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OAM test method and device for communication system

A test method and technology of test equipment, applied in the field of communication, can solve the problems of inability to synchronize OAM function test workload, cumbersome test steps, prone to operation and judgment errors, etc.

Active Publication Date: 2017-01-11
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an OAM testing method and equipment for a communication system, and its purpose is to solve the problem that the existing OAM testing equipment cannot test the synchronous OAM function of the synchronous network and system under abnormal conditions, and the workload is heavy and the testing steps are cumbersome. Prone to problems such as operation and judgment errors

Method used

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  • OAM test method and device for communication system

Examples

Experimental program
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Effect test

example 1

[0110] Example 1: Testing the temporal degradation output function of the system under test.

[0111] The test system stores the parameter mapping relationship of different time interface protocols. The test system can support the output and input of two time interfaces, PTP and 1PPS+TOD, and automatically change one of the parameters of the first signal output by the test system to test the output of the system under test. The signal of the second signal changes. If the output and input are different time interfaces, it can test whether the parameters of another time interface change according to the mapping relationship, and automatically give the result of whether the test passes.

[0112] see image 3 , the test system outputs the first signal to the system under test, and at the same time collects the second signal output by the system under test, automatically changes the parameter ClockClass or second pulse state of the first signal of the test system, and analyzes whe...

example 2

[0117] Example 2: Test the function of selecting sources for different time interfaces of the device under test.

[0118] The test system supports the automatic test of the source selection function of different time interfaces of the equipment. The test system stores the parameter mapping relationship of different time interface protocols, outputs the signals of two time interfaces at the same time, automatically changes the parameters of one of the output time interfaces, and causes the device time source to change. The test system passes the test output of the system under test. The parameters in the signal (PTP, 1PPS+TOD) automatically analyze whether the selected source of the system under test changes through the parameters, and automatically give the result of whether the test is passed or not.

[0119] see Figure 4 , the test system sends the first signal to the system under test, that is, the PTP and 1PPS+TOD time signal; at the same time, it obtains the second sign...

example 3

[0131] Example 3: Test the leap second handling functionality of the system under test.

[0132] see Figure 5 , the test system sends the first signal to the system under test, that is, the PTP and 1PPS+TOD time signal; at the same time, it obtains the second signal fed back by the system under test, that is, the PTP and 1PPS+TOD time signal. Automatically change the parameter currentUtcOffset of the PTP signal in the first signal or Leap Seconds in the 1PPS+TOD signal, and automatically analyze whether the leap second of the second signal changes with the output signal (the parameter currentUtcOffset of the PTP output signal or the 1PPS+TOD output signal Leap Seconds). The test system supports the conversion correspondence between the parameters currentUtcOffset and Leap Seconds, and the value of currentUtcOffset=the value of Leap Seconds+19. The specific test steps are as follows:

[0133] Step 1: The test system sends the PTP time signal and the 1PPS+TOD time signal to ...

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Abstract

The invention provides an OAM test method and device for a communication system. The method comprises the steps of sending a first signal to a tested system and receiving a second signal fed back by the tested system, wherein the second signal is the feedback signal of the first signal; changing a first parameter of the first signal at an interval of first preset time; collecting parameters of the second signal at the interval of second preset time, obtaining at least one parameter from the parameters of the second signal, thereby forming a second parameter set, wherein the at least one parameter has a mapping relationship with the first parameter according to a communication interface protocol; and generating a test result according to the first parameter and the second parameter set. According to the method and the device, a simulation scene and an automatic test method are provided for testing the OAM function and performance of the communication system, a time degradation output function, frequency synchronization and time synchronization association mechanism of the OAM is verified, the association verification for different time interface protocols is realized, and the automatic test for a source selection function among different time interfaces of the device is realized.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to an OAM testing method and equipment for a communications system. Background technique [0002] OAM refers to the operation, maintenance and management of the communication system. In order to make the communication system operate normally, it is necessary to test the time synchronization and frequency synchronization of the communication system maintained by OAM. Existing OAM test equipment can test functions and performances such as the accuracy of time and frequency synchronization. However, the existing test equipment tests the functions and performances of the synchronization network and the system under normal working conditions, and cannot test the synchronization network under abnormal conditions. and the synchronous OAM function of the system for testing; the existing test equipment cannot analyze the changes of the tested equipment caused by the change of the out...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/24
Inventor 韩柳燕李晗胡新天王磊
Owner CHINA MOBILE COMM GRP CO LTD
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