Reference Guide

Applying an Output QoS Policy to a Queue
Specifying an Aggregate QoS Policy
Applying an Output Policy Map to an Interface
3. Apply the policy map to an interface.
Applying an Output QoS Policy to a Queue
To apply an output QoS policy to a queue, use the following command.
● Apply an output QoS policy to queues.
INTERFACE mode
service-queue
Specifying an Aggregate QoS Policy
To specify an aggregate QoS policy, use the following command.
● Specify an aggregate QoS policy.
POLICY-MAP-OUT mode
policy-aggregate
Applying an Output Policy Map to an Interface
To apply an output policy map to an interface, use the following command.
● Apply an input policy map to an interface.
INTERFACE mode
service-policy output
You can apply the same policy map to multiple interfaces, and you can modify a policy map after you apply it.
DSCP Color Maps
This section describes how to configure color maps and how to display the color map and color map configuration.
This sections consists of the following topics:
● Creating a DSCP Color Map
● Displaying Color Maps
● Display Color Map Configuration
Creating a DSCP Color Map
You can create a DSCP color map to outline the differentiated services codepoint (DSCP) mappings to the appropriate color
mapping (green, yellow, red) for the input traffic. The system uses this information to classify input traffic on an interface based
on the DSCP value of each packet and assigns it an initial drop precedence of green, yellow, or red
The default setting for each DSCP value (0-63) is green (low drop precedence). The DSCP color map allows you to set the
number of specific DSCP values to yellow or red. Traffic marked as yellow delivers traffic to the egress interface, which will
either transmit or drop the packet based on configured queuing behavior. Traffic marked as red (high drop precedence) is
dropped.
Important Points to Remember
● All DSCP values that are not specified as yellow or red are colored green (low drop precedence).
Quality of Service (QoS)
615