Method and device for calculating line transmission delay
A technology of transmission delay and calculation method, applied in the field of communication, can solve problems such as inaccurate transmission delay of lines, and achieve the effect of improving accuracy
Active Publication Date: 2021-11-30
HUAWEI TECH CO LTD
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Problems solved by technology
[0007] This application provides a method and device for calculating line transmission delay to solve the problem that the line transmission delay calculated by the prior art is inaccurate, or the optical fiber information must be obtained to calculate the line transmission delay
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Embodiment Construction
[0138] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0139] The embodiment of the present invention discloses a method and device for calculating line transmission delay, so as to solve the problem that the line transmission delay calculated by the prior art is inaccurate, or the line transmission delay must be obtained only when optical fiber information is obtained.
[0140] The first embodiment of the present invention discloses a method for calculating line transmission delay. see Figure 4 In the schematic diagram of the application scenario shown, the first network element is connected to the second network element through the first line and the second line respectively, wherein both the first line and the second line can transmit and receive message information in two directions . In addition, if the first line and the second line are optical fibers, the first line and the second line can pass through an ...
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The embodiments of the present application disclose a method and device for calculating line transmission delay. The solution is applied to the first network element or the second network element, and a first line and a second line are respectively set between the first network element and the second network element. The first network element sends the first packet with the first wavelength to the second network element through the first line, the second network element transmits the first packet back to the first network element through the second line, and the first network element passes the The second line sends the second packet with the second wavelength to the second network element, and the second network element transmits the second packet back to the first network element through the first line. In this process, T11, T12, T21 and T22, and calculate the line transmission delay of the first message and the line transmission delay of the second message accordingly. Through this solution, the line transmission delays of the first wavelength and the second wavelength can be calculated and obtained, the accuracy of obtaining the line transmission delays can be improved, and fiber information such as the dispersion coefficient of the fiber and the length of the fiber need not be used.
Description
technical field [0001] The present application relates to the communication field, and in particular to a method and device for calculating line transmission delay. Background technique [0002] In the current transmission system, a single-line bidirectional way is usually used to transmit information between network elements of two stations, such as a single-fiber bidirectional way. see figure 1 The schematic diagram of the connection relationship between the first network element and the second network element is shown. In this figure, the first network element and the second network element transmit information in a single-fiber bidirectional manner, wherein the connection between the first network element and the second network element is through An optical fiber is connected, and the optical fiber is connected to the first network element and the second network element through an optical line interface board (English: fiber interface unit forsync timing, abbreviation: ...
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IPC IPC(8): H04L12/26
CPCH04L43/06H04L43/0852
Inventor 王锋
Owner HUAWEI TECH CO LTD