How Network Switches Work: Network+ and CCNA Concepts
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- Опубликовано: 10 июл 2024
- In this chapter about networking I will be discussing the operations that network switches perform. Most of these concepts are discussed in Network+ or CCNA materials. I also provide some lab examples that you can use to get familiar with the hardware involved.
If you need lab items to test with, here is the cheapest switch I could find, and if you need a cheap windows PC, I have linked one, but if you want to test with more than one little computer, you might use a Raspberry Pi as your test unit.
5 port switch: amzn.to/4aqqaDt
HP PC: amzn.to/3V2vEQb
Terms I use in this video:
NIC - Network interface Card
MAC - Media Access Code (Your network serial number)
MAC Address Table - Your switch's memory of what serial number is learned on which of it's switchports.
Broadcast - A message sent to all switch ports
Unicast - A message sent directly to a specific port
Link Light - A green indicator light to show communication has been established.
Encapsulation - The technique of wrapping data up into transportation formats so that it can be sent between devices.
Ethernet Frame - The specific format a switch uses to encapsulate your data.
LAN - A local area network, or the network that your switches represent. 
Хобби
Damn... Nobody ever explained me in such a manner... Respect ❤
After 35 years in networking, I found Derek to be the best teacher I've heard. Nice work Derek!
Amazing lesson. Thanks.
Waiting for full series with all practical sessions
Pls upload on daily basis if possible
Helps a lot
I got the next one almost done, work has been super busy and its the time of year for graduations to attend. Sorry for the delay, if I could pump one out per day I totally would!
Great video lesson. Can't wait for the next one.
Amazing explanations! Of course the real cliffhanger now is the question of redundancy - you'd want to have loops in your network, because relying on a single cable or a single switch is not very robust. Looking forward to the next video, and hope this will be addressed :)
Don't worry, I got you, its coming :)
This video has been so helpful and I’ve learned so much, thank you. I am in the process of installing a complex home network and this video has answered so many questions I have.
Really enjoying these, thank you for your efforts!
Wow man i just found gold mine.... Thank you
This was really good! I love the series! Especially the Lab! Please continue with those!
You are a good teacher!
This is gold thank you..
Amazing. I love it
Excellent... Thank you!
Just what I need ,, great
Great 👍 👌
First of all, i want to say that i love your videos! Im a computer science student about to go into my second year. I initially wanted to become a software engineer but after studying a couple of years, the thought of sitting at my desk all day for the rest of my life really puts me off, as ive always been a very "hands on, manual work" type of guy (worked in construction). I still want to learn coding, but Im now more so considering choosing the networking route, with hopes that I can have a job where sitting at the desk is only half of the work whereas the other half would be installing, and configuring hardware like switches routers firewalls etc. Can anyone give me an idea at what type of options there are for me? I was thinking of finishing my degree, getting certified and applying for NOC or data centre positions or system/network admin jobs? big thanks!
I'll have to let the audience reply to you for specific job positions. In our local data center there is a team of network techs that are split between IP and VLAN design and management and there is another group that installs the cabinets, the servers, cross connects, and other physical infrastructure. Personally, I am never at a desk, so careful what you wish for :)
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