DG broker connections

setevent = '16634 trace name context forever, level 1'and restart the Data Guard Broker Process. This will record all Connectstrings used by the Data Guard Broker in the DRC.LOG-Files. So you can see which exact Connect is actually being used by the Data Guard Broker

metalink: [ID 745201.1]

to start and top dgbALTER SYSTEM SET DG_BROKER_START=[TRUE/FALSE];