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System and method for identifying upper layer protocol message boundaries

  • US 8,451,863 B2
  • Filed: 04/12/2010
  • Issued: 05/28/2013
  • Est. Priority Date: 03/08/2002
  • Status: Active Grant
First Claim
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1. A method for implementing Remote Direct Memory Access/Direct Data Placement (“

  • RDMA/DDP”

    ), comprising;

    generating the location and content of a marker by adding a preset interval to the location of a previous marker by a network processor; and

    forming a frame for an RDMA/DDP protocol data unit (“

    PDU”

    ) by the network processor, whereinif the location of the generated marker is within the boundaries of a TCP segment, the frame includes information on the location of the RDMA/DDP PDU within the frame, the information on the location comprises the generated marker that points backwards to a framing header, andif the location of the generated marker is outside the boundaries of a TCP segment, the frame does not include the generated marker and the PDU data is placed after the framing header.

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