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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

This fault is commonly caused by one of the following:
  • The link between users is faulty.
  • The interfaces connected to the users are shut down manually or the physical interfaces are damaged.
  • The switch learns incorrect MAC addresses.
  • Layer 2 port isolation is configured on the switch.
  • Incorrect static Address Resolution Protocol (ARP) entries are configured on the user terminals.
  • Incorrect mappings between interfaces and MAC addresses are configured on the switch.
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Updated: 2020-01-07

Document ID: EDOC1000060766

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