METHOD AND SYSTEM FOR PARALLEL REDUNDANCY PROTOCOL IN CONNECTED NETWORKS

-23 The data communication system and method is disclosed comprising at least a first network and a second network, wherein a first node interface is connected to a second node interface over the first network and to a second node interface over the second network. The first network and second network being operated in parallel. The data communication system sends data from the first node interface to the second node interface via the first network using a first network address and sends data from the first node interface to the second node interface via the second network using a second network address, wherein the second network address is not equivalent to the first network address. Start Look Up MAC 701 Address received from Protocol stack 702 Network Source No B MAC ddress? Yes 706. 70 706 Network NoDestination 70 Destination No MAC MAC Address is in ddress? Network 2 Yes 710Create Create 709 AltSendCopy AltSendCopy of Data Packet of Data Packet Use Partner Use Partner 711 Source MAC Source MAC 712 Address Address in AltSendCopy in AltSendCopy Use Partner Use Partner Destination MAC Destination MAC 713 714 Address Address in AltSendCopy in Original Packet Send Original Packet on Network 1 Send AltSendCopy 720// Packet on Network 2