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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).
What Functions Do Drop Profiles Have?

What Functions Do Drop Profiles Have?

Drop profiles have the following two functions:

  • By default, AR series routers use the tail drop method and discard data packets at the end of a queue when congestion occurs. The tail drop method causes global Transmission Control Protocol (TCP) synchronization and reduces link usage. Drop profiles and the Weighted Random Early Detection (WRED) can solve this problem.
  • By configuring different priority-based drop probabilities in drop profiles, you can ensure that packets with a low priority are dropped preferentially, and ensure the quality of high-priority and low-delay services.
Updated: 2019-05-10

Document ID: EDOC1000079719

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