How Does The Basics of BGP: Border Gateway Protocol Explained Work?

Imagine BGP is like a group of friendly messengers who help different neighborhoods talk to each other so everyone can share toys and snacks.

You know how sometimes you have to go through your friend's house to get to the park? That’s kind of what BGP does, but for networks, which are like huge toy boxes that let computers talk to each other.

Each neighborhood has a router, which is like a smart kid who knows all the best paths to different places. When one neighborhood wants to send a message (or data) to another, it asks its router for directions.

The messengers (BGP) compare the routes and choose the best one, just like you might pick the shortest path to get to your friend’s house faster.

If something changes, like a road gets blocked or someone has more snacks, the messengers update everyone so they can still share toys and snacks without problems. It's like when your friend tells you there’s a new shortcut to the park!