Combining topic spaces in publish/subscribe networks

Combine the topic space of a queue manager with other queue managers in a publish/subscribe cluster or hierarchy. Combine publish/subscribe clusters, and publish/subscribe clusters with hierarchies.

We can create different publish/subscribe topic spaces by using the building blocks of CLUSTER, PUBSCOPE and SUBSCOPE attributes, publish/subscribe clusters, and publish/subscribe hierarchies.

Starting from the example of scaling up from a single queue manager to a publish/subscribe cluster, the following scenarios illustrate different publish/subscribe topologies.