State Replication is the simpler of Talon's two High Availability models. With State Replication, Talon replicates changes to state and the outbound messages emitted by your application's message handlers. In the event of a failover to a backup or a cold start recovery from a transaction log your application's state is available at the same point where processing left off, and the engine will retransmit any outbound messages that were left in doubt as a result of the failure.