How AWS improves global connectivity via automated traffic engineering

This article explains how AWS uses automated Inbound Traffic Engineering (TE) to optimize global network connectivity and manage the 150+ Exabytes of data received daily.

• Inbound TE automatically balances traffic across peering sessions without user intervention
• Achieved 90% improvement in time-to-mitigation for network interconnects
• Prevents over 1,000 congestion events monthly across AWS global network
• Uses SDN controllers to analyze telemetry and steer traffic from overloaded links
• Employs AS PATH prepending and prefix withdrawal as traffic steering actions
• Operates with closed feedback loop to detect and rollback negative impacts
• Addresses organic growth, DDoS attacks, and suboptimal routing from peer networks

AWS automates Inbound TE to eliminate complex network orchestration for users, ensuring reliable application performance at massive scale without costly infrastructure upgrades.