Cisco Catalyst 3750 Metro - Cpu Traffic Qos Dscp

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Catalyst 3750 Metro Switch Command Reference
OL-9645-10
Chapter 2 Catalyst 3750 Metro Switch Cisco IOS Commands
cpu traffic qos dscp
cpu traffic qos dscp
Use the cpu traffic qos dscp command in global configuration mode to configure a differentiated
services code point (DSCP) value for CPU traffic. To return to the default value, use the no form of this
command.
cpu traffic qos dscp {dscp-value | trust | dscp-mutation mutation-map-name}
no cpu traffic qos dscp {dscp-value | trust | dscp-mutation mutation-map-name}
Syntax Description
Command Default Control plane (CPU) traffic is not marked for QoS.
Command Modes Global configuration
Command History
Usage Guidelines This feature must be configured globally for a switch; it cannot be configured per-port or per-protocol.
Enter each cpu traffic qos marking action on a separate line.
The trust keyword configures the switch to trust the incoming CoS, DSCP, or precedence value and mark
the packet according to the global map configuration.
The mutation keyword configures the switch to change the incoming value according to the global
mutation-map configuration.
When you configure the switch to trust CoS, the configuration applies to both IP and non-IP traffic.
When you configure the switch to trust or change DSCP or precedence, but not CoS, the configuration
applies only to IP traffic.
When you configure the switch to trust CoS and trust or change DSCP or precedence, then trust CoS
applies to non-IP traffic and trust or change DSCP or precedence applies to IP traffic.
The cpu traffic qos dscp global configuration command configures DSCP marking for CPU-generated
traffic by trusting DSCP, mutating DSCP or specifying a DSCP value. A new configuration overwrites
the existing configuration.
The cpu traffic qos dscp and cpu traffic qos precedence global configuration commands are mutually
exclusive. A new configuration overwrites the existing configuration.
dscp-value Configure the DSCP value for CPU traffic. The range is from 0 to 63. If no
DSCP value is configured, the protocol specific value for each packet
applies.
trust Configure the switch to trust the DSCP value of the incoming packet.
dscp-mutation
mutation-map-name
Configure the switch to change the incoming DSCP value based on the
configured mutation-map.
Release Modification
12.2(52)SE This command was introduced.