Deployment Guide

Creating a DSCP Color Map
You can create a DSCP color map to outline the dierentiated services codepoint (DSCP) mappings to the appropriate color mapping
(green, yellow, red) for the input trac. The system uses this information to classify input trac 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
specic DSCP values to yellow or red. Trac marked as yellow delivers trac to the egress interface, which will either transmit or drop the
packet based on congured queuing behavior. Trac marked as red (high drop precedence) is dropped.
Important Points to Remember
• All DSCP values that are not specied as yellow or red are colored green (low drop precedence).
• A DSCP value cannot be in both the yellow and red lists. Setting the red or yellow list with any DSCP value that is already in the other
list results in an error and no update to that DSCP list is made.
• Each color map can only have one list of DSCP values for each color; any DSCP values previously listed for that color that are not in the
new DSCP list are colored green.
• If you congured a DSCP color map on an interface that does not exist or you delete a DSCP color map that is congured on an
interface, that interface uses an all green color policy.
To create a DSCP color map:
1 Create the color-aware map QoS DSCP color map.
CONFIGURATION mode
qos dscp-color-map color-map-name
2 Create the color aware map prole.
DSCP-COLOR-MAP
dscp {yellow | red} {list-dscp-values}
3 Apply the map prole to the interface.
CONFIG-INTERFACE mode
qos dscp-color-policy color-map-name
Example: Create a DSCP Color Map
The following example creates a DSCP color map prole, color-awareness policy, and applies it to interface te 1/11.
Create the DSCP color map prole, bat-enclave-map, with a yellow drop precedence , and set the DSCP values to
9,10,11,13,15,16
Dell(conf)# qos dscp-color-map bat-enclave-map
Dell(conf-dscp-color-map)# dscp yellow 9,10,11,13,15,16
Dell (conf-dscp-color-map)# exit
Assign the color map, bat-enclave-map to interface .
Displaying DSCP Color Maps
To display DSCP color maps, use the show qos dscp-color-map command in EXEC mode.
648
Quality of Service (QoS)