How can I improve networking performance on my Amazon EC2 Windows instance?

1 minute read

I’m running an Amazon Elastic Compute Cloud (Amazon EC2) Windows instance, and I want to take advantage of improved networking enhancements.

Short description

You can activate enhanced networking to achieve higher bandwidth, higher packet-per-second performance, and consistently lower latency. All current generation instance types except T2 instances support enhanced networking. Supported instance types use either the Elastic Network Adapter (ENA) or the Intel 82599 Virtual Function (VF) interface.


For supported instance types, first determine the enhanced networking mechanism that's available for your instance type. Then, use the ENA or the Intel 82599 VF interface to activate enhanced networking.

For T2 instances, and as a best practice for all instance types, be sure to upgrade AWS PV drivers on Windows Server.

Note: If the instance is a domain controller, then upgrade AWS PV drivers on the domain controller.

Related information

Summary of networking and storage features

AWS OFFICIALUpdated a year ago