The function of a bridge is to consume messages from a source queue, and forward them to a target address, typically on a different HornetQ server. Bridges cope with unreliable connections, automatically reconnecting when the connections become available again. HornetQ bridges can be configured with filter expressions to only forward certain messages.
JMS bridge cannot be deployed to EAP 6 server, which includes HornetQ configured as a dedicated backup. The reason is that Transaction Manager on a dedicated backup server is unable to recover transactions previously started on the HornetQ live server.