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OSN 500 550 580 V100R008C50 Commissioning and Configuration Guide 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Testing ATM/IMA Services

Testing ATM/IMA Services

Use the ATM OAM function to test the connectivity of UNI-NNI ATM/IMA services in order to ensure that ATM/IMA services are normal.

Prerequisites

  • End-to-end UNI-NNI ATM/IMA services are configured.
  • You are an NM user with Operator Group rights or higher.

Tools, Equipment, and Materials

U2000

Test Connection Diagram

Figure 1-13 shows the connections for testing the connectivity of ATM/IMA services.

Figure 1-13  Connections for testing the connectivity of ATM/IMA services

Procedure

  1. On NE1 and NE2, set the automatic loopback release function of the UNI ports receiving ATM/IMA services to Disabled.
    1. On the left side of the Automatic Disabling of NE Function window, select NE1 and NE2 in the Object Tree. Then, click . The Automatic Disabling of NE Function window lists the selected NEs.
    2. For SDH Optical/Electrical Interface Loopback of NE1 and NE2, set Auto Disabling to Disabled.

      NOTE:

      When Auto Disabling of SDH Optical/Electrical Interface Loopback on an NE is set to Disabled, the automatic loopback release function is disabled for all SDH optical ports, PDH electrical ports, and ATM/IMA groups on the NE.

  2. On NE1, set an inloop for the UNI port receiving ATM/IMA services as shown in the test connection diagram.
    1. In the Main Topology of the U2000, right-click NE1. Then, choose NE Explorer from the shortcut menu. The NE Explorer window is displayed.
    2. In the NE Explorer window, select NE1 and then choose Configuration > Packet Configuration > Interface Management > ATM IMA Management from the Function Tree.
    3. Click the ATM Interface Management tab, and then select the IMA group carrying the ATM/IMA service to be tested.
    4. Double-click Loopback of the IMA group. In the menu that is displayed, select Inloop.
    5. Click Apply.
  3. On NE2, set an inloop for the UNI port receiving ATM/IMA services as shown in the test connection diagram with reference to 2.
  4. Select NE1 in the NE Explorer, and then choose Configuration > Packet Configuration > ATM OAM Management from the Function Tree.
  5. Click the Remote Loopback Test tab, and select the ATM/IMA services to be tested.
  6. For the ATM/IMA services whose Connection Direction is Source, set Segment and End Attribute to Endpoint.

    NOTE:

    Segment and End Attribute of an ATM/IMA service specifies the type of ATM OAM cells transmitted during an LB test.

    • If Segment and End Attribute is set to Segment point, seg_LB cells will be transmitted.
    • If Segment and End Attribute is set to Endpoint, e-t-e_LB cells will be transmitted.

  7. Set Loopback Point NE of the ATM/IMA services to be tested to NE2.
  8. Click Test to start an LB test. The test progress bar is displayed. In the Operation Result dialog box that is displayed upon the completion of the test, click Close.
  9. Check Test Result of the tested ATM/IMA service.
    1. Normally, Test Result should be Test Succeeded. If such is the display, view the new performance events to verify that the LB test succeeded.

      1. On the Main View, click the shortcut icon. In the Query Event Logs window that is displayed, select Reporting of LB status information about the new performance events.
      2. Right-click Reporting of LB status information, and select Details .... from the shortcut menu. In the window, view the additional information to confirm the test result.
      3. Normally, the test result should be a success. If it is a failure, handle the problem according to the ATM/OAM service fault handling description in the Troubleshooting Guide.

    2. If the test result is Test Failed or other failure information, handle the problem according to the ATM/OAM service fault handling description in the Fault Handling.
  10. On NE1 and NE2, release the inloops for the UNI ports receiving ATM/OAM services with reference to 2.
  11. Repeat 2 to 10 to test the connectivity of the other ATM/OAM services on NE1 and NE2.
  12. For SDH Optical/Electrical Interface Loopback on NE1 and NE2, set Automatic Disabling to Enabled with reference to 1.
  13. Repeat 1 to 12 to test the connectivity of the ATM/IMA services on the other NEs.
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Updated: 2019-01-21

Document ID: EDOC1100020976

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