Service integration buses can link to WebSphere® MQ networks. Applications that are connected to a WebSphere MQ queue manager or queue-sharing group can send messages to an application that is attached to a service integration bus, and vice versa.
A WebSphere MQ link connects a messaging engine to a WebSphere MQ queue manager or queue-sharing group (known as the gateway queue manager) by using sender and receiver channels, thereby connecting the bus and the WebSphere MQ network.
The WebSphere MQ link provides connectivity not just with the messaging engine that hosts the link, but also with the other messaging engines in the bus. All the messaging engines in the bus appear to the WebSphere MQ network as if they were a single queue manager (they inherit the queue manager name from the WebSphere MQ link).
WebSphere MQ links can be used in a number of different configurations as shown in Service integration buses with links to a WebSphere MQ network and Service integration bus with links to WebSphere MQ networks. A messaging engine can contain multiple WebSphere MQ links.
You can also use a WebSphere MQ link to form a publish/subscribe bridge that allows publication and subscription between WebSphere Application Server and the WebSphere MQ native publish/subscribe capability.