As you may already know the e2e stands for the end-to-end tests. And the ng e2e is building a serving a project and then it triggers Protractor to run e2e tests.
To use it you need to specify the project, like this
ng e2e my-project
Then you will be given with the following CLI log
As you can see after calling the selenium the server opens on the
At the same time, the test responds with SUCCESS.