Posted On: Nov 7, 2023

Now Amazon Elastic Cloud Compute (EC2) instances supports multi-Virtual Private Cloud (VPC) elastic network interface (ENI) attachments. With this capability, customers can now launch an instance with a primary ENI in one VPC and attach a secondary ENI from another VPC. With multi-VPC ENI attachments, customers do not have to sacrifice VPC level segregation between networks, while allowing select network virtual functions to communicate between them.

Telecommunication customers sending 5G network traffic within Amazon Web Services regions as well as from on-premises to Amazon Web Services Cloud and back need logical separation of network virtual functions including routing and forwarding for different applications. Using different VPCs for different types of network traffic such as control packets, voice and the Internet, customers can now create VPC routing segmentation between their different workloads. With multi-VPC ENI attachments, customers such as network operators can connect specific network functions between these otherwise segmented VPCs to ensure specific functions can communicate with each other, staying in sync and passing critical information back and forth while being subject to specific VPC routing.

Multi-VPC ENI attachments are now available in the Amazon Web Services China (Beijing) Region, operated by Sinnet and Amazon Web Services China (Ningxia) Region, operated by NWCD. For more information, please visit the EC2 user guide.