An EIP processor that handles messages that cannot be delivered to the intended recipient.

A special destination used by the message broker to hold undeliverable messages.

A logical holding area for messages in a message broker. Clients publish messages to and consume messages from destinations.

See Also queue, topic.

A mechanism that advertises the list of available message brokers to message clients and other message brokers.

See Also dynamic discovery.

A message consumer that receives all messages published on a topic, including those published while the subscriber is inactive.

A mechanism for clients to become aware of the existence of brokers through the use of a discovery agent.

See Also discovery agent.