Enable Enhanced Networking on Amazon EC2 AMI

Discussion in 'Feature Requests' started by Thomas Johnson, Jul 2, 2019.

  1. Thomas Johnson

    Thomas Johnson New Member

    Jul 2, 2019
    Likes Received:
    Enhanced networking is required for the latest instance types (t3, m5, r5, etc). This allows for faster EBS burst (>250 MBps) and better network throughput at a slightly lower cost.

    As a workaround, it's possible to enable enhanced networking with the API and CLI tools if you already have an instance running:
    • Get your instance ID: (should look like i-123456789abcdef)
    • Stop your instance
    • Change your instance type: (m5.* t3.* etc)
    • Enable enhanced networking: aws ec2 modify-instance-attribute --instance-id i-123456789abcdef --ena-support
    • Start your instance again, and wait for it to come back online
    To roll back, you can disable ENA and change back to your previous instance: aws ec2 modify-instance-attribute --instance-id i-123456789abcdef --no-ena-support

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