System and method for transmitting compressed frame headers in a multiprotocal data transmission network
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United States of America Patent
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Oct 12, 2004
Grant Date -
N/A
app pub date -
Dec 28, 1999
filing date -
Dec 29, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for transmitting data frames with compressed headers in a multiprotocol data transmission network comprising at least one ingress node transmitting data to egress nodes. Each frame of data includes data bytes and a header which defines the transmission protocols. This method comprises the steps of comparing the address field of the frame to a list of address fields corresponding to the current flows of data, selecting candidate headers associated with flows having the same address, determining a compressed header based upon the position and the number of bytes that differ between the frame header and the candidate header, selecting as reference header the best candidate header based on compression ratio, and transmitting a compressed data frame wherein the data bytes are preceded by a reference label and a compressed header including a field defining the position and the number of consecutive bytes in the portion being compressed, a field including the different bytes, and a field including the portion of header which is not compressed.
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