What is a Switch in Networking - How does a Network Switch Work?
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- čas přidán 31. 05. 2024
- In this video I am going to explain what is a switch in networking.
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Switches are the heart of all computer networks and are responsible for connecting up to 1000's of computers together.
If you want to know how does a network switch work then I hope this video explains that to you.
I will also explain the difference between a hub and a switch.
#networkswitch
A network switch looks a lot like a network hub. Unlike hubs, however, network switches are capable of inspecting incoming messages as they are received and directing them to a specific port-this creates an arp table on the switch so it knows where each device is and where to send the traffic destined for that device.
A switch determines the source and destination addresses of each packet and forwards data only to the specific devices, while hubs send the data to every port except the one that received the traffic.
A switch is a lot more efficient on bandwidth as data only is sent to where it needs to go.
Switches are often confused with Routers, but a Router is a completely different device which decides which network to send traffic to.
The confusion has come from most home broadband routers now including a small 4 port switch so box boxes are combined and most people refer to it as the router.
Thank you for explaining how switches work, just earlier I had no clue what they were but after watching this video, I have a grasp on what they do, thanks again
Thank you for the plain and simple description. Couldn't be easier when you get basic concepts explained in a clear and demystified manner. I really appreciate it.
I actually can’t believe I’m 3 years late. I absolutely love your terminology. Thank you kindly for you explanation and your time in making this video so people like me and learn. Much appreciated 🙏🏻. I certainly have to subscribe to your wonderful channel. Thank you once again.
Hi Mr, I know I’m a couple of years late but…thank you kindly for your direct and clear explanation. You’re a superstar without realising it. Thank you kindly for your time in making this video.
good video, well explained for beginniners studying IT/Networking.
Thank you so much. I was specifically trying to know how the switches know where data should go . Thank you for the amazing explanation
I really need this for my presentation and you make it’s so simple to understand. Thank you ❤
Hi Roger, just saw your video and I must say it was very simple but to the point explanation. Glad I saw your video. Just subscribed your channel and will go through other videos as well. Really appreciate your efforts and time. 👍
*Thank you; Merry Christmas.*
Thank you for a great explanation. Could not get my head around the difference between a switch and a hub. Simple and easy explanation.
Actually really helped. Thanks❄
Thank you for a clear video. Good man.
awesome explanation. im a newbie in networking, hope to learn more basics before moving on more advanced networking
My English is basic but i understand all do you told . Gracias Amigo , Good video
Thanks, such a great explanation!
Thank you for posting this! Great use of terminology and easy to understand. As an IT student, you are a lifesaver lol.
thank you for explaining!
Great explanation, thanks!
Thank you!I was not unsertdanding it.Now I get it.
thanks mate, i dont know why I struggled to make the difference between switch and router. have a nice one.
I did not under the difference between switch and a hub, Thank you for explaining how switches work,
Great video and very clear explanation.
thanks for the lesson Loki
Very simple and good one.
thanks very well explained :)
Thank you, Roger!!!
Very clear thank you!
So I have been using unmanaged switches since 2005 on my SOHO network. I've always idly wondered the kinds of options that "managed" switches offer. Your video helped me to understand the difference. As curious as I am, I think I'll continue to use unmanaged switches. LOL, sometimes it's better to have fewer choices.
nice explanation
Very good video well explained.
This helped a lot thank you
Thank you sir !
Sometimes it is good to revisit the core concepts. I recently did some reading about native vlans, tagging and spanning tree just to refresh.
Thanks Roger!
It’s nice to see another Roger. I don’t see many out there .
This was informative, thank you for clearing that up .
Excellent video.
well explained
Can i ask do you need to attach a switch to a wall Ethernet outlet ?.... Has my wall outlets dont work
Great simple video. I am trying to learn Networking but im struggling to find a good starting point that isn't too abstracted
Any ideas on how to start "from scratch" to get a deeper understanding?
want more videos on networking as a complete course if possible
and thank you
Very good, I am looking to know more about networking. right now its just so that my PC and my girlfriends Pc can send game installs from steam quicker because we are limited by our 50mbs plugs when both ports support gigabite and are both in the same room. this seems like the best option for me.
Thank you.
Also those who aren't aware you can transfer games form one PC to another on the same network, you do need to set it up in steam settings!
Awesome video, thanks Roger…Go Forrest🌳
Thanks
Superb 😍😍😍
What happens if PC D is swapped for PC C? How does the switch come to know that it should be sending the information to a different port? I am just learning all of this stuff now, and I assume that the switch is dependent on information being sent TCP - are all the computers informing the switch that the information is irrelevant or are they just discarding it?
Thank you
Haha randomly came across this video and saw my old comment lol, I've had a Switch for over a year and it's been great. I have 35mb download speed and its hardly ever lagged because it gives my main device priority
thank u
if it decides that which device is connected to which port, and send data for that device only thru that port, what happens if we interchange the ports connected to devices, how will it then work
you sound exactly like Roy from IT crowd :)
nice video
I have a question: I just want to plug one computer with another through my unmanaged switch, however, they can't see each other. Is that because I didn't plug the switch with the router? Do the switch and the router need to be plugged together in order to one computer see the other? Plugging both computers into the switch isn't enough for them to see each other?
It depends what the computers are configured as? If the network cards are set to DHCP and need to get an address from somewhere you also need your router in there as well, if you just want them to see each other and that's it then assign PC1 and IP address of 10.0.0.1/24 and PC2 10.0.0.2/24 - just depends what you want to do and what you mean by see each other?
This is exactly what I'm looking for. Thanks for both of you! Cheers!
@@RogerPerkin thank you, I was able to get there figured out last year. The Ethernet cable was wired wrongly. 🤣
Great video! Is it me or is the volume is a little low?
thanx sir 🙏 i saw my google switch work profile which i never turn on i think some body very interested on me
Ip switch and network switch is the same?
what if you plug internet cabble coming from the router does that distribute wifi connection to all of the device that is connected to the switch?
If you connect a cable from your router into a switch and all the ports are in the same vlan and all the devices on your network are on the same subnet as your internet router that will provide internet to all devices, they will typically get a DHCP address from the router
Do you know what the difference is between a T3 and T5 switch ?
Why does port #5 look different in there? @0:12 🤔
Online class brought me here...
From 🇵🇭
😁😁😁
What happens if the connections get swapped at the switch?
Switch have only Mac address ?
Eh I need to buy a couple of switches for testing.
2:20 isn't the title should be "HUB send it to all ports" ?
Im a idiot, but to my office i have 1 ethernet cable, can i plug that in to a switch and get 2 cabels?
You can plug that into a switch and get 24 cables if you want!
@@RogerPerkin Dam! That was fast reply, thanks man!
Why do you need this instead of a router?
Good question, a switch can also be a router - this is called a Layer 3 switch, it allows you to route traffic between different networks. A router typically has only a few ports where a switch can have a lot more normally 48 or you can stack switches to have up to 400+ ports. So you use a switch when you need more ports and a router when you need to route between networks, like your home broadband router, but the switch if it supports it could also be a router
@@RogerPerkin Thanks!
What are the problems in Switch?
being forced to watch this in class rn
hi ms g's class 4
highpass filter
Nitendo
Sir I want The Ppt i am college student ❤🎉😊😮
Sorry I don't have it anymore, but feel free to copy it
He really did a powerpoint presentation for a video?
Disturbing low end level on voice. Good info wrapped like a crap tv commercial. Silly!!!
What happens if PC D is swapped for PC C? How does the switch come to know that it should be sending the information to a different port? I am just learning all of this stuff now, and I assume that the switch is dependent on information being sent TCP - are all the computers informing the switch that the information is irrelevant or are they just discarding it?
All devices have a different ip address. Most of the devices will have a static ip set anyway so even if the port changes, the ip stays the same. If let's say the ip changes, you'll need to reconfigure whatever you were doing/sending so that it stars working again.