Multiplexer 

Definition

The multiplexer is the central instance for data communication between listeners and interpreters/components.

Use

It receives data packets from listeners and sends them to portwatchers, which send them on to interpreters.

The multiplexer can also be used to turn components on and off using the portwatcher. This may make sense so that active load balancing can be performed.

Integration

Since it knows which components are available it can make the assignment depending on the number and load (load balancing).

The "result" of the request can either be sent to the recipient via the portwatchers and the multiplexer or alternatively this path can be used to specify a destination (URL) where the result can be found.