Amazon Web Services (AWS) Elastic Load Balancer (ELB) is a fully-managed load balancing service that can distribute traffic across multiple compute resources to improve application availability, scalability, and performance. There are four types of ELB provided by AWS:
- Classic Load Balancer (CLB)
- Application Load Balancer (ALB)
- Network Load Balancer (NLB)
- Gateway Load Balancer (GLB)