Balancing act: Working within the limits of AWS network load balancers

The article discusses the use of Network Load Balancers (NLBs) by Ably for distributing incoming traffic across multiple targets, ensuring low latency and high throughput. It highlights two limits encountered while using AWS NLBs: maximum target group size and connection drops. To work around these limitations, strategies such as vertical EC2 scaling and sharding with multiple NLBs were employed. The article emphasizes the importance of load testing for exploring scalability limits and ensuring dependability in cloud solutions.