You are creating a PSM Load Balanced Virtual Server Configuration.

In a PSM Load Balanced Virtual Server Configuration, the default service ports/protocols used are RDP/3389 and HTTPS/443. RDP (Remote Desktop Protocol) typically uses port 3389 for remote desktop services, which is essential for PSM functionalities involving remote sessions. HTTPS, which utilizes port 443, is used for the PSM Health Check service to ensure secure and encrypted communication during the monitoring and health verification processes of the PSM services.