Single flow and Multi flow in AWS placement group

Question

As per specification's of the placement group in AWS, EC2 instance can utilize 10Gbps in single flow and 20Gbps in multi flow.

What does this single flow and multi flow traffic signify?

Answer 1

According to AWS Documentation,

For instances that are enabled for enhanced networking, traffic between instances within the same Region that is addressed using IPv4 or IPv6 addresses can use up to 5 Gbps for single-flow traffic and up to 25 Gbps for multi-flow traffic. A flow represents a single, point-to-point network connection.

That means single flow is a single connection which can use network bandwidth upto 5 Gbps while multi-flow means parallel different connections which can take upto 25 Gbps of bandwidth in total.