The iWay Reverse Invocation Proxy has the ability to distribute transactions to multiple iWay worker instances on other hosts. The workers register themselves with the relay, informing it about which services they (the workers) can provide. Workers may register for mutually exclusive services; workers may register to handle the same services; or workers may do a combination of both, resulting in partially overlapping areas of responsibility.
The proxy is intended for applications where direct connection from the internet/DMZ to the enterprise intranet is not permitted for security reasons. The proxy itself may be horizontally scaled and/or set up to support failover using the mechanisms previously discussed.