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NE40E V800R010C10SPC500 Configuration Guide - QoS 01

This is NE40E V800R010C10SPC500 Configuration Guide - QoS
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(Optional) Configuring Scheduling Parameters of an FQ

(Optional) Configuring Scheduling Parameters of an FQ

You can define an FQ profile rather than adopt the default profile to configure WFQ scheduling weights, traffic shaping, the shaping rate, and the way of dropping packets.


Do as follows on the router:

You can configure scheduling parameters in one flow queue profile for the eight FQs of a subscriber respectively.

If you do not configure a flow queue, the system uses the default flow queue profile.

  • By default, the system performs PQ scheduling on the FQs with the priorities of EF, CS6, and CS7.
  • The system defaults the FQs with the priorities of BE, AF1, AF2, AF3, and AF4 to WFQ. The scheduling weight proportion is 10:10:10:15:15.
  • By default, the system performs no traffic shaping.
  • The default discarding policy is the tail drop.


  1. Run system-view

    The system view is displayed.

  2. Run flow-queue flow-queue-name [ priority-mode ]

    The FQ view is displayed.

    If priority-mode is specified in the command, the priority-mode FQ view is displayed.

  3. (Optional) Run priority priority-value { pq | wfq }

    The scheduling mode of priority-mode flow queues on the same scheduler is set to PQ or WFQ in the priority-mode flow queue view.

    This command can be configured only in the flow queue view in which the flow-queue flow-queue-name priority-mode command has been configured.

  4. (Optional) Run share-shaping [ shap-id ] { af1 | af2 | af3 | af4 | be | cs6 | cs7 ef } * [ pq | wfq weight weight-value | lpq ] shaping-value [ pbs pbs-value ]

    Share shaping for the overall traffic of multiple FQs is configured.

    After queues configured with share shaping are shaped, the queues are scheduled together with other user queues. If no scheduling mode is specified for share shaping, share shaping uses the same scheduling mode as that of sub-schedulers.

    In the priority-mode FQ view, the command format is share-shaping [ shap-id ] cos-value &<2–8> [ pq [ weight weight-value ] | wfq [ weight weight-value ] ] shaping-value [ pbs pbs-value ].

  5. (Optional) Run share-shaping cos-value &<2–8> random-discard random-discard

    The random discard value is configured for share-shaped queues.

  6. (Optional) Run queue cos-value random-discard random-discard-value

    The random discard value is configured for an FQ.

  7. Run queue queue-name { { pq | wfq weight weight-value | lpq } | { shaping { shaping-value | shaping-percentage shaping-percentage-value } [ pbs pbs-value ] | car { car-value | car-percentage car-percentage-value } [ pbs pbs-value ] } | flow-wred wred-name | low-latency | low-jitter } *

    A queue scheduling policy for a class is set.

  8. Run quit

    Return to the system view.

  9. Run qos flow-queue low-latency enable

    The low-latency function is enabled for flow queues in PQ scheduling mode.

    This command is supported only on the Admin VS.

  10. Run slot slot-id

    The slot view is displayed.

  11. (Optional) Run qos user-queue burst-size bytes bytes-value time time-value

    The minimum default burst size and burst time are configured.

  12. (Optional) Run qos cos { be | af1 | af2 | af3 | af4 | ef | cs6 | cs7 } burst-size burst-size-value

    The burst size of the eTM chip is set.

  13. Run commit

    The configuration is committed.

Updated: 2019-01-03

Document ID: EDOC1100055024

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