Out of order checksum calculation for fragmented packets
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United States of America Patent
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Apr 17, 2012
Grant Date -
N/A
app pub date -
Jul 31, 2008
filing date -
Aug 19, 2002
priority date (Note) -
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Abstract
A network interface controller comprises a first interface that sequentially receives second and first fragments of a packet comprising second and first data portions of the packet, respectively. A checksum adder calculates a first checksum for the first fragment based on a second checksum for the second fragment and the first data portion of the first fragment. The network interface controller writes the first checksum to a checksum field in a header of the packet.
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