Application Load Balancer vs Network Load Balancer

Developers should use Application Load Balancer when building scalable web applications, APIs, or microservices on AWS that require intelligent traffic routing, SSL/TLS termination, or integration with serverless components meets developers should use a network load balancer when building applications that require extreme performance, such as gaming servers, iot applications, or real-time streaming services, due to its ability to handle volatile traffic patterns with minimal latency. Here's our take.

Application Load Balancer

Nice Pick

Developers should use Application Load Balancer when building scalable web applications, APIs, or microservices on AWS that require intelligent traffic routing, SSL/TLS termination, or integration with serverless components

Pros

• It is particularly useful for applications with dynamic scaling needs, such as those using containers (ECS/EKS) or serverless functions (Lambda), where ALB can route requests based on content like URL paths or host headers
• Related to: aws-ec2, aws-lambda

Cons

• Specific tradeoffs depend on your use case

Network Load Balancer

Developers should use a Network Load Balancer when building applications that require extreme performance, such as gaming servers, IoT applications, or real-time streaming services, due to its ability to handle volatile traffic patterns with minimal latency

Pros

• It is also ideal for scenarios where preserving the source IP address of clients is crucial, like for security logging or geolocation, and for protocols that don't require content-based routing, such as TCP-based databases or custom protocols
• Related to: application-load-balancer, elastic-load-balancing

Cons

• Specific tradeoffs depend on your use case

The Verdict

Use Application Load Balancer if: You want it is particularly useful for applications with dynamic scaling needs, such as those using containers (ecs/eks) or serverless functions (lambda), where alb can route requests based on content like url paths or host headers and can live with specific tradeoffs depend on your use case.

Use Network Load Balancer if: You prioritize it is also ideal for scenarios where preserving the source ip address of clients is crucial, like for security logging or geolocation, and for protocols that don't require content-based routing, such as tcp-based databases or custom protocols over what Application Load Balancer offers.

The Bottom Line

Application Load Balancer wins

Developers should use Application Load Balancer when building scalable web applications, APIs, or microservices on AWS that require intelligent traffic routing, SSL/TLS termination, or integration with serverless components