Cisco Catalyst 3750 Metro - Mls Qos Srr-Queue Output Cpu-Queue

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Catalyst 3750 Metro Switch Command Reference
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Chapter 2 Catalyst 3750 Metro Switch Cisco IOS Commands
mls qos srr-queue output cpu-queue
mls qos srr-queue output cpu-queue
Use the mls qos srr-queue output cpu queue global configuration command to assign CPU-generated
control plane packets to an egress queue and to specify the threshold values. Use the no form of this
command to return to the default setting.
mls qos srr-queue output cpu queue queue-id threshold threshold-id
no mls qos srr-queue output cpu queue queue -d threshold threshold-id
Syntax Description
Defaults The default egress queue value is 2.
Command Modes Global configuration
Command History
Usage Guidelines Use this command to specify an egress queue and a threshold ID for CPU-generated traffic.
You can assign each packet that flows through the switch to a queue and to a threshold. Specifically, you
map Differentiated Services Code Value (DSCP) or Class of Service (CoS) values to an egress queue-set
and map DSCP or CoS values to a threshold ID. You use the mls qos srr-queue output dscp-map queue
queue-id {dscp1...dscp8 | threshold threshold-id dscp1...dscp8} or the mls qos srr-queue output
cos-map queue queue-id {cos1...cos8 | threshold threshold-id cos1...cos8} global configuration
command. When you mark a CPU-generated control plane packet with a DSCP or CoS value, you can map
traffic to any of the four egress queues.
Examples This example shows how to specify an egress queue for CPU-generated traffic. In this example, the
traffic is sent from queue 2 and has a threshold ID of 1.
Switch(config)# mls qos srr-queue output cpu queue 2 threshold 1
Switch(config)# cpu traffic qos dscp 20
Note that threshold 3 specifically applies to CPU-generated traffic. For example: If you explicitly issue
the mls qos srr-queue output cpu queue 3 threshold 3 command, then traffic is always sent through
queue 3 regardless of the dscp-map or cpu traffic qos marking settings.
You can verify your settings by entering the show mls qos maps, the show mls qos interface
[interface-id] buffers, or the show mls qos queue-set privileged EXEC commands.
queue queue-id Specify an egress queue and ID. The range is 1 to 4.
threshold threshold-id Specify a threshold value and ID. The range is 1 to 3.
Release Modification
12.2(44)SE This command was introduced.