Cisco Catalyst 2960 Command Reference Manual page 255

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Catalyst 2960 Switch Cisco IOS Commands

Usage Guidelines

The CoS 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 can

assign two weighted tail-drop (WTD) threshold percentages to an ingress queue by using the mls qos

srr-queue input threshold global configuration command.

You can map each CoS value to a different queue and threshold combination, allowing the frame to

follow different behavior.

This example shows how to map CoS values 0 to 3 to ingress queue 1 and to threshold ID 1 with a drop

threshold of 50 percent. It maps CoS values 4 and 5 to ingress queue 1 and to threshold ID 2 with a drop

threshold of 70 percent:

Switch(config)# mls qos srr-queue input cos-map queue 1 threshold 1 0 1 2 3

Switch(config)# mls qos srr-queue input cos-map queue 1 threshold 2 4 5

Switch(config)# mls qos srr-queue input threshold 1 50 70

You can verify your settings by entering the show mls qos maps privileged EXEC command.

Related Commands

mls qos srr-queue input bandwidth

mls qos srr-queue input buffers

mls qos srr-queue input dscp-map

mls qos srr-queue input priority-queue

mls qos srr-queue input threshold

show mls qos maps

Assigns shaped round robin (SRR) weights to an ingress

Allocates the buffers between the ingress queues.

Maps Differentiated Services Code Point (DSCP) values

to an ingress queue or maps DSCP values to a queue and

to a threshold ID.

Configures the ingress priority queue and guarantees

Assigns WTD threshold percentages to an ingress queue.

Displays QoS mapping information.

Catalyst 2960 Switch Command Reference

mls qos srr-queue input cos-map