Cisco Catalyst 3560-X Command Reference Manual page 421

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The 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 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 DSCP value to a different queue and threshold combination, allowing the frame to

follow different behavior.

You can map up to eight DSCP values per command.

This example shows how to map DSCP values 0 to 6 to ingress queue 1 and to threshold 1 with a drop

threshold of 50 percent. It maps DSCP values 20 to 26 to ingress queue 1 and to threshold 2 with a drop

threshold of 70 percent:

Switch(config)# mls qos srr-queue input dscp-map queue 1 threshold 1 0 1 2 3 4 5 6

Switch(config)# mls qos srr-queue input dscp-map queue 1 threshold 2 20 21 22 23 24 25 26

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.

mls qos srr-queue input bandwidth

mls qos srr-queue input buffers

mls qos srr-queue input cos-map

mls qos srr-queue input priority-queue

mls qos srr-queue input threshold

show mls qos maps

manuals search engine

mls qos srr-queue input dscp-map

Assigns shaped round robin (SRR) weights to an ingress

Allocates the buffers between the ingress queues.

Maps class of service (CoS) values to an ingress queue

or maps CoS values to a queue and to threshold ID.

Configures the ingress priority queue and guarantees

Assigns WTD threshold percentages to an ingress queue.

Displays QoS mapping information.

Catalyst 3750-X and 3560-X Switch Command Reference

Catalyst 3750-x