Cisco Systems 3750E manual Configuring the Policed-DSCP Map, 36-65

Chapter 36 Configuring QoS

Configuring Standard QoS

Beginning in privileged EXEC mode, follow these steps to modify the IP-precedence-to-DSCP map. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	mls qos map ip-prec-dscp	Modify the IP-precedence-to-DSCP map.
	dscp1...dscp8	For dscp1...dscp8, enter eight DSCP values that correspond to the IP
		precedence values 0 to 7. Separate each DSCP value with a space.
		The DSCP range is 0 to 63.
Step 3
	end	Return to privileged EXEC mode.
Step 4
	show mls qos maps ip-prec-dscp	Verify your entries.
Step 5
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To return to the default map, use the no mls qos ip-prec-dscpglobal configuration command.

This example shows how to modify and display the IP-precedence-to-DSCP map:

Switch(config)# mls qos map ip-prec-dscp 10 15 20 25 30 35 40 45

Switch(config)# end

Switch# show mls qos maps ip-prec-dscp

IpPrecedence-dscp map:

ipprec: 0 1 2 3 4 5 6 7

--------------------------------

dscp: 10 15 20 25 30 35 40 45

Configuring the Policed-DSCP Map

You use the policed-DSCP map to mark down a DSCP value to a new value as the result of a policing and marking action.

The default policed-DSCP map is a null map, which maps an incoming DSCP value to the same DSCP value.

Beginning in privileged EXEC mode, follow these steps to modify the policed-DSCP map. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2 mls qos map policed-dscp dscp-listto		Modify the policed-DSCP map.
	mark-down-dscp	• For dscp-list, enter up to eight DSCP values separated by spaces.
		Then enter the to keyword.
		• For mark-down-dscp, enter the corresponding policed (marked down)
		DSCP value.
Step 3
	end	Return to privileged EXEC mode.
Step 4
	show mls qos maps policed-dscp	Verify your entries.
Step 5
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		36-65