ENA Express supports 120 new instances
120 EC2 instances now support ENA Express, including network optimized, storage, high-memory, and accelerated computing. With this launch, ENA Express is adding support for 35 network optimized instances, 6 storage instances, 7 high-memory instances, and 5 accelerated computing instances. Additionally, ENA Express has added support for 67 different compute, general purpose, and memory optimized EC2 instances.
ENA Express is a networking feature that uses the AWS Scalable Reliable Datagram (SRD) protocol to improve network performance in two key ways: higher single flow bandwidth and lower tail latency for network traffic between EC2 instances. SRD is a proprietary protocol that delivers these improvements through advanced congestion control, multi-pathing, and packet reordering directly from the Nitro card. ENA Express works transparently to your applications with TCP and UDP protocols.
ENA Express with network optimized instances is great for file systems and media encoding workloads that need higher single flow bandwidth and consistent tail latency. ENA Express coupled with storage instances improves performance for large object transactions to and from databases. ENA Express on high-memory instances is great for single flow performance for in memory databases transactions like with SAP HANA. Finally, for accelerated computing instances ENA Express provides better single flow performance for file system access to services like FSx Lustre.
ENA Express is available in all AWS Commercial Regions and AWS GovCloud (US) Regions and comes at no additional cost. For a complete list of supported instances, please review the latest EC2 Documentation.