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CLI-based Configuration Guide - QoS

AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009

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Application Scenarios for Priority Re-marking

Application Scenarios for Priority Re-marking

Priority Re-marking

Priority re-marking technology re-marks the packets that require a short delay and high service quality with a high priority so that the packets can be preferentially scheduled or forwarded.

As shown in Figure 8-1, packets of different services are identified by 802.1p priorities on the LAN. When packets reach the WAN, it is required that differentiated services are provided based on DSCP priorities.

Figure 8-1  Networking of priority re-marking

Service Deployment

  • Configure a traffic classifier and define a matching rule based on 802.1p priorities to differentiate voice, video, and data packets.
  • Configure a traffic behavior to re-mark different DSCP priorities for packets of voice, video, and data services. The priorities of voice, video, and data services are in descending order.
  • Configure a traffic policy, bind the traffic classifier and traffic behavior to the traffic policy, and apply the traffic policy to the inbound direction of RouterA so that the priorities of voice, video, and data services are in descending order on the Layer 3 network.
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Updated: 2019-12-27

Document ID: EDOC1000174115

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