Measuring packet transmission delays
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United States of America Patent
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Jun 27, 1995
Grant Date -
N/A
app pub date -
Nov 23, 1992
filing date -
Nov 23, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A packet transmission system comprising a network of one or more nodes (1) each comprising a number of inputs connected via packet switching means to a number of outputs each of which has storage means (11) associated with it in which to store a queue of packets to be outputted; characterized in that each node (1) is provided with timer means (14) to measure the time each packet spends in a queue of said storage means (11); and stamping means (12) to add to a time stamp field (TS) of each packet before it is outputted from the node, the time the packet has spent in a queue as measured by the timer means (14).
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