# AWS US-EAST-1 internal network congestion disrupts control-plane APIs for hours

Date: 2021

_No public text on this fact yet._

## Drivers

- Cloud-Infrastructure Concentration: https://factrail.ai/drivers/cloud-infrastructure-concentration

## Sources

_Sources are listed on the canonical page._

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/aws-us-east-1-control-plane-outage-december-2021