Feature ALB NLB GLB Load Balancer Type Layer 7 Layer 4 Layer 3 gateway and Layer 4 load balancing Target Type IP, instance, Lambda IP, instance, ALB IP, instance Protocol Listeners HTTP, HTTPS TCP, UDP, TLS IP Static IP and Elastic IP Address Yes Preserve Source IP Address Yes Yes Yes Fixed Response Yes User…
Feature Application Load Balancer Network Load Balancer Protocols HTTP, HTTPS TCP, UDP, TLS Connection draining (deregistration delay) ✔ IP addresses as targets ✔ ✔ Static IP and Elastic IP address ✔ Preserve Source IP address ✔ Routing based on Source IP address, path, host, HTTP headers, HTTP method, and query string ✔ Redirects ✔ Fixed…
Network Load Balancer supports TCP, UDP, and TLS protocols. HTTPS uses TCP and TLS as protocol. However, NLB operates at the connection layer, so it doesn’t understand what a HTTPS request is. That means all features discussed above that are required to understand the HTTP and HTTPS protocol, like routing rules based on that protocol, authentication,…