If you are using a direct_connect_port_range setting in the rtserver.cm file then the number of
ports (and these ports must be opened on the firewall) MUST be equal to the maxserver setting+quesize.
So if maxserver is 195 and queuesize is set to 2 then the port range must be 197 ports.
It has been interesting to read your contributions. Today I have a similar doubts. First of all, is there a relationship between the number of concurrent users and the memory needed at the broker server? How do your dimension or size the suggested RAM and CPU requirements?