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Gateway using multicast to unicast conversion

  • US 10,355,977 B2
  • Filed: 08/09/2017
  • Issued: 07/16/2019
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a multicast frame receiving engine configured to receive a multicast frame directed to a multicast group;

    a destination unicast engine coupled to the multicast frame receiving engine and configured to identify a unicast address of an intended recipient device and a unicast address of an unintended recipient device, wherein the intended recipient device and the unintended recipient device are members of the multicast group;

    a multicast frame expansion engine coupled to the destination unicast engine and configured to convert the multicast frame into a set of unicast frames including a first unicast frame and a second unicast frame, the first unicast frame being directed to the intended recipient device using the unicast address of the intended recipient device, the second unicast frame being directed to the unintended recipient device using the unicast address of the unintended recipient device;

    an unintended recipient device frame removal engine coupled to the multicast frame expansion engine, the unintended recipient device frame removal engine configured to prevent any of the multicast frame or the second unicast frame from being sent to the unintended recipient device by removing the second unicast frame from the set of unicast frames;

    an intended recipient device frame providing engine coupled to the multicast frame expansion engine and the unintended recipient device frame removal engine and configured to provide the first unicast frame to the intended recipient device.

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