We have a 3 nodes ML cluster.
In order to make CoRB2 or MLCP work with it, there are two ways to configure it.
- Use a load balancer (eg. F5) as the single host for CoRB connection. (Load balancer should be configured for that XCC port for that ML cluster environment.)
- Follow below link to set up multiple XCC hosts to directly connect to the 3 nodes.
Which way is recommended and why?

A load balancer lets you hide the server-side details from the connecting clients but requires an extra thing to setup and manage. It's worth the headache to keep some flexibility for a long-term deployment.
But you just want to run something quickly? List the hosts at the client and go.