Domain and application services ports can either be static ports or dynamic ports.

Static ports are ports that are assigned dedicated port numbers that do not change. The Informatica domain and domain components are assigned to static ports. Certain Informatica services are also assigned to static ports; these services will always start on the static ports.

Dynamic ports are ports that are not assigned port numbers. Instead, the Informatica Service Manager dynamically allocates port numbers to each of the application services processes as they start up.