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Estimation Of Network Path Segment Delays

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A method for estimation of a network path segment delay includes determining a scaled time stamp for each packet of a plurality of packets by scaling a time stamp for each respective packet to minimize a difference of at least one of a frequency and a frequency drift between a transport protocol clock of a host and a monitoring point. The time stamp for each packet is provided by the transport protocol clock of the host. A corrected time stamp for each packet is determined by removing from the scaled time stamp for each respective packet, a temporal offset between the transport protocol clock and the monitoring clock by minimizing a temporal delay variation of the plurality of packets traversing a segment between the host and the monitoring point.
Nichols, Kathleen Marie (Montara, CA)
15/ 134,805
April 21, 2016
GOVERNMENT RIGHTS IN THE INVENTION [0002] This invention was made with government support under Grant No. DE-SC0009498 awarded by the Department of Energy. The government has certain rights in the invention.