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IP Failover mode enables you to use two CC-SG LAN ports to implement network failover and redundancy. Only one LAN port is active at a time.
See About CC-SG LAN Ports for the locations of the Primary LAN and Secondary LAN ports on each CC-SG model.
If the Primary LAN is connected and receiving a Link Integrity signal, CC-SG uses this LAN port for all communications. If the Primary LAN loses Link Integrity, and Secondary LAN is connected, CC-SG will failover its assigned IP address to the Secondary LAN. The Secondary LAN will be used until the Primary LAN returns to service. When the Primary LAN is back in service, CC-SG automatically reverts to using the Primary LAN.
As long as one LAN connection is viable, a client should not notice any disruption in service during a failure.