When LAN Redundancy is enabled, an iFIX iClient establishes and maintains two network paths to the SCADA Server or two paths to each SCADA in a Server pair. These managed connections are referred to as the active and standby network paths. iFIX monitors the standby network path by periodically sending messages to ensure that it remains available.
When the active network path becomes unavailable, iFIX automatically fails over to the standby network path. You can add links to your pictures to monitor the availability of the standby path. For more information, refer to the Network Status Display Fields section.
Multiple LAN support is always enabled when you have more than one available network path. This means that if you have several available and enabled network paths and LAN Redundancy is not enabled, iFIX attempts to connect to all available paths and keeps the first successful connection. Any other successful connections are closed.
LAN Redundancy, like Enhanced Failover, is not automatically enabled. You must enable LAN Redundancy on all the nodes on which you want to use LAN Redundancy. If LAN Redundancy is enabled, iFIX establishes connections on each of the two paths and manages them both. LAN Redundancy is not supported on any version of FIX (FIX32) for Windows.
LAN Redundancy can be used with or without Enhanced Failover enabled.
