Classic Load Balancer provides basic load balancing across multiple Amazon EC2 instances and operates at both the request level and connection level. Classic Load Balancer is intended for applications that are built within the EC2-Classic network.
What is difference between application load balancer & Classic load balancer?
Application Load Balancer enables content-based routing and allows requests to be routed to different applications behind a single load balance. While the Classic Load Balancer doesn’t do that, a single ELB can host single application.
What is classic network and application load balancer?
Application Load Balancers are used to route HTTP/HTTPS (or Layer 7) traffic. Network Load Balancers and Classic Load Balancers are used to route TCP (or Layer 4) traffic.