(Single choice) When planning QoS, it is necessary to plan reasonably according to the service, and adopt the () scheduling mode for high-priority services.
In campus/access QoS planning on Huawei devices, queue scheduling commonly supports RR, WRR/DRR, and (optionally) strict-priority. WRR (Weighted Round Robin) assigns larger weights to high-priority queues so they receive more transmission opportunities and bandwidth than lower-priority queues while still serving all queues. Therefore, when ensuring better treatment for high-priority services under round-robin–type scheduling, WRR is the recommended choice.
[References: HCIP-Access V2.5 Study Guide – QoS Overview and Queue Scheduling (RR/WRR/DRR concepts and use)., , ]
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