Patent ID: 7792109
Filing Date: 2010-09-07
Classification: H04L

Abstract:
1. A router for routing data redundantly relative to a network, the router comprising a circuit card having: a processor; a user interface port for connecting at least one user device with the processor; and a plurality of backbone interface ports at which the router interfaces with a virtual subnet having a plurality of separate backbone subnets for communication of frames of redundant data between the router and the network; the processor configured to receive a data packet through the user interface port, duplicate the received data packet in a plurality of data frames in accordance with an active redundancy protocol, and transmit the frames through the backbone interface ports over one or more of the backbone subnets; the processor further configured to select one of a plurality of frames configured with duplicate data packets in accordance with an active redundancy protocol and received by the router through the backbone interface ports, and reconfigure the data packet of the selected frame for transmission of the data packet through the user interface port to the one or more user devices.