Issue #398: Amazon EC2 AMIs lack 'SriovNetSupport' attribute - cloud-sig

cloud-sig

#398 Amazon EC2 AMIs lack 'SriovNetSupport' attribute

Opened Jan 16, 2023 by dwmw2. Modified Apr 17, 2025

It looks like you set the 'EnaSupport' attribute, and if I boot an m4.16xlarge instance I get an ENA network device. But on the smaller instances like m4.4xlarge it's falling back to PV netback instead of using the Intel SR-IOV.

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/sriov-networking.html

Metadata Update from @davdunc:
- Issue assigned to davdunc

Jan 18, 2023

Metadata Update from @davdunc:
- Issue tagged with: AWS

Jan 18, 2023

jcline commented Apr 17, 2025

@davdunc SrviovNetSupport='simple' is what's being set by the new image uploader, so I think this should be fixed as of whenever we turned that on for AWS images (last July?)