1. Virtual Signaling Transfer Point User Guide
  2. vSTP Features
  3. Segmented XUDT Support
  4. Troubleshooting

2.13.4 Troubleshooting

The troubleshooting steps for vSTP XUDT Segmentation feature are as follows:

  • If a Segmented Class 1 XUDT message is received for reassembly, then the measurement VstpRxSccpXUDTSgmnts is pegged to count the Number of ingress segmented XUDT messages received from network.
  • If the reassembly procedure is successful, then the measurement VstpRxSccpReassProcSucc is pegged to count the Number of times reassembly procedure completed successfully.
  • If the reassembly procedure is successful, then the measurement VstpRxSccpReassSegSucc is pegged to count the Number of Segmented XUDT Messages reassembled successfully.
  • If the reassembly procedure fails, then the measurement VstpRxSccpReassProcFail is pegged to count the number of times reassembly procedure failed.
  • If the reassembly procedure fails, then the measurement VstpRxSccpSgmntsReassFail is pegged to count the Number of segmented XUDT messages that encountered Reassembly failure due to any errors.
  • If the reassembly procedure fails, then the measurement VstpRxSccpSgmntsDisc is pegged to count the Number of segmented XUDT messages Discarded, this measurement is pegged if alwMsgDuringRsmblyErr in the sccpoptions MO is False.
  • If a reassembled message is received for segmentation then the measurement VstpTxSccpLargeMsgs is pegged to count the number of reassembled large messages received for segmentation.
  • If the segmentation procedure is successful, then the measurement VstpTxSccpSegProcSucc is pegged to count the number of times segmentation procedure completed successfully.
  • If the segmentation procedure fails, then the measurement VstpTxSccpSegProcFail is pegged to count the number of times segmentation procedure failed.
  • If reassembly procedure fails, then check the event SCCP XUDT Reassembly Failure is raised in the vSTP GUI with the following reasons:
    • out of sequence segments received
    • reassembly Timer Expired
    • Internal Error
    If the reassembly failure occurs due to reassembly Timer Expiry, then user may need to adjust the value of the parameter reassemblyTimerDurationAnsi or reassemblyTimerDurationItu defined in sccpoptions MO.
  • If segmentation procedure fails, then check the event SCCP XUDT Segmentation Failure raised in the vSTP GUI. The event is raised with the reason number of required segments is greater than the maximum number of segments. In case of this error, adjust the value of segmentedMSULength parameter in sccpoptions MO.

Contact My Oracle Support in case the problem persists.