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ServiceMix allows for different message dispatch policies within the Normalized Message Router (NMR) Broker.
There are three four basic types, that have different characteristics and are suited to different usage cases.

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Straight-through flow. A MessageExchange is routed straight to it's destination with no staging or buffering. A straight through flow is best suited for the cases where the ServiceMix JBIContainer is deployed with simple flows (no state) or embeddingembedded, or where latency needs to be as low as possible.

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A JMS Flow is used for cases where you need collaboration between more than one ServiceMix JBIContainer (for fail-over or scalability).
Component deployment happens in the same way as a normal SericeMix JBI container (both for POJO and archive Component deployment) but all the containers in the cluster are notified of a deployment, and the JMS Flow will handle automatic routing (and failover) of MessageExchange(s) between the container instances.
A Message Queue is used for each Component instanceJBI endpoint, so multiple instances of the same named Component will have requests load balanced across them.

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