> For the complete documentation index, see [llms.txt](https://docs.greennode.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greennode.ai/load-balancer/application-load-balancer/how-it-works-alb.md).

# How it works (ALB)

ALB acts as a traffic director, intelligently distributing incoming requests across multiple backend servers to ensure optimal performance, availability, and security for your applications. Here's how it works:

<figure><img src="https://1985221522-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F7rE7M1L7GYcwQzNGd0aB%2Fuploads%2Fgit-blob-458eb1cb6e88dbd80d56b98ef3efcdec430904ad%2F64553853.png?alt=media" alt=""><figcaption></figcaption></figure>