Implementation of this use pattern uses existing functionality of the service integration bus. WS-Notification services are configured in each of two cells, and a service integration bus link is configured to link the service integration bus topic spaces between the two buses.
This configuration means that any messages published to a service integration bus topic space (either by the notification broker or a standard client of the bus) is transmitted to the foreign bus. For more information, see Configuring service integration bus links.
Note that this bridging of topic spaces is only permitted for permanent WS-Notification topic namespaces, and not for dynamic topic namespaces.