Method and apparatus for monitoring a communication link based on TCP/IP protocol by emulating behavior of the TCP protocol
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United States of America Patent
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Jan 23, 2001
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N/A
app pub date -
Jul 1, 1998
filing date -
Jul 1, 1997
priority date (Note) -
Expired
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Abstract
A method and apparatus for monitoring a communication link based on TCP/IP protocol obtains a protocol data unit (PDU) between communication systems. A emulation log is produced by analyzing the PDU in a PDU analysis part. An event sequence log is produced by estimating an event sequence of both communication systems based the emulation log in an event sequence estimation part. The behavior and the internal procedure of TCP is emulated by using the specific TCP state transition specification, internal variables of TCP, internal variables indicating the status and internal procedures in the TCP emulation part.
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