An external load balancer sits at the edge, routing incoming requests across backend services to prevent overload and reduce latency. For a proof of concept, the goal is simple: validate routing logic, confirm horizontal scalability, and ensure session integrity before committing to full integration.
Start with a clean, reproducible test environment. Use containerized services to simulate your production endpoints. Define clear metrics—throughput, response time, and error rate. Configure DNS or reverse proxy rules to point traffic at the load balancer endpoint. Route HTTP and HTTPS requests through it to verify SSL termination.
Select a load balancer type. Layer 4 forwarding ensures speed with minimal inspection. Layer 7 routing lets you direct traffic based on URL paths or headers. In proof-of-concept mode, test both. Measure performance under synthetic load, increasing concurrency until saturation.