Multiple buffers for removing unwanted header information from received data packets

A method for removing unwanted header information from a frame in a network is disclosed. It includes: storing beginning bytes of the frame in a first buffer and remaining bytes in a second buffer, where a size of the first buffer is smaller than the second buffer; determining that the unwanted head...

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Hauptverfasser: Karighattam, Kishore, Williams, Robert
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creator Karighattam, Kishore
Williams, Robert
description A method for removing unwanted header information from a frame in a network is disclosed. It includes: storing beginning bytes of the frame in a first buffer and remaining bytes in a second buffer, where a size of the first buffer is smaller than the second buffer; determining that the unwanted header information is stored in the first buffer; copying bytes of the frame after the unwanted header information that are stored in the first buffer over the unwanted header information; reporting a number of bytes of the frame stored in the first buffer to be retrieved; and retrieving the reported number of bytes of the frame stored in the first buffer and the bytes of the frame stored in the second buffer. The copying of bytes occurs exclusively in the first buffer. Thus, removing the unwanted header information requires fewer processor cycles and minimizes latency in the packet receive process.
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title Multiple buffers for removing unwanted header information from received data packets
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