Configuring Dataguard Broker:
This is a beautiful database article to configure dataguard broker in 11G . It also covers the below topics:
1: Demonstrates how to set up and utilize Data Guard Broker features in Oracle Database 11g.
2: Configuration of standby redo logs on the standby database.
3: Configuration of the primary and standby databases to ensure successful setup of Data Guard Broker
4: Data Guard Broker configuration on primary and standby database servers
5: Using Data Guard Broker to perform a switchover operation
6: Using Data Guard Broker to perform a switchback operation
I hope the above link will definitely help you to configure and use data guard broker in your environment.