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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter 20 Configuring QoS
Configuring QoS
Step 4
policy-map policy-map-name
Create a policy map by entering the policy map name, and enter
policy-map configuration mode.
By default, no policy maps are defined.
The default behavior of a policy map is to set the DSCP to 0 if the
packet is an IP packet and to set the CoS to 0 if the packet is tagged. No
policing is performed.
Step 5
class class-map-name [access-group
acl-index-or-name | dscp dscp-list |
precedence ip-precedence-list]
Define a traffic classification, and enter policy-map class configuration
mode.
By default, no policy map class-maps are defined.
If a traffic class has already been defined by using the class-map global
configuration command, specify its name for class-map-name in this
command.
To define a class map that uses an access list to filter traffic or that
matches traffic to the specified DSCP or IP precedence values, use one
of these keywords:
•
For access-group acl-index-or-name, specify the number or name of
the ACL created in Step 3.
•
For dscp dscp-list, specify a list of up to eight IP DSCP values to
be matched against incoming packets. Separate each value with a
space. The range is 0 to 63.
•
For precedence ip-precedence-list, specify a list of up to eight
IP-precedence values to be matched against incoming packets.
Separate each value with a space. The range is 0 to 7.
Command
Purpose
