Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.6 - Page 760

• queue-id-The internal class of service queue (range 0-6). The queue-id is not the same as the CoS value received in incoming packets. Use the show classofservice dot1p-mapping command to display the CoS value to internal CoS queue mapping. • min-thresh-The minimum threshold at which to begin dropping, based on the configured maximum drop probability for each color and for nonTCP packets. Range 0 to 250. At or below the minimum threshold, no packets are dropped. The range between the minimum and maximum thresholds is divided equally into eight increasing levels of drop probability. • max-thresh-The maximum threshold to end dropping at the configured maximum drop probability for each color and for non-TCP packets. Range 0 to 250. Above the maximum threshold, 100% of matching packets are dropped. • drop-prob-scale-The maximum drop probability. Range 0-100. This is the drop probability for a packet when the maximum threshold is reached. Above the maximum threshold, 100% of matching packets are dropped. • ecn-Enables ECN marking for the selected CoS queues. Packets marked as ECN capable are not dropped when selected for discard by WRED. NOTE: The ecn parameter is not supported on the N1500 series switch. Default Configuration The table below shows the default green, yellow, and red TCP and non-TCP minimum/maximum drop thresholds and the green, yellow and red TCP and non-TCP drop probabilities. The thresholds for each color and CoS queue are configured independently and may overlap. By default, WRED is not enabled for any CoS queue and ECN is not enabled for any CoS queue. Queue ID 0 1 2 3 WRED Minimum Threshold 40/30/20/100 40/30/20/100 40/30/20/100 40/30/20/100 WRED Maximum Threshold 100/ 90/ 80/100 100/ 90/ 80/100 100/ 90/ 80/100 100/ 90/ 80/100 WRED Drop ECN Enabled Probability Scale 10/ 10/ 10/ 10 No 10/ 10/ 10/ 10 No 10/ 10/ 10/ 10 No 10/ 10/ 10/ 10 No Layer 2 Switching Commands 760