Differentiated service (design pattern)

Hey kiddo, do you know how in a restaurant, different people can order different food and drinks? And the server gives each person what they ordered without mixing them up? That's kind of how differentiated service works in computer networks!

In a computer network, lots of different things are trying to use the same resources, like the internet connection or the Wi-Fi. And just like in a restaurant, they all have different needs and preferences. Some might need more speed, some might need more reliability, and some might need more security.

Differentiated service is like a design pattern that helps the network give each thing what it needs without getting mixed up. It does this by tagging each thing with a special "label" that tells the network what kind of service it needs.

Think of it like a big box of crayons. Each crayon is a different color, right? And you can use each crayon to draw something different. Blue for the sky, green for the grass, and so on. Differentiated service is like giving each thing in the network its own special crayon color, so the network knows what kind of service to give it.

This helps make sure that each thing in the network gets the right kind of service, even if they're all trying to use the same resources at the same time. It's kind of like the server in the restaurant making sure each person gets the food and drink they ordered, without getting mixed up.

So, in summary, differentiated service is a way for computer networks to give each thing what it needs by tagging it with a special label that helps the network know what kind of service to give it. Just like a restaurant server making sure each person gets the food and drink they ordered. Easy peasy, right?