Using rtiddsping (DDS version 5.3.1) like so :
machine1> ./rtiddsping -domainId 12 -transport 1 -reliable -subscriber
machine2> ./rtiddsping -domainId 12 -transport 1
^^^ does NOT work : message is "DataListener::on_rquested_incompatible_qos Incompatible policies: [2, ];"
but if i do this:
machine1> ./rtiddsping -domainId 12 -transport 1
machine2> ./rtiddsping -domainId 12 -transport 1 -reliable -subscriber
it works.