Something that has to do with the internet, I get this part. But what are those layers? Are they physical?
I also heard the term: layer 2 switch. What is that, is there a difference between this and a normal switch?
What can be achieved using the OSI model?
In: Engineering
On one end, you have some sort of wire or radio signal that is used to give you internet. On the other end, you have webpages, streaming music and videos and other things. In between is a whole lot of complexity of how those webpages, music and videos are requested, controlled and how they get to your computer. The OSI model divides that complexity up into different layers. For example, if you’re listening to Spotify, one of those layers is responsible for making sure that when you listen to “White Christmas” by Bing Crosby, that you hear “I’m dreaming of a” before you hear “white Christmas.” Another layer is responsible for making sure that the music gets to your home network and then, inside that network, another layer is responsible for making sure that the music gets to your computer. And, on top of it all, yet another layer lets you send commands like “stop” and “rewind” back to Spotify.
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