Configure topic space mappings between service integration buses

A topic space mapping allows subscribers on the local topic space to receive messages published in the foreign topic space. We can configure topic space mappings between a local service integration bus and a foreign service integration bus.

A topic space mapping allows subscribers on the local topic space to receive messages published in the foreign topic space. For publications to flow from the local topic space into the foreign bus, an equivalent topic space mapping is required by the foreign bus.

To publish messages from a local bus to a foreign bus that is linked indirectly through a third bus, configure topic space mappings between the local bus and the intermediate bus, and between the intermediate bus and the foreign bus. The messages can be for publication to the foreign bus only, or to all three buses. To publish messages only to the local and foreign buses, these two buses must be connected directly.

To publish messages from a local service integration bus to a foreign bus that represents a WebSphere MQ network, define topic mappings on the broker profile associated with the WebSphere MQ link.

For more details about the foreign bus and publish/subscribe messaging between buses, see Foreign buses.

Subtopics

• Create topic space mappings
  A topic space mapping allows subscribers on the local topic space to receive messages published in the foreign topic space. We can create topic space mappings between two service integration buses.

• Delete topic space mappings
  We can delete topic space mappings so that subscribers on the local topic space cannot receive messages published in the foreign topic space.

• Listing topic space map entries
  A topic space mapping allows subscribers on the local topic space to receive messages published in the foreign topic space. We can list topic space map entries to view existing map entries.

Subtopics

• Create topic space mappings
  A topic space mapping allows subscribers on the local topic space to receive messages published in the foreign topic space. We can create topic space mappings between two service integration buses.

• Delete topic space mappings
  We can delete topic space mappings so that subscribers on the local topic space cannot receive messages published in the foreign topic space.

• Listing topic space map entries
  A topic space mapping allows subscribers on the local topic space to receive messages published in the foreign topic space. We can list topic space map entries to view existing map entries.

Related concepts

Interconnected bus configurations

Related tasks

Add topic mappings on the WebSphere MQ link publish/subscribe broker

Related information:

Topic space map entries [Settings]

Topic space mapping [Settings]