WAS v8.5 > WebSphere applications > Messaging resources > Interoperation with WebSphere MQ > Interoperation using a WebSphere MQ link > Publish/subscribe messaging through a WebSphere MQ linkBroker profile on a WebSphere MQ link
A broker profile on a WebSphere MQ link defines a connection through a WebSphere MQ link to a WebSphere MQ queue manager, for the purpose of publish/subscribe messaging with a WebSphere MQ network.
A broker profile applies to the connection between WAS and a single WebSphere MQ queue manager or separate publish/subscribe broker. It contains the following information:
- The name of the WebSphere MQ link.
- The name of the service integration bus in WAS.
- The name of the messaging engine in WAS.
- The name of the queue manager in WebSphere MQ. This queue manager does not have to be the same as the WebSphere MQ gateway queue manager, provided that it can be reached from the WebSphere MQ gateway queue manager. If we are using a separate publish/subscribe broker, this queue manager is the WebSphere MQ queue manager to which the message broker is connected. You must ensure the service integration bus has sufficient authority to send subscription requests to the queue manager or separate publish/subscribe broker.
We can define multiple broker profiles on a single WebSphere MQ link, to connect to multiple queue managers in the WebSphere MQ network.
You define one or more topic mappings for a broker profile. A topic mapping links a specific topic in the service integration bus with its equivalent in the WebSphere MQ network. For more information about topic mappings, see Topic mapping on a WebSphere MQ link.
The broker profiles, along with their topic mappings, form a publish/subscribe bridge with the WebSphere MQ network. The publish/subscribe bridge connects as a subscriber to receive messages from the WebSphere MQ network and pass them to applications in WAS, and it connects as a publisher to publish messages on topics in the WebSphere MQ network. For a description of how the publish/subscribe bridge operates, see Publish/subscribe bridge on a WebSphere MQ link.
Related
Add or modifying a publish/subscribe broker on the WebSphere MQ link
Define permissions for a WebSphere MQ link publish/subscribe broker to work with WebSphere MQ