How does bandwidth of internet work.

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I am a consumer of internet who uses the internet to watch videos etc. I pay for internet like a consumer.

Youtube on the other hand is the supplier of videos, and it accounts for 20-30% of internet’s traffic. What kind of internet connection/bandwidth do they have?

In: 1

They have many servers/data centres all over the world. The data centres have their own fiber cables giving them near unlimited bandwidth. So they spread the load many times over and therefore they can provide worldwide coverage without overloading the local internet

To add a little to u/Diggie9, who gave a good answer:

There is a subset of internet content providers that operate under contract from the large content generators/hosts. These companies run a multitude of small server farms that are geographically spread out. This allows consumers to access content much faster instead of needing to connect to primary hubs that may be hundreds or thousands of miles away. And each server farm requires less bandwidth overall as they supply content to a smaller pool of people than a large central location would.

For example, Hulu streams a bunch of shows. But rather than start up and maintain hundreds of server centers to service somewhere like the U.S., they hire a media distribution service such as Akaimai. Akaimai runs the infrastructure, Hulu provides the content. If you were to watch Hulu and then check the network traffic from your TV/computer, you’ll see a lot of traffic destined to akaimai domains instead of Hulu.