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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

In V200R001C00 and earlier versions and MPU connection mode, if all forwarding links fail and the master switch has working LPUs, all service ports on the standby switch enter the Error-Down state.

In V200R002C50 and later versions and MPU connection mode, if there is no forwarding link between two member devices, all service ports of one member device enter the Error-Down state.
  • If two member devices are not connected through the forwarding link when setting up a stack or the forwarding link has not been Up after a stack is set up, service ports on the standby switch enter the error-down state.
  • If the forwarding link changes from Up to Down, service ports on the member device with fewer LPUs enter the error-down state. If the two member devices have the same number of LPUs, service ports on the standby switch enter the error-down state.
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Updated: 2020-01-07

Document ID: EDOC1000060766

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