Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET

Chapter 2Catalyst 3750-E and 3560-E Switch Cisco IOS Commandsmls qos srr-queue input dscp-mapUsage GuidelinesThe DSCP assigned at the ingress port selects an ingress or egress queue and threshold.The drop-threshold percentage for threshold 3 is predefined. It is set to the queue-full state. You canassign two weighted tail-drop (WTD) threshold percentages to an ingress queue by using the mls qossrr-queue input threshold global configuration command.You can map each DSCP value to a different queue and threshold combination, allowing the frame tofollow different behavior.You can map up to eight DSCP values per command.ExamplesThis example shows how to map DSCP values 0 to 6 to ingress queue 1 and to threshold 1 with a dropthreshold of 50 percent. It maps DSCP values 20 to 26 to ingress queue 1 and to threshold 2 with a dropthreshold of 70 percent:Switch(config)# mls qos srr-queue input dscp-map queue 1 threshold 1 0 1 2 3 4 5 6Switch(config)# mls qos srr-queue input dscp-map queue 1 threshold 2 20 21 22 23 24 25 26Switch(config)# mls qos srr-queue input threshold 1 50 70You can verify your settings by entering the show mls qos maps privileged EXEC command.Related Commands Command Descriptionmls qos srr-queue input bandwidth Assigns shaped round robin (SRR) weights to an ingressqueue.mls qos srr-queue input buffersAllocates the buffers between the ingress queues.mls qos srr-queue input cos-map Maps class of service (CoS) values to an ingress queueor maps CoS values to a queue and to threshold ID.mls qos srr-queue input priority-queue Configures the ingress priority queue and guaranteesbandwidth.mls qos srr-queue input threshold Assigns WTD threshold percentages to an ingress queue.show mls qos mapsDisplays QoS mapping information.OL-9776-08Catalyst 3750-E and 3560-E Switch Command Reference2-377