
Lesson 3 - Everything Hosts to do speak on the Internet
Part 1: • Everything Hosts do to...
Part 2: • Everything Hosts do to...
Lesson 4 - Everything Switches do to facilitate communication
Part 1: • Everything Switches do...
Part 2: • Everything Switches do...
Lesson 5 - Everything Routers do to facilitate communication
Part 1: • Everything Routers do ...
Part 2: • Everything Routers do ...
Part 3: • Router Hierarchies and...
Lesson 6 - Networking Protocols
- • Network Protocols - AR...
- ARP, FTP, SMTP, HTTP, SSL, TLS, HTTPS, DNS, DHCP
- Four items MUST be configured for Internet Connectivity
Lesson 7 - How Data moves through the Internet
- • How Data moves through...
- Interview question: What happens when you type "site.com" into a web browser?
---
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---
🖧 Full Networking Fundamentals series (Module 1 - all FREE):
• Networking Fundamentals
📇 Details about the Full Networking Fundamentals Course:
www.practicalnetworking.net/i...
📜 Studying for your CCNA?
www.practicalnetworking.net/i...
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#networking #ccna #network #osi #switches #routers

Пікірлер: 290

@PracticalNetworking 3 жыл бұрын

🚨📢 Update: *Full Course is Under Construction* --> pracnet.net/networking 👉👉 Enroll now for *discounted early access* to the course and a chance to help shape its content. 📺▶ Module 1 Playlist - Networking Fundamentals: kzfaq.info/sun/PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi 💭💬 Join us on Discord: pracnet.net/discord _--- Original Comment below: ---_ *Full Course Status: Wait and See.* Hopefully you've come to realize that I put _a lot_ of effort into the content I create. I'm not a course creator that will simply turn on the screen recording and ramble, then call that teaching. I meticulously plan _every_ module and lesson to _maximize the learning and value_ for the student. To that end, it takes me a while to put together courses. If I'm going to dedicate the time, resources, and energy to putting this full course together, I need to know that there is enough interest in the full course. I'm rating that by how wide a reach this series achieves. *If you are interested in seeing the full course developed, then the best way to bring that to fruition is to spread the word about this content* . By itself it already conveys _a lot_ of value. So sharing even just the 7 lessons (13 videos) in this series will surely help whoever you share it with. Plus ... many online communities would greatly benefit from these videos. Think of all the Internet points you could acquire if you shared this series (karma, likes, follows, etc.) 😉 Use this link to share the full series: kzfaq.info/sun/PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi Also, if you share it on Twitter or LinkedIn, please tag me =): twitter.com/ed_pracnet/ www.linkedin.com/in/eharmoush/

@adedejiemmanuel1 3 жыл бұрын

What happens in your Discord?

@PracticalNetworking 3 жыл бұрын

@@adedejiemmanuel1 It's just a place for people learning networking to gather. I'm in there often enough if you also want to ask follow on questions. I also use Discord for the student chat for students of my courses: classes.pracnet.net/

@kiwi2257 2 жыл бұрын

There are a lot of great networking tutorials on KZfaq but this series is by far the best. You explain everything so clearly and with great examples to help reinforce the knowledge. Thank you so much for taking the time to make these videos, they are absolutely fantastic.

@PracticalNetworking 2 жыл бұрын

Thank you for the kind words, Kiwi =) Glad you enjoyed it. Please help me spread the word about this content!

@elvismimbayuniseh3978 2 жыл бұрын

I agree with you Kiwi. This is a final destination for me

@CPT_Pepper Жыл бұрын

😁🤓AWESOME and THANK you!! The animation makes this like Saturday morning cartoons I love!😊

@wylie500 2 жыл бұрын

This course is one of the best tutorials I've seen. Thanks for all your effort.

@PracticalNetworking 2 жыл бұрын

Thank you, Pete. I appreciate the kind words. Could you do me a favor? Do you mind sharing this video on Linked In, Reddit, Facebook, or any other social media you use? As an independent creator, that would be an _enormous_ help, and I would appreciate it _greatly_ .

@TolulopeMakinde-vy4qd Жыл бұрын

This series is the best networking tutorial I have seen so far on the internet. Thanks for doing a great Job.

@kaidenqi5703 Жыл бұрын

The best networking courses I have ever seen so far!! Thank you very much!!!

@coolnerd8056 2 жыл бұрын

Your genius at explaining something in such simplicity is out of this world. Thank God very much for your existence.

@PracticalNetworking 2 жыл бұрын

Thanks again, CoolNerd =). Glad you're enjoying this series!

@coolnerd8056 2 жыл бұрын

@@PracticalNetworking Of course!!! Thank you so much!

@omarberraqui8193 Ай бұрын

the best ever to explain Networking Fundamentals period

@adedejiemmanuel1 2 жыл бұрын

I am watching this again, like new wine, its evergreen. Thank you.

@adedejiemmanuel1 3 жыл бұрын

You are the best.

@aruizsilva 3 жыл бұрын

Thanks again man. Clear, well structured, and to the point. Perfect for a newbie.

@PracticalNetworking 3 жыл бұрын

You're welcome, Antonio. Glad you enjoyed the content!

@siddhiparab5518 10 ай бұрын

Your videos are really great to understand networking flow. I am really happy that this channel exists

@matthernandez5481 7 ай бұрын

Criminal you're not doing the entire course. I'm entering back into university and this is such a flawless tutorial from top to bottom. I'd have no issue paying for the full course.

@PracticalNetworking 7 ай бұрын

The full course will be completed. I'm 100% committed to it. Rest assured =)

@homelylad 6 ай бұрын

Please do already! 😢❤@@PracticalNetworking

@audionerd8821 4 ай бұрын

@@PracticalNetworkingwe really do appreciate you for committing to it! Great course 👍🏾

@djjayem100 Жыл бұрын

Please continue creating more networking videos. You explain it in such a way that I always understand by the end. The best out there for me. Would love to see you cover all the aspects. Thanks for spending the time to put these together for free!

@train4905 Жыл бұрын

Exellent😊

@KA-fl6qt 3 жыл бұрын

Learn,flood and forward. i will never forget this about switches. Amazing explanation. I can not skip any of these videos .

@PracticalNetworking 3 жыл бұрын

Thank you, Kofi =)

@bbqconstruct9641 Ай бұрын

After finishing the playlist, I will be purchasing the Full Course to extend my gratitude to Ed. I'm sure the TLS Deep Dive won't be too far off too!

@MadaRook Ай бұрын

I really appreciate your lessons that you have created.

@claudine7773 Жыл бұрын

This is fantastic! So simple and easily explained - thank you.

@gnuPirate 5 ай бұрын

Crystal clear explanations and definitions of everything here. I think it would be difficult to NOT understand the concepts after you've explained them. THANKS Ed! (:

@kirankumar-sy5xb 9 ай бұрын

By far one of the best series on Networking I can say. Whoever wants to know the basic and in detail concepts of networking can simply ignore other contents on you tube and just watch this one. It gives you all necessary knowledge with great examples. Hey @PracticalNetworking, Thank you so much for posting this tutorial and helping us in understanding the concepts in simple and best way. all content I was searching about networking in the past two days, I have got it in this series itself. I will definitely recommend this to others and share the videos as we.. Thanks once again for posting this kind of tutorials which are helping us a lot.

@nicolasgoubin 2 жыл бұрын

Okay. I knew nothing about communications and how internet worked in general. Your tutorial playlist on networking is GOLD, and i seriously mean it ! Now, i can think of how i can architecture my network at home, how i can create my personnal server and how i can connect to it... Even from another location, through internet ;) Thank you a LOT !!!

@PracticalNetworking 2 жыл бұрын

Whoa Nicolas, thanks for the kind note =). It's almost as of the intent of this series was to provide a *practical* explanation of *networking* . It's _almost_ as if that's the whole purpose of the channel ;) In any case, glad you got a lot out of it. =)

@clobbleglobble7501 6 ай бұрын

Great work. I watched it one time. I need watch it at least 3 times.

@amtawfik140 Жыл бұрын

This is amazing!! You are a great teacher. Thanks for your explanations so simple to understand

@jeytis72 Жыл бұрын

Excellent! You're kind of a computer networking wizard, very good at explaining how it works. Thanks for sharing your knowledge.

@PracticalNetworking Жыл бұрын

You're very welcome, Jeytis. Cheers!

@slobaivkovic8910 2 жыл бұрын

Finally some deeper explanation, I was really interested in MACs part ,and still simple, thank you!

@PracticalNetworking 2 жыл бұрын

Glad you enjoyed it. You're welcome!

@eyalshain5244 9 ай бұрын

thank you very much man!! love from Israel! your course is very helpful.

@parthamishra09 3 жыл бұрын

Amazing stuff. I just keep watching your videos from the time I discovered them.

@PracticalNetworking 3 жыл бұрын

Glad you like them!

@haroldhale3964 2 жыл бұрын

I'm "SWITCHING" my subscription and adding this channel. I'm "SWITCHING" my attitude about networking because this channel is 🔥💥💯.✌🏾😜

@PracticalNetworking 2 жыл бұрын

Love it =). Got a kick out of your comment. Glad you're enjoying this content, Harold.

@jaehyi2009 2 жыл бұрын

This is another excellent, succinct tutorial from Practical Networking!

@PracticalNetworking 2 жыл бұрын

@kaka3539 Ай бұрын

superb brother even a 3 year old child can understand this nice

@cecamix4711 11 ай бұрын

Thank you so much sir! Awesome explanation for every subject!

@lifeisbeautiful7882 2 жыл бұрын

One of the most practical series and so easy to understand difficult subject. Please create the full fundamental course, I think whoever will watch it, definitely get benefit from it. Also, if you can have some lesson on i.e Network types on VM, i.e. NAT, Host only etc work & How Kubernetes and WAN technology works in basic , then I will be grateful to you. Thanks a lot

@PracticalNetworking 2 жыл бұрын

@Naturalbirdvideo 3 жыл бұрын

Great Mentor !!Impressed by the way you teach. Please cover all switching and routing concepts with protocols

@PracticalNetworking 3 жыл бұрын

Routers are covered in the next few videos of the series =). Here's the full playlist: kzfaq.info/sun/PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi

@willgreat8384 5 ай бұрын

I can’t wait to jump into the subnetting mastery playlist …. I know u slam that shit!!!

@WrangleRz 10 ай бұрын

I've spent money on udemy to understand "nothing" (i mean i've learned the hard way with teachers explaining the "hard" and "complex" way" and i've found that u have the best wording to explain everything so easily and understandable. Its not easy to have this ability. >Thanks

@himanshubhusanrath212 Жыл бұрын

Exceptionally well explained !!!!! Thanks a ton ☺☺

@jackalineagborngwashi7620 Жыл бұрын

Very explicit! Thanks Sir.

@vladislavkaras491 2 жыл бұрын

Thank you for the video!

@WrestlingTournamentsDotCom Ай бұрын

Does it flood ports that are already listed in the MAC address table? That seems unnecessary. Really enjoying this series so far. Thank you.

@JimiShady111 3 жыл бұрын

The video is very useful! very well done, thank you and keep it up.

@PracticalNetworking 3 жыл бұрын

Thank you. Will do =)

@Marco-ls6ou 3 жыл бұрын

Great JOB! Right on POINT! Thanks a lot!

@PracticalNetworking 3 жыл бұрын

You're welcome!

@LordGelsin Ай бұрын

Great video! thanks to share

@onyxbackstrom3379 11 ай бұрын

Hey Practical Networking.. I just wanna let you know, that lately I've been trying to learn about networking to help better understand a career I want to go in. I am so thankful that you are here to help us learn about this. I am understanding practically everything (with research here and there) easily and I'm becoming more comfortable pursuing this kind of career. This is as far as I am now, and I want to say thank you again for providing us with this information and illustration. I have a lot of patience, and I have been doing the same job for almost 13 years now with fast food and I've always been interested in computers and technology since I was a kid, even automotive which may have some common deployment since cars are becoming more and more electronic. This seems like a fascinating field and I will keep pursuing it.

@PracticalNetworking 11 ай бұрын

Hi Onyx, thank you for taking the time to write out this comment. I am _thrilled_ that you are considering Networking as a career and I am honored that my videos have helped you in that journey. It is a very rewarding career with lots of opportunities, and I wish you all the best in finding them. Cheers, Onyx, and good luck!

@onyxbackstrom3379 11 ай бұрын

@@PracticalNetworking You're welcome sire and thank ya!

@biokode 10 ай бұрын

You can absolutely do it! I used to work odd jobs, gas stations, grocery stores, etc. having no education. Then I became unemployed and was on welfare for a while. That was the point when I decided to do something different, and I started pursuing the IT carreer. I now work as an IT consultant, working very comfortably from home most of the time, earning a decent wage. If I could do that, I think anyone could.

@cotyledon7597 Жыл бұрын

If you are not able to explain it to a six-year-old child, it means you don't understand it enough. YOU ARE THE MASTER OF YOUR CRAFT You could teach IT Network to a snail. For sure.

@PracticalNetworking Жыл бұрын

:) Thank you for the kind comment. Cheers, Natasha.

@alexandrkovalsky1711 Жыл бұрын

Great video!

@noxactis8011 2 ай бұрын

Preparing for an interview for second line (I know nothing about networking), this is a life saver 🥺

@PaulEllisBIGDATA 3 жыл бұрын

Outstanding!!!! Your teaching style, awesome keep videos coming

@PracticalNetworking 3 жыл бұрын

Thanks Paul. Thank you for your support =)

@WelMichael 10 ай бұрын

Very clear explanation you got a new subscriber and follower ❤.

@JuanJRonco Жыл бұрын

amazing clarity!

@PracticalNetworking Жыл бұрын

Thank you, Juan =)

@K4pitell 4 ай бұрын

Thank you for your work !

@train4905 Жыл бұрын

Absolutely awsome sir,

@farid6448 Жыл бұрын

Great job

@amvillamorjr Жыл бұрын

Thanks for this video. It is very helpful. I don't have an IT or Network background, but it helps me to learn about networking fundamentals.

@PracticalNetworking Жыл бұрын

Awesome! That was the purpose of this series. Glad you enjoyed it =)

@carlosporto8255 Жыл бұрын

Thanks for the effort. Its great content.

@nitinsahire 3 жыл бұрын

Waiting for remaining videos from same series. Great videos ! keep it up ... 👍

@PracticalNetworking 3 жыл бұрын

The next video in the series is available here: kzfaq.info/get/bejne/fZ13rLqbr9rOfqc.html Otherwise, another project has come up that has to take priority over these videos. Regretably, the videos on Routers and Routing will have to be pushed back a few weeks. Creating these videos takes significant time to design, record, and edit. I wouldn't want to rush the process at the possible cost of quality. For what it's worth, the series is loosely based on an article series I wrote some years back. If you need the info sooner, a lot of it is available here: www.practicalnetworking.net/series/packet-traveling/packet-traveling/

@ramakumarmurthy5527 4 ай бұрын

excellent narration

@4realphresh.x Жыл бұрын

Man, these videos are great!

@PracticalNetworking Жыл бұрын

Glad you're enjoying them =)

@ernestmbila5047 3 ай бұрын

ur a good teacher, thank you

@struanrobertson3417 2 ай бұрын

Very very good!

@vijaysiwan 6 ай бұрын

excellent explanation

@IliyaDamyanov 10 ай бұрын

Very good video.

@jaikishank 2 жыл бұрын

A very succinct explanation of a complicated concept with great illustration. Deeply appreciate the effort taken.

@PracticalNetworking 2 жыл бұрын

Thank you for the kind words =). Hope you enjoy the rest of the videos in the series as well!

@jaikishank 2 жыл бұрын

@@PracticalNetworking yes. I completed. I am not from a networking background and it was a great value addition for me. Your channel has been a Holy grail for me regarding networking. Many Thanks.

@PracticalNetworking 2 жыл бұрын

@@jaikishank I'm happy to hear my content has helped you in your journey. =). Could you do me a favor? Do you mind sharing this video on Linked In, Reddit, Twitter, Facebook, or any other social media you use / or amongst your peers? As an independent creator, that would be an _enormous_ help, and I would appreciate it _greatly_ .

@teleengineer Жыл бұрын

As usual outstanding explanation and wonderful teaching method...

@PracticalNetworking Жыл бұрын

Glad you enjoyed it, Ahsan.

@moularaoul643 Жыл бұрын

PERFECT!!!

@MrRay105 10 ай бұрын

You deserve an oscar award!! 👏 you

@gsanthoshfou 2 жыл бұрын

Best of the best explanation

@PracticalNetworking 2 жыл бұрын

Thank you, Santhosh =).

@stevepabb 2 жыл бұрын

Absolutely brilliant

@PracticalNetworking 2 жыл бұрын

Thank you, mary.

@---usr 8 ай бұрын

Well done, sir 👏

@PracticalNetworking 8 ай бұрын

Thank you for supporting the channel =) I'm thrilled that you enjoy this lesson !

@subee128 5 ай бұрын

Thank you very much

@learningchannel274 8 ай бұрын

Thank you!

@abfarah2769 3 жыл бұрын

Good explanation thank you

@PracticalNetworking 3 жыл бұрын

You are welcome

@parheliaa 2 жыл бұрын

Very good material

@PracticalNetworking 2 жыл бұрын

Thanks, Rafal

@darrellbandjar Жыл бұрын

whoever wrote the boring books on networking must not have a life at all.this explaisn WAAAAAYYYYY better then the books.

@akshayjadhav5150 11 ай бұрын

Thank you very much...

@vheron893 7 ай бұрын

Set speed to 0.75. Very smooth.

@braydenquinn5739 2 жыл бұрын

Awesome videos :)

@PracticalNetworking 2 жыл бұрын

Thank you!

@allan1827 2 жыл бұрын

Perfect for newbie.

@PracticalNetworking 2 жыл бұрын

Thank you, Allan =)

@jorgeaarceguzman7812 2 жыл бұрын

Thanks for this good video

@PracticalNetworking 2 жыл бұрын

You're welcome =)

@dvdgantt1 3 жыл бұрын

I like how the difference between talking thru the Switch vs speaking to the Switch to manage the LAN with SSH wss explained.

@PracticalNetworking 3 жыл бұрын

Glad you liked that part. It's a common place students get tripped up on so I wanted to call it out specifically. =)

@kalokali7711 2 жыл бұрын

one word to describe presentation and content: AWESOME! - subd channel for learning more - got here from David's B. channel🎓

@PracticalNetworking 2 жыл бұрын

Hi Kalo! Welcome to the channel. Glad to have you here =)

@AtaruMor0boshi 3 жыл бұрын

Very clear, thorough explanation, immensely useful for beginners!

@PracticalNetworking 3 жыл бұрын

Thank you. I'm glad you think so =)

@AtaruMor0boshi 3 жыл бұрын

@@PracticalNetworking well, just stating what's self evident. Thank you for your effort!

@justcurious1940 Жыл бұрын

Amazing channel , thank you for this free course , does the access-point works the same way as the switch ?

@akedintm Жыл бұрын

thank you, let's boost the algorithm!

@user-vu1ue4no1o 3 ай бұрын

bro is goated

@jr7000 2 жыл бұрын

Thanks!

@PracticalNetworking 2 жыл бұрын

Hi JR! Thanks for supporting the channel. Much appreciated, hope you got a lot out of this series.

@Fatima-pc8hb 3 ай бұрын

Thanks

@zeroday9551 5 ай бұрын

First of all I would like to thank you for posting such a great playlist on youtube for free. You are an amazing person. I got a question relating to this video. At 2:06 you mentioned that we can get rid of IPs on this layer. Let say, I'm going to ping computer 1 from computer 2 and are both in the same network connected via a switch. How can I ping computer 2 then If there's no IP? we can't ping a device using its MAC Address.

@PracticalNetworking 4 ай бұрын

You're very welcome, I'm thrilled you've enjoyed. Here when I said we can "get rid of anything IP related", I meant only in the illustration. In the background, however, IP is still required for communication. Remember in this video I was trying to remove all extra variables so we could focus purely on switches and what switches use to make forwarding decisions.

@zeroday9551 4 ай бұрын

@PracticalNetworking I understand. Thank you for clarification.

@AliTwaij Жыл бұрын

Blimey its getting complicated, thankyou

@PracticalNetworking Жыл бұрын

One step at a time, you'll get there =)

@antonyrichard369 2 жыл бұрын

Thank you is just enough 🙏🙏🙏🙏

@PracticalNetworking 2 жыл бұрын

@antonyrichard369 2 жыл бұрын

@@PracticalNetworking i am sorry .. I was about to put "Thank you is just not enough" .. typo 🙏 .. anyways .. continuing your lectures with full enthusiasm..

@PracticalNetworking 2 жыл бұрын

@@antonyrichard369 Glad to hear, Antony. I'm available for questions if needed =).

@nabilalanizi7457 2 жыл бұрын

Thank you

@PracticalNetworking 2 жыл бұрын

Welcome!

@jnyfah 3 жыл бұрын

Thank you ❤️

@PracticalNetworking 3 жыл бұрын

You're welcome!

@tedrostuumzghi5659 Жыл бұрын

Hi could you please help me about the address field of HDLC frame? one router sends an HDLC frame, the frame can go only one place: to the other end of the link. So, while HDLC has an address field so what's kind of address it uses and L2 like MAC address or L3 like lP address.

@gregcaceres6676 6 ай бұрын

So what if a destination host changes ports on a switch? The data gets sent to a ghost mac address via the old port. Would the switch get notice that it needs to update its ARP cache?

@naveenkumarm7339 2 жыл бұрын

Perfect explanation with visuals. Thank you so much for investment of time on this. One question here is acknowledgment of data received to a sender is happens automatically ?

@PracticalNetworking 2 жыл бұрын

Thank you! Acknowledgement of Data only occurs in TCP at L4. So it's "external" to everything in this series.

@naveenkumarm7339 2 жыл бұрын

@@PracticalNetworking okey thank you again

@Kemo___ Ай бұрын

What if we change the arrangement of hosts in different ports, will the MAC addresses table be updated accordingly?

@sollysion 2 жыл бұрын

So if ports on the switch are swapped, during the "forward" action, does it also perform a verification that it's the correct MAC? And if it's not, then it starts over from the "learn" action?

@PracticalNetworking 2 жыл бұрын

When a port is disconnected, it triggers clearing the MAC address(es) associated with that port. So when they are "swapped", the MAC addresses table (for those ports) are empty, and yes, everything starts over with the Learn / Flood actions.

@relaxingsounds5469 3 жыл бұрын

One question, wouldn't the flooding be done as part of the ARP process? I.e if A already knows Ds mac address, it must have learned it via an ARP broadcast, in which case the frame would have been flooded out of all ports except the one it was received on. So wouldn't the switch take that opportunity to build its mac address mapping for A and D so it doesn't have to redundantly flood the network at a later time? Is this example a scenario in which the switchs' port mapping table was lost/reset after an earlier ARP broadcast? I'm new to networking so I'm not sure of all the scenarios in which a switch will flood the LAN. Thank you!

@PracticalNetworking 3 жыл бұрын

Correct. I talk through that in the next video in the series =). For this one, I wanted to start from the position of Host A already knowing Host D's to keep the Switch illustration as simple as possible.

@relaxingsounds5469 3 жыл бұрын

@@PracticalNetworking thank you again, as some one new to networking your content is great

@PracticalNetworking 3 жыл бұрын

Glad you've liked it =). If it isn't too much trouble, you probably know others that could benefit from understanding networking. Shares are greatly appreciated =)

@sarbajeetmandal3063 Жыл бұрын

I am giving you 10 out of 10 .

@PracticalNetworking Жыл бұрын

Thank you =)

@Fortissimo99 Жыл бұрын

what happened if you interchange the port? does the mac address table always update itself for every traffic? if it does update, does it consume high traffic resource as the number of host increases?

@PracticalNetworking Жыл бұрын

When a port is disconnected, the switch clears the associated mac addresses. And yes, more hosts connected to the same switch/network creates more "noise" traffic. This is why networks can't grow to an infinite number of hosts (well, without instituting other constraints).

@ALUMINUM20 2 жыл бұрын

Unbelievable series!!! Amazing job. Where can I purchase the entire course?

@PracticalNetworking 2 жыл бұрын

More details here... still waiting to create entire course: www.practicalnetworking.net/index/networking-fundamentals-how-data-moves-through-the-internet/

@reynaldoruizflores 2 жыл бұрын

Doubt: But why simple connecting the cable the Nic delivers the Mac Address or turning the host on? Or in the flooding other ports teach their appropriate Mac address?

@PracticalNetworking 2 жыл бұрын

The MAC address is part of the NIC itself. The Switch is learning what MAC address(es) exist on the _other_ side of the cable.