Load Balancer

A deep dive into Load Balancer - Practical ver.

Application Load Balancer (ALB, Layer 7)

• HTTP, HTTPS, Web Socket routing

• Security group mapping available

• HTTP 2.0 is also supported

  • Previously, it wasn't supported

    • So gRPC, Web RPC weren't possible..!

Network Load Balancer (NLB, Layer 4)

• Supports everything

  • TCP, TLS, UDP routing

• Disadvantage

  • Security Group mapping is not supported!

Classic Load Balancer (CLB, Layer 4)

• Similar to NLB (Layer 4)

  • However, TargetGroup specification is not supported

• Security group mapping available