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NE40E V800R010C10SPC500 Configuration Guide - QoS 01

This is NE40E V800R010C10SPC500 Configuration Guide - QoS
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(Optional) Configuring the Shared Threshold of Buffer Resources

(Optional) Configuring the Shared Threshold of Buffer Resources

This section describes how to configure the shared threshold of buffer resources.

Context

Perform the following steps on the router:

Queues share buffer resources. If the buffer resources are exhausted, packet loss occurs even if the queues are not congested. To prevent buffer resources from being exhausted by some queues, control flow-wred scheduling. If the flow-wred value is set to a small value, packet loss occurs in traffic bursts. To resolve this problem, run the qos global-buffer command to set the shared threshold of buffer resources. Before the shared buffer resources are exhausted, flow-wred configurations do not take effect to prevent packet loss.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run slot slot-id

    The slot view is displayed.

  3. Run qos global-buffer { share-threshold share-value | { be | af1 | af2 | af3 | af4 | ef | cs6 | cs7 } share } { inbound | outbound }

    Flow-wred scheduling is controlled on a board. Before the buffer resources shared by queues are exhausted, the flow-wred configurations for specific queues do not take effect.

  4. Run commit

    The configuration is committed.

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Updated: 2019-01-03

Document ID: EDOC1100055024

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