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Catalyst 3750 Metro Switch Command Reference
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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.
