The broker probe can check the broker by using a simple message flow test, if SC3_IN and SC3_OUT are set to the inbound and outbound queues.
If set, the broker probe puts a message to the inbound queue referenced by the SC3_IN variable. After waiting two seconds, the broker probe checks that the message has arrived at the outbound queue referenced by the SC3_OUT variable.
If SC3_IN and SC3_OUT are set to NONE the simple message flow is not performed. Instead the broker probe checks that the bipservice process is still running.
SC3_IN and SC3_OUT are set when the broker resource was configured and registered within /opt/SUNWscmqi/sib/util/sib_config.