2-354Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command ReferenceOL-13271-03Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commandsmls qos srr-queue input thresholdmls qos srr-queue input thresholdUse the mls qos srr-queue input threshold global configuration command on the switch stack or on astandalone switch to assign weighted tail-drop (WTD) threshold percentages to an ingress queue. Usethe no form of this command to return to the default setting.mls qos srr-queue input threshold queue-id threshold-percentage1 threshold-percentage2no mls qos srr-queue input threshold queue-idSyntax DescriptionDefaults When quality of service (QoS) is enabled, WTD is enabled.The two WTD thresholds are set to 100 percent.Command Modes Global configurationCommand HistoryUsage Guidelines QoS uses the CoS-to-threshold map or the DSCP-to-threshold map to decide which class of service(CoS) or Differentiated Services Code Points (DSCPs) values are mapped to threshold 1 and tothreshold 2. If threshold 1 is exceeded, packets with CoS or DSCPs assigned to this threshold aredropped until the threshold is no longer exceeded. However, packets assigned to threshold 2 continue tobe queued and sent as long as the second threshold is not exceeded.Each queue has two configurable (explicit) drop threshold and one preset (implicit) drop threshold (full).You configure the CoS-to-threshold map by using the mls qos srr-queue input cos-map globalconfiguration command. You configure the DSCP-to-threshold map by using the mls qos srr-queueinput dscp-map global configuration command.Examples This example shows how to configure the tail-drop thresholds for the two queues. The queue 1 thresholdsare 50 percent and 100 percent, and the queue 2 thresholds are 70 percent and 100 percent:Switch(config)# mls qos srr-queue input threshold 1 50 100Switch(config)# mls qos srr-queue input threshold 2 70 100You can verify your settings by entering the show mls qos interface [interface-id] buffers or the showmls qos input-queue privileged EXEC command.queue-id ID of the ingress queue. The range is 1 to 2.threshold-percentage1threshold-percentage2Two WTD threshold percentage values. Each threshold value is apercentage of the total number of queue descriptors allocated for thequeue. Separate each value with a space. The range is 1 to 100.Release Modification12.2(40)EX1 This command was introduced.
