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CloudEC V600R019C00 Troubleshooting (Enterprise On-premises, Convergent Conference)

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USM Does Not Respond to SIP Messages

USM Does Not Respond to SIP Messages

Symptom

Based on message tracing on the peer device, the USM does not respond to SIP messages sent by the peer device.

Procedure

  1. In messages traced on the peer device, check whether the destination IP address is the signaling IP address of the USM and the port number is 5060.

    • If the destination IP address or port number is incorrect, change the destination IP address or port number.
    • If the destination IP address and port number are correct, go to 2.

  2. Trace SIP messages on the USM and check whether the messages are received by the USM at the service layer.

    1. Log in to the HUAWEI Operation & Maintenance System.
    2. Click the Maintenance tab at the bottom of the window.
      Figure 11-1 Navigation window
    3. Click the USM NE, double-click SIP, enter the remote IP address, and click OK.
    4. Perform related service operations, for example, initiate a call.
    5. If the message tracing result is displayed in the right pane, go to 3.
    6. If no message tracing result is displayed in the right pane, go to 4.

  3. Trace IMPU messages on the USM.

    1. Log in to the HUAWEI Operation & Maintenance System.
    2. Click the Maintenance tab at the bottom of the window.
    3. Click the USM NE, double-click IMPU, enter the user IMPU number, and click OK.
      Figure 11-2 Tracing IMPU messages
    4. Perform related service operations, for example, initiate a call.
    5. Search for information generated at the corresponding time point. If the fault can be located based on the information, rectify the fault. If the fault cannot be located, contact Huawei technical support engineers.

  4. Trace IP address on the CGP and check whether the messages are received by the USM.

    1. Log in to the HUAWEI Operation & Maintenance System.
    2. Click the Maintenance tab at the bottom of the window.
    3. Click the CGP NE, double-click IP, set related parameters, and click OK.

      Set key parameters as follows:

      • ME ID: Select the ID of the USM NE.
      • VM Name: Select the VM where the active IFM module is located.
      • Port Name: Select VNIC4.
      • IP1 address: Enter the signaling IP address of the USM.
      • IP2 address: Enter the peer IP address.
      • IP direction: Select BIDIRECTIONAL.
      • Combination: Select UDP.
      Figure 11-3 Tracing IP messages
    4. Perform related service operations, for example, initiate a call.
    5. If no message tracing result is displayed in the right pane, check the network.
    6. If the message tracing result is displayed in the right pane, go to 5.

  5. Run the ACT SYSLOG command under NE 0.

    Set key parameters as follows:

    • Deployment type: Select VM.
    • Virtual machine name: Select the VM corresponding to the IFM module where the signaling IP address is located.
    • Level: Select DEB(Debugging).

  6. Download log files to the local PC.

    1. In the HUAWEI Operation & Maintenance System, choose Maintenance > File Transfer Service. The File Transfer Service window is displayed.
    2. Download USM NE debug logs generated in the time period when IP messages are traced.
      Figure 11-4 Downloading log files

  7. Search for SIP message header fields of the corresponding type in the log files that are downloaded.

    • If SIP message header fields of the corresponding type are found in the log files, locate the fault based on log information. If the fault cannot be located, contact Huawei technical support engineers.
    • If SIP message header fields of the corresponding type are not found in the log files, go to 8.
    DEB  M2008P000F63S01M 2017-03-25 08:48:48 [dpumain.c:394] <DpuTptdUdpIpv4RecvProcForMccp> recv ipv4 message
    DEB  M2008P000F63S01M 2017-03-25 08:48:48 [dpumain.c:424] <DpuTptdUdpIpv4RecvProcForMccp> OPTIONS sip:

  8. Run the SET USMSIPCFG:; command under the USM NE to reopen the port. Repeat 4 through 7. If the fault persists, contact Huawei technical support engineers.
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Updated: 2019-08-07

Document ID: EDOC1100059098

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