D-Link DGS-6600-48TS Configuration Guide - Page 396

Volume 6-QOS / Chapter 36-Quality of Service (QoS) Configuration Examples DGS6600:15#show qos interface eth3.3 weight-round-robin eth3.3 CoS weight 0 strict priority 1 strict priority 2 strict priority 3 strict priority 4 strict priority 5 strict priority 6 strict priority 7 strict priority QOS WRR Mode Configuration Example Description WRR operates by transmitting permitted packets into the transmit queue in round robin order. Initially, each queue sets its weight to a configurable weighting. Every time a packet from a higher priority CoS queue is sent, the number of the packet is subtracted from the corresponding weight. When the credit counter reaches zero, the queue is no longer serviced until its weight is replenished. The lower priority CoS queue is serviced in turn. In the following example, when traffic congestion occurs, the packet will be forward by each cos weight. Topology Step 1. R1. Set eth3.1-3.3 to tag port with vlan 1 and enable COS DGS6600:15(config)#interface range eth3.1-3.3 DGS6600:15(config-if)#trunk allowed-vlan 1 DGS6600:15(config-if)#qos trust cos DGS-6600 Configuration Guide 396