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AWS Direct Connect now supports VIF Rate Limiters to help prevent network congestion

Published
June 1, 2026
https://aws.amazon.com/about-aws/whats-new/2026/06/aws-direct-connect-now-supports-vif-rate-limiters/

AWS Direct Connect VIF Rate Limiters

AWS Direct Connect now supports Virtual Interface (VIF) Rate Limiters on dedicated connections, helping to prevent network congestion caused by unexpected traffic spikes on a VIF. You can set a maximum bandwidth allocation for up to 10 VIFs on a dedicated connection, with capacity increments from 50 Mbps to 1.6 Tbps using a link aggregation group. Rate limiting applies to both ingressing and egressing traffic. If traffic exceeds the configured capacity, excess packets are dropped. New metrics for traffic utilization and dropped packets are available in Amazon CloudWatch.

What to do

  • Configure VIF Rate Limiters through the AWS Direct Connect console, API, or SDK.
  • Monitor new CloudWatch metrics to adjust bandwidth allocations as needed.

Source: AWS release notes




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