Installation manual

4-304
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To create a service policy for a specific category of ingress traffic, follow these steps:
1. Use the class-map command to designate a class name for a specific category of
traffic, and enter the Class Map configuration mode.
2. Use the match command to select a specific type of traffic based on an access list, a
DSCP or IP Precedence value, or a VLAN.
3. Use the policy-map command to designate a policy name for a specific manner in
which ingress traffic will be handled, and enter the Policy Map configuration mode.
4. Use the class command to identify the class map, and enter Policy Map Class
configuration mode. A policy map can contain multiple class statements.
5. Use the set command to modify the QoS value for matching traffic class, and use the
policer command to monitor the average flow and burst rate, and drop any traffic
that exceeds the specified rate, or just reduce the DSCP service level for traffic
exceeding the specified rate.
6. Use the service-policy command to assign a policy map to a specific interface.
Notes: 1.
You can configure up to 16 rules per Class Map. You can also include multiple
classes in a Policy Map.
2. You should create a Class Map (page 4-304) before creating a Policy Map
(page 4-307). Otherwise, you will not be able to specify a Class Map with the
class command (page 4-308) after entering Policy-Map Configuration mode.
class-map
This command creates a class map used for matching packets to the specified class, and
enters Class Map configuration mode. Use the no form to delete a class map and return
to Global configuration mode.
Syntax
[no] class-map class-map-name [match-any]
• match-any - Match any condition within a class map.
• class-map-name - Name of the class map. (Range: 1-16 characters)
Default Setting
None
police Defines an enforcer for classified traffic PM-C 4-309
service-policy Applies a policy map defined by the policy-map command to
the input of a particular interface
IC 4-310
show class-map Displays the QoS class maps which define matching criteria
used for classifying traffic
PE 4-311
show policy-map Displays the QoS policy maps which define classification
criteria for incoming traffic, and may include policers for
bandwidth limitations
PE 4-311
show policy-map interface Displays the configuration of all classes configured for all
service policies on the specified interface
PE 4-312
Table 4-81 Quality of Service Commands (Continued)
Command Function Mode Page