Service Integration Bus
The Service Integration Bus provides the basic framework for the application server to participate in a service oriented architecture and to provide JMS messaging services to applications. Using this framework, it is possible to connect multiple JMS providers into a messaging fabric. A bus can be defined as a group of interconnected messaging engines.
Applications connect to the bus at specific points to send messages which are then routed among the servers and clusters connected to the bus. By interconnecting buses, messages can be sent to servers and clusters that are not directly connected to the local Service Integration Bus. These are called foreign buses.