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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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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).
Common Causes

Common Causes

The fault symptom may be any of the following:
  • Traffic shaping does not take effect.
  • The CIR value for traffic shaping in queues cannot be reached.
This fault is commonly caused by one of the following:
  • Traffic shaping parameters are set incorrectly.
  • The CIR value for traffic shaping on an interface is smaller than the sum of CIR values for traffic shaping in queues on the interface. As a result, the bandwidth of traffic shaping in queues cannot be ensured.
  • Packets do not enter queues configured with traffic shaping because the configuration is incorrect. For example, priority mapping is incorrect.
  • Each queue uses the combined scheduling mode and excess packets enter Priority Queuing (PQ) queues. As a result, other queues cannot obtain sufficient bandwidth.
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Updated: 2020-01-07

Document ID: EDOC1000060766

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Downloads: 2938

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