Understanding Switches

[@danijuhasz27]

Man, you're saving my exam 10 years after uploading the video!😄

[@katrinapavlova8044]

Eli, I know this is an ancient video and you moved on to teaching different stuff loooong ago, but just want to express appreciation of your detailed approach. Your videos really stay in my mind, probably because you repeat what you said in few different ways and go into so much detail. Thanks a lot! Great help for someone with no technical background.

[@dagda825]

Eli, I'm working on my network+ cert; you've taught me more about switches than TWO semesters at my local college. That speaks volumes for your teaching abilities.

[@MunkiiFtw]

i hope this guy makes youtube money, he deserves it

[@bobsanders2145]

facts

[@TheAERoss]

I hope even more he is making money from Cisco...

[@charlesludwig8672]

He is

[@stonkodactyl9210]

Man I almost forgot how pure gold you are.

[@shaunsketers4181]

Well done. You make IT sound so easy. I got a promotion from help desk to network analysis and you really help me learn the basics. Thank you

[@annode]

Congrats on your promotion. :) I know what he is saying is the basics because he says "basically" every 30 secs.

[@Configurationdepot]

Congrats, Shaun on your promotion! Learning never stops in this field. Best of luck!

[@gazizbekmursali6145]

Congrats! 3 years past, now I believe your are senior network engineer.

[@chrismorse3862]

Where were you working when promoted? Still there?

[@wooohwow]

yay so happy for you! i got burned for trying to start help desk career

[@UrielSepsis]

I'm in the process of retraining to become an IT systems technician. Somehow I understand your explanations way easier than my actual teachers explanation in class - I guess bilingual learning is not my thing (german XOR english). Your lessons are detailed and well structured while keeping it relaxed. You do iterations almost always where I need them so I don't have to skip back and forth =) Thank you very very much, sir!

[@Conquered.lifeFl]

Incredible! I came here getting an understanding of switches and routers as a newbie obtaining detailed info for my Comptia A+ and now I am hooked on your lectures. I am blown away with the knowledge. Thank you very much!

[@Firas95k]

Eli, I don't have enough words to thank you. The amount of information that you had shared in this video is enormous. GOD BLESS YOU!!!!!

[@joeellison7898]

Great to listen to Eli and benefit from his wisdom. He's very kind to be going through all the trouble to produce these lessons. He must have a teacher's heart.

[@bitsofskin2088]

Eli, i love your videos man. You dont talk "DOWN" to people and you get the point across. You have great teaching ability. Thank you for your videos.

[@loolehbaz]

great video. My 7 year old sat through 46 min of the video right next to me, 30 min past his bedtime. He said he is really a good teacher!!

[@mrnobody1321]

8:10 Switches. osi level II Learns where each device is connected. (discovers the mac address) 15:30 Managed vs Unmanaged Switch Managed: allows extensive config. See below. 18:00 Speed 10, 100, 1000 Mb connections (should match the device speed) (managed) Set the hard code speed. If not, will do it automatically. 20:00 Duplex Half-duplex: listen or talks. (one signal at a time). Duplex: listen and talks (example: cellphone). 24:00 Backplain Before reaching another port, data goes through the backplain. It's like a highway. It needs to allow very high speed. 26:00 Trunk (for managed ports) Connect multiple switches. Uses fiber cable. 28:40 VLAN 31:00 PoE

[@jamespoda5621]

eli said "when you have 50 people in an office doing stupid staff""the network may fail!' that comment made my day

[@michaeldavis3754]

You are a Teacher's teacher! Your lectures are easily understood and right on point!

[@jdiez7092]

I would like to give Eli a standing ovation, I am new to the IT field and I learned more in the first 15 minutes of this video then anywhere else.

[@abdimohamed1554]

man you should be teaching my class. you would be my favorite teacher of all the time. great work eli you are the man!

[@Mastran77]

Got a big Job where i have to deploy a huge 20 IP cameras Surveillance System wich involves using Managed Switches, an i have never even touched a Switch before, this video came in very helpful...thank you, i like the warm way you explain, very sintetic

[@Vexterian]

Can’t believe I actually watched the entire video. It is excellent learning for a newbie !

[@Shattered_Sanity]

I just found a solution to one of my problems with my network! I needed to separate the Access Point at my dad's restaurant so that the customers won't be able to see all the other devices in the network. Yeah, I have the same connection for the restaurant and our house so that our customers can have wifi for their devices. Thank you so much dude, keep this awesome work up! ~Valk.

[@radusarbu6994]

simple is always the best way to learn ,without complication .I say GOOD JOB ELI

[@praveenm6204]

best part is you look into the history of where it started.. great.. nice

[@faisalalbarrak]

THIS GUY FORCES ME TO SIGN IN AND WRIGHT A BIG THANKS TO HIM. MAN YOU ARE SUCH A MANAGED SWITCH. I LOVE YOU ELI YOU ARE THE BEST.

[@Mom-pd5te]

I know this is an older video but I have learned more from this guy in the 58 minutes watching this than I did from anything I have ever read on my own. fantastic lessons and looking forward to watching all the others. Thank you from someone who was pushed into handling my office network without having the background to do it!

[@jaywenden1939]

How do I force my mom to be half duplex?

[@domenicospano809]

+Jason Wenden go to change adapter settins -> double click your network card (wireless or ethernet) -> configure -> advanced -> Speed & Duplex -> click on Auto Negotiation and select your option

[@trunolimit23]

+Jason Wenden Vodka

[@MichaelKnickers]

cyka

[@fatoumatagaye6949]

Daniel À spinal

[@g_pazzini]

Give her a walkie talkie..

[@jkjqu6805]

Ahh!! This is so awesome, I love it. I can understand everything at the maximum speed and got to learn this in 20ish minutes. Great content!! Thank you!

[@michaelparry1383]

Eli, like always, you have done and are doing a great job. You have heard this over and over. I like reading the comments when I am listing to your presentation. There is one very common thread; you are a great presenter and know how to teach your subject. Thank you again for spending so much of your time to teach us who are not so IT intelligent. I continue to view . . .

[@RoSi4You]

Just want to go back to school and have a teacher like you. I think, i will clap my hands each time the class will end. Well done.

[@jimraynor1849]

Fantastic! I was trying to learn about switches using CISCO's documents and getting no where. Your explanations are both easy to understand yet have incredible depth. Also your enthusiasm for the subject really shines through and makes the video way more interesting than the subject material would otherwise be. You have my deepest gratitude for your commitment to helping others learn and I wish you the very best in all that life has to offer.

[@f2ni11]

I wanted to say the exact same thing. Was looking everywhere for tutorials this simple yet efficient.

[@momofighter3211]

I work as an IT Field Technician in 2018 and thought this video was pretty recent.

[@RobbieVee]

Just wanted to let you know, I currently am getting my network+ cert but the problem with these companies cert processes is they expect you to know a lot of terms previously when they start to teach you. Your videos are really helping me understand and connect the dots..LIFE SAVOR!

[@jimspencer6741]

Great Class for the 70 year old. I have so much to learn. Thank you Eli.

[@NNiro02]

"Hubs were completely dumb" this guy is awesome!!

[@chestypants78]

"Hubs are bad, m'kay."

[@Macadoof]

You are incredible Eli. I'm currently interning at a company as an IT tech and even though I've heard about all these things and used some of them in practice; having you explain in baby steps what they do have been incredibly useful to me. You're creating jobs and helping us youngsters out. Thank you again, subbed!

[@barneyfrank7]

I feel your enthusiasm for networking. Your good vibes are contagious. Thank you for posting! You sir are full of win.

[@enochannan9536]

this guy is really great I like his tutorials

[@keerene]

I am impressed by the amount of information you have provided. This was very informative. Thank you.

[@sister2sisterbeauty997]

thank you Eli, I'm getting a revision I would have never got from anyone else, I studied Networking in 2009 and now it's 2016 I haven't got a job in Networking so listening to your lectures keeps me going.

[@anthonyh5473]

Eli, You're an incredible guy and I thank you, you have educated me faster and more effortlessly than anyone in any technical classroom could ever have! You lay it out once... and it's all crystal clear to me! YOU THE MAN!

[@brianschermerhorn7294]

Love how you reiterate at the end. Helps reinforce the concepts =)

[@anasonics]

can you assign a switchport to more than one vlan?

[@JonMajorCCIE47884]

Yes, depending on the vendor, we'd call that a trunk port (Cisco) or a tagged port (various other vendors).

[@Douglas_Gillette]

Traffic is considerd in a VLAN typically based on ports. Port A can be configured to be in VLAN 10. All traffic entering the port is considered to be in the logical broadcast domain of VLAN 10. Here is a diffrent method. Layer 2 switches/bridges can also consider traffic in a VLAN based on its physical MAC address. If traffic from MAC address 01-01-01-01-01-01 enters on Port A it will be considered in VLAN 10. Now move the end station with that MAC address to Port B on the same switch. The switch will still consider the traffic in VLAN 10.

[@iradukundacynthiaamal]

Eli Is so good at Computers...You really are a Computer Guy and I am sure you know how to get people instructed about all this stuffs...You make it as easier as possible...Keep it up...You are a star!!!

[@victoriadathan2675]

Thank you sir for breaking down switches. I am taking a networking class, and l am currently learning about switches. Reading the textbook, I didn't understand, but with this video I do. You should be a teacher.

[@KOINONIACHURCH40]

learning networking 12years later

[@SiyaPhewa]

You and I are in the same boat, Buddy.

[@sportemart6395]

Very very very helpful information. Thank you so much.

[@SamoZain]

Man you are the best Computer guy on the world you are really know how to introduce IT stuff and how to make it simple to understand . Thank you so much

[@tenzingsherpa5523]

Eli you are the best teacher ever i have encounter in my life .Hoping to get more PHP tutorials and m very excited to get more tutorials

[@Fail4FunTV]

0:04 - 0:05 That first sould scared the crap out of me!

[@twangthefurious]

Most switches operate at layer 2 so they won't be packets that are sent there will be frames. I know there are some layer 3 switches as well but...........

[@jamesgonzalez5545]

Great catch! Eli needs to use the proper terms. He also said that hubs cause broadcast storms. While the congestion may be great and the holdoff times may interfere, that's not a broadcast storm. They are caused by loops in the network. Spanning Tree Protocol is used to stop them. computer.howstuffworks.com/lan-switch13.htm

[@jamesgonzalez5545]

Also Eeeethernet uses Carrier Sense Multiple Access with Collision Detection (CSMA/CD) en.wikipedia.org/wiki/Carrier-sense_multiple_access_with_collision_detection not CA/CD WHICH DOESN'T EXIST. CSMA/CA is a different protocol often used in wireless networking. en.wikipedia.org/wiki/Carrier-sense_multiple_access_with_collision_avoidance. I can't listen any more to this guy if he is 'teaching' this incorrectly. I spent 25 years in networking and there is nothing wrong with cisco, but there is a lot of other high quality networking gear out there that I've worked with that costs a lot less and is just as good.

[@georgenwuya3417]

You do realize that eli is explaining to people who have no understanding of IT in technical depths. Save your b.s explanation foe your boss and stop being pedantic

[@RomeoTurbo]

This is one of the best educational video I have ever seen ... Just after 1 hour of watching this video, my knowledge is at a whole different level now ... yes, I do understand switches a lot better now ... thanks a lot for making this video.

[@roderick617]

Thank you SO much for your videos. I was referred by a friend who is a network engineer to watch your videos because I'm starting in the same field. You absolutely did not disappoint!

[@msketcham]

Dude.... there is a vowel following the lead E.. its EE-ther-net (e as in tea) not eth-ur-net (not eth like in ethel)

[@garchafpv]

45:09 that escalated quickly lol!

[@lakesidepmp3]

you are the only guy that explains everything. The good and bad. everyone else just says plug the hub in. I wanted to know if a hub has changes the ip. so I wouldn't affect my home network. And that's why I'm taking your classes. Thanks Eli!

[@elithecomputerguy]

@jgrabener hmmm... it really depends. Generally all modern networking equipment is full duplex. Standard Surveillance cameras using coax cable may or may not be. The PTZ system actually uses a different cable and controller then the video feed for movement. There are PTZ protocols, such as Pelco D, that specify how PTZ cameras operate.

[@JoshuaCeres81]

I need a Power over Wife if you can manage that kthx

[@HungryGuyStories]

+Joshua Ceres - ROFL! :-D

[@mh5539]

+Joshua Ceres Nah, you will get package collisions and create a broadcast storm and you will be reset.

[@aaronwerner830]

@Joshua Ceres you mean power over Wi-Fi? they only make POE Power over Ethernet not over Wi-Fi

[@leeplatt9360]

Use Cisco not Linksys, I thought Cisco now owned Linksys?

[@elithecomputerguy]

+Lee Platt They did own Linksys for a few years... they sold Linksys I believe to Belkin a year or two ago...

[@Chevelle396BB]

+Lee Platt Even when Cisco owned Linksys, Cisco was still the better piece of hardware. Personally, I've never considered Linksys "Enterprise" or even "Business" quality.

[@proplayer682]

+Lee Platt NSA own Cisco buy sisco product you also may get them rigged by NSA

[@Schnoogle]

+PRO PLAYER Can't tell if you're trolling or if you honestly believe that.

[@Reichiruu]

There was somthing about it, in the snowden papers.

[@tammykraemer5314]

I'm learning network and security course. This video helps me a lot in understanding switchers and HUB. Brilliant tutor

[@pebertje]

Only people that really understands what they talk about can explain things like Eli... thanks man.

[@disregardingsanity2890]

But but but...if I throw away my hubs, my wheels won't attach to my car! 😫

[@yashwanth_ravula1]

haha

[@cheezwhizvids]

Hm. Never heard Ethernet pronounced with the first syllable sounding like "Beth" instead of "teeth" before.

[@ColonelKurtz]

I wonder how he pronounces the word "ether".

[@ColonelKurtz]

Or ASUS. 13:07

[@ColonelKurtz]

"company officials told us a few years go that it should be pronounced ah-SOOS". Hmmm. Guess I've been pronouncing it wrong all along.

[@ColonelKurtz]

nevermind. It's supposed to be pronounced AY-soos. I know what, I'll not buy an ASUS so I don't have to worry about pronouncing it incorrectly.

[@DigGil3]

When Eli says it, I hear like a soft "suze". It's rather confusing. I pronounce it as "ass-oos".

[@alexmuhania7312]

Eli you are an amazing instructor. watching your videos make my life easy studying computer network at College .keep the hard work up . In hadeth we have this " Stand up for the teacher and glorify him....He could have been a messenger. "

[@JaiGouraNitai]

Eli, I just want to say that you are One of the Best Teachers on KZbin..!!!

[@ShireenRobb]

The simple explications and definitions in which this guy goes into has been extremely helpful, and has helped very much within my BLANS report for college. Thanks very much !!!

[@MeliaEsperas]

Your such a great teacher, I can have your videos playing in the background and minimized and I still get pretty much everything you're saying just from the audio.

[@Michael_Livingstone]

I ran out of ports on my fiber optic terminal/router so I watched this video to understand switches. Thanks to what I learned in this video I went and bought the correct switch and my setup is running beautifully!

[@doeda]

thank you for this, wow your lectures+my instructors+cisco lectures=I can now understand things!

[@nicheen4036]

Thank you so much

[@MrHearnz]

Man i wish my school had teachers like you! I bet you've heard this a million times, but seriously...You make it so easy to understand, not like my dusty old teachers. I tend to search your videos for subjects we've had in class and suddenly, everything is much clearer! thank you very much for these videos!! keep it up :)

[@freespirit4463]

GREAT WORK u have helped a lot of people with these lessons & I'm one of them . I hope u continue uploading amazing videoes like this . LOV U

[@machelp8703]

Thanks. I've gone from watching them as a necessity to just watching them for fun! REASON: They're so simple to learn from and even just running the sound and glimpsing at the screen helps you learn a lot!

[@zfarooq915]

God bless this guy... I have learned so much without having any networking background

[@cerebralnomad9298]

I came into this video thinking there was nothing more to learn about switches. I was incredibly wrong. Thank you for your video!

[@82hky82]

And that's the best response to a comment I've read in a long time. It reads like a Hemingway excerpt.

[@BasquiatSama]

Great video, like most people I thought switches only connected network devices together so they can communicate with each other, didn't know they had so much functionality.

[@ancelrowe9683]

I learn so much from you I don’t need to attend a networking class thank you sir

[@subscriptivechannels5672]

YOU ARE FAR MORE BETTER THAN ANY COMPUTER TECH I AM WATCHING YOUR ALL LECTURES FROM THE VERY BEGINNING Thanks for your Contribution -K#####

[@shmehfleh3115]

Broadcast storms also happen in switched networks, and are usually what you get when you plug two ports on the same switch together: Since switches always retransmit broadcast packets to every port, when you plug two together, it gets stuck in a loop. The switch sends a broadcast packet out one port, immediately received that packet from the other port, then rebroadcasts it again ad infinitum.

[@peterotinget9894]

Eli i liked the way you lectured me on switches i learnt switches but i didn't understand like the way i have understood here thank really for your great work God bless.

[@atAnkitMurarka]

very informative video, I am following your networking videos from the very 1st one, this is the 6th one in the list and now I can say you have induced in me, a curiosity to learn more about networking....great work eli!!

[@johnjgcork]

Thanks Eli, you give great verbal presentations, I really enjoy your easy listening voice and knowledge. However as a science teacher, your use of the whiteboard, where we see only about one third of it, makes me wonder what do you wish to hide on the other two thirds. Aim for better diagrams. Overall result 9/10. Could work harder. (HaHa)

[@MikeE_wf]

9 years old and this is still good

[@murphster06]

Great video. I do enjoy how giddy he gets every-time he grabs the big switch. haha

[@gauravzerogravity]

This was is probably the best switch tutorial in the entire Human History

[@datamike00]

pretty good, watched this 10 years after the upload and it fleshed out a lot of stuff

[@sheiladavis5559]

This was the best explanation of POE I have heard. THank you

[@mugambaadam4620]

cant stop watching more of your videos. Really helpful. Many thanks man

[@PCREPAIRZ1]

I am starting my class early next year and this is helping me so much,even if i say thanks and you class is great it is not enough to describe how i really feel....but i wll still say thanks

[@mkj1217]

I just have basic computing skills and am just curious to how the internet works. Thank you for your videos, you explain things for the everyday man so perfectly.

[@wiseySizwe]

Thanks Eli for all your help

[@fitwithartin]

Notes of key words: Hubs: Ethernet protocols >> use collision detection Random waiting time will be set after a collision happens. >> possibility of broadcast storm(network hitting a standstill)

[@aboood8111]

We need alot of people like you on this planet

[@FlyingBassMan]

Eli, You are one of the best teachers on You Tube. Thanks for all your great videos.

[@abdulrahmanalmowafy5350]

All these sophisticated systems in order to ensure user's comfort! Man, if I was the one who made these things I would just show users a message, at each communication attempt, that says "Make sure the other A-holes in the network are not uploading or downloading anything" and spare myself the trouble!

[@krunalpatel327]

trying to study for a BIS security test, helped me out a lot. Thanks you

[@SafeAndEffectiveTheySaid]

Thank you very much Eli the Computer guy for helping me with this tutorial.

[@gopinathsundaramoorthy8118]

Simply superb tutor in the world of teaching...great master....

[@Dentantje]

Very great video. Got your videos from my boss, he told me to learn some networking and shizzle and your videos are great. Keep 'em coming.

[@lnternetperson]

Thanks for another great video. I was offered a sys admin position despite not having any experience with switches. After watching this it no longer seems like a foreign language to me.

[@negmone]

Eli I feel smarter just by listening to you, again great job !