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Configuration Guide - QoS
CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of QoS functions, including MQC, priority mapping, traffic policing, traffic shaping, interface-based rate limiting, congestion avoidance, congestion management, packet filtering, redirection, traffic statistics, and ACL-based simplified traffic policy.

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Applying the DiffServ Domain

Applying the DiffServ Domain

Context

You can bind a DiffServ domain to an inbound or outbound interface of packets to enable the device to implement mapping between packet priorities and PHBs/colors according to the mappings defined in the DiffServ domain.

Procedure

  • Apply a DiffServ domain to an Ethernet interface.
    1. Run system-view

      The system view is displayed.

    2. Run interface interface-type interface-number

      The interface view is displayed.

    3. (Optional) Run undo portswitch

      The interface is switched to Layer 3 mode.

      By default, an Ethernet interface works in Layer 2 mode.

      Before switching the interface to Layer 3 mode, ensure that the interface has no Layer 2 configuration. Otherwise, the command cannot be executed.

    4. Run trust upstream { ds-domain-name | none }

      A DiffServ domain is bound to the interface.

      By default, the DiffServ domain default is applied to the interface.

      If trust upstream none is configured on an interface, the system does not perform priority mapping for incoming packets.

    5. (Optional) Run qos phb marking dscp enable

      PHB-to-DSCP mapping is enabled for outgoing packets.

      By default, PHB-to-DSCP mapping is not enabled for outgoing packets.

    6. (Optional) Run qos phb marking 8021p disable

      PHB-to-802.1p mapping is disabled for outgoing packets.

      By default, PHB-to-802.1p mapping is enabled for outgoing packets.

    7. Run commit

      The configuration is committed.

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Updated: 2019-03-21

Document ID: EDOC1000166605

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