Creating WRED ProfilesTo create WRED profiles, use the following commands.1 Create a WRED profile.CONFIGURATION modewred-profile2 Specify the minimum and maximum threshold values.WRED modethresholdApplying a WRED Profile to TrafficAfter you create a WRED profile, you must specify to which traffic Dell Networking OS should apply the profile.Dell Networking OS assigns a color (also called drop precedence) — red, yellow, or green — to each packet based on it DSCP value beforequeuing it.DSCP is a 6–bit field. Dell Networking uses the first three bits (LSB) of this field (DP) to determine the drop precedence.• DP values of 110 and 100, 101 map to yellow; all other values map to green.• If you do not configure Dell Networking OS to honor DSCP values on ingress (refer to Honoring DSCP Values on Ingress Packets), alltraffic defaults to green drop precedence.• Assign a WRED profile to either yellow or green traffic.QOS-POLICY-OUT modewredDisplaying Default and Configured WRED ProfilesTo display the default and configured WRED profiles, use the following command.• Display default and configured WRED profiles and their threshold values.EXEC modeshow qos wred-profileDisplaying WRED ProfilesExample of the show qos wred-profile Command.Dell#show qos wred-profileWred-profile-name min-threshold max-threshold max-drop-ratewred_drop 0 0 100wred_teng_y 467 4671 100wred_teng_g 467 4671 50wred_fortyg_y 467 4671 50wred_fortyg_g 467 4671 25Quality of Service (QoS) 749
