Network connectivity measurement system and method

摘要

A system and method for detecting a transient outage of an Internet Protocol (IP) network. A probe sending device sends probe packets over the IP network. A probe packet includes a probe sequence number and a timestamp value issued by the probe sending device. A probe receiving device receives a current probe packet. The probe receiving device overwrites probe packet data obtained from a last received probe packet with the current probe packet when the current probe sequence number exceeds the sequence number of the last received probe packet by one. The probe receiving device stores the current probe packet data obtained from the current probe packet when the current probe sequence number exceeds the sequence number of the last received probe packet by more than one.

主权项

1. A method for detecting a transient outage of an Internet Protocol (IP) network, the method comprising:
receiving by a probe receiving device a stream of probe packets from a probe sending device, wherein the stream of probe packets comprises a current probe packet, wherein the current probe packet comprises a current probe sequence number and a current timestamp value issued by the probe sending device; overwriting by the probe receiving device probe packet data obtained from a last received probe packet with the current probe packet when the current probe sequence number exceeds a sequence number of the last received probe packet by one, wherein the last received probe packet comprises a last probe sequence number and a last timestamp value issued by the probe sending device; storing by the probe receiving device probe packet data obtained from the current probe packet when the current probe sequence number exceeds the sequence number of the last received probe packet by more than one; and detecting by the probe receiving device a transient network fault when the current probe sequence number exceeds the sequence number of the last received probe packet by more than one and a difference between a time of arrival of the current probe sequence number and a time of arrival of the last probe sequence number exceeds a configurable threshold.