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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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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).
Why Does the Status of the Connected Ethernet Interfaces Change Between Up and Down?

Why Does the Status of the Connected Ethernet Interfaces Change Between Up and Down?

This problem occurs because auto-negotiation is enabled on one interface but disabled on the other interface. Configure both interfaces to work in the same auto-negotiation mode. When auto-negotiation is enabled on one interface but disabled on the other interface, packet loss may occur even when both interfaces are in the Up state.

This problem may also occur when the network cable is loose.

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Updated: 2019-05-10

Document ID: EDOC1000079719

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