Here's why:
- *Path Vector Protocol: BGP doesn't just find a path; it finds the best* path. It considers factors like AS (Autonomous System) hops and policies. In 2023, there were over 100,000 ASNs (Autonomous System Numbers) globally, and BGP keeps them all connected.
- *Scalability:* BGP handles over 900,000 routes as of 2023. That's like delivering mail to every house on Earth—twice.
- *Resilience:* When a route fails, BGP reroutes traffic faster than you can say "404." During the 2021 Facebook outage, BGP played a key role in isolating the issue, preventing a total internet meltdown.
So, next time you stream a video or send an email, remember: BGP is the magic behind the scenes, ensuring your data finds its way home.