Why IP is required for creation of an object of Swoole's Server class

[fakharak]

Why do we need to specify an IP (as argument to constructor) for creating an object of Swoole Server ?

I am asking this because i assume that an object of a Swoole's Server class is created only on a system where we write code to create this Server object.

Are we taking IP as argument because we can somehow spin a Swoole's Server object on another / remote-server's IP ? (given that, other IP/Node also has Swoole installed).