Loopback Configuration Options

ServiceBusFactory.New(sbc =>
{
  //loopback is the default
  sbc.ReceiveFrom("loopback://localhost/queue");
});

Note

Great for testing, not great for production.

So the loopback uses the protocol ‘loopback’ - localhost is the machine name and then you can use whatever you want for the ‘queue’ bit as long as each bus instance has a unique one, you should be good to go.