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Configuration Guide - Low Latency Network

CloudEngine 8800, 7800, 6800, and 5800 V200R005C00

This document describes the configurations of Buffer optimization of lossless queues, Fast ECN, Fast CNP, Dynamic ECN threshold of lossless queues, and Dynamic load balancing.
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(Optional) Disabling the Dynamic ECN Threshold of the Specified Lossless Queue

(Optional) Disabling the Dynamic ECN Threshold of the Specified Lossless Queue

Context

After dynamic ECN threshold is enabled for all lossless queues, if the dynamically configured ECN threshold cannot meet requirements, the dynamic ECN threshold of the queue can be disabled. Then the static ECN threshold is configured for this lossless queue.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run low-latency fabric

    The low-latency network function is enabled and the low-latency network view is displayed.

    By default, the low-latency network function is not enabled.

    NOTE:

    The low-latency fabric command does not take effect immediately after configuration, but takes effect after you save the configuration and restart the device.

  3. Run qos dynamic-ecn-threshold queue queue-index disable

    The dynamic ECN threshold of the specified lossless queue is disabled.

    By default, the dynamic ECN threshold status of the specified lossless queue is consistent with that of all lossless queues.

  4. Run commit

    The configuration is committed.

Follow-up Procedure

After the dynamic ECN threshold of the specified lossless queue is disabled, if the static ECN threshold needs to be used for this lossless queue, configure the static ECN threshold according to Configuring ECN in CloudEngine 8800, 7800, 6800, and 5800 Seriesswitch Configuration Guide - QoS.

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Updated: 2019-04-20

Document ID: EDOC1100040243

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