| 摘要 |
A method for measuring unidirectional transmission properties, e.g., packet delay, delay-time fluctuations, and results derivable therefrom, in a telecommunications network. Test packets are transmitted from a first measuring computer via a measurement path to a second measuring computer. The first measuring computer records the departure time of the outgoing test packet. This clock time is transmitted along with the test packet. The second measuring computer records the arrival time of the test packet. In a subtraction operation between the departure time from the first measuring computer and the arrival time in the second measuring computer, the delay time of the test packet, i.e., the measuring result, is determined. To determine the measuring result, the two measuring computers are synchronized in time by satellite systems, e.g., GPS (global positioning system), in that the clock time is continuously transmitted to both measuring computers.
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