Chapter 36 Configuring QoS

Configuring Standard QoS

 

Command

Purpose

Step 4

 

 

match {access-group acl-index-or-name

Define the match criterion to classify traffic.

 

ip dscp dscp-listip precedence

By default, no match criterion is defined.

 

ip-precedence-list}

 

Only one match criterion per class map is supported, and only one ACL

 

 

 

 

per class map is supported.

 

 

For access-groupacl-index-or-name,specify the number or name

 

 

of the ACL created in Step 2.

 

 

For ip dscp dscp-list, enter a list of up to eight IP DSCP values to

 

 

match against incoming packets. Separate each value with a space.

 

 

The range is 0 to 63.

 

 

For ip precedence ip-precedence-list, enter a list of up to eight

 

 

IP-precedence values to match against incoming packets. Separate

 

 

each value with a space. The range is 0 to 7.

Step 5

 

 

end

Return to privileged EXEC mode.

Step 6

 

 

show class-map

Verify your entries.

Step 7

 

 

copy running-config startup-config

(Optional) Save your entries in the configuration file.

 

 

 

To delete an existing policy map, use the no policy-mappolicy-map-nameglobal configuration command. To delete an existing class map, use the no class-map[match-all match-any] class-map-nameglobal configuration command. To remove a match criterion, use the no match {access-groupacl-index-or-name ip dscp ip precedence} class-map configuration command.

This example shows how to configure the class map called class1. The class1 has one match criterion, which is access list 103. It permits traffic from any host to any destination that matches a DSCP value of 10.

Switch(config)# access-list 103 permit any any dscp 10

Switch(config)# class-map class1

Switch(config-cmap)#match access-group 103

Switch(config-cmap)# end

Switch#

This example shows how to create a class map called class2, which matches incoming traffic with DSCP values of 10, 11, and 12.

Switch(config)# class-map class2

Switch(config-cmap)#match ip dscp 10 11 12

Switch(config-cmap)# end

Switch#

This example shows how to create a class map called class3, which matches incoming traffic with IP-precedence values of 5, 6, and 7:

Switch(config)# class-map class3

Switch(config-cmap)#match ip precedence 5 6 7

Switch(config-cmap)# end

Switch#

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

36-50

OL-9775-02

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Cisco Systems 3750E manual Match access-group acl-index-or-name, Ip dscp dscp-list ip precedence, Ip-precedence-list, 36-50