Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 773
DSCP Color Maps, Creating a DSCP Color Map
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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) 773
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