QoS commands apply qos apply qos threshold-profile dwrr queue map queue 队列名称 qos cos-map qos dscp qos dscp-map qos queue-profile qos schedule-profile qos shape qos threshold-profile qos trust queue rate-limit 显示interface queues 显示interface qos 显示qos cos-map 显示qos dscp-map 显示qos queue-profile 显示qos schedule-profile 显示qos threshold-profile 显示qos trust strict queue