Refer to the exhibits.

In this case three configurationswill be required each for port 8000, 6000 and 7000.

There would be three global elements defined for HTTP connections.

Each HTTP connection will have host and port. One example shown below with host as localhost and port 6000

Graphical user interface, application Description automatically generated

To use an HTTP listener, you need to declare a configuration with a corresponding connection. This declaration establishes the HTTP server that will listen to requests.

Additionally, you can configure a base path that applies to all listeners using the configuration.

https://docs.mulesoft.com/http-connector/1.6/http-listener-ref#http-listener-configuration