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qos dscp-mutation 143
qos dscp-mutation The qos dscp-mutation Global Configuration mode command applies
the DSCP Mutation map to a system DSCP trusted port. To restore the
trust state with no DSCP mutation, use the no form of this command.
Syntax
qos dscp-mutation
no qos dscp-mutation
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
The DSCP to DSCP mutation map is applied to a port at the boundary of
a Quality of Service (QoS) administrative domain.
If two QoS domains have different DSCP definitions, use the DSCP to
DSCP mutation map to match one set of DSCP values with the DSCP
values of another domain.
Apply the DSCP to DSCP mutation map only to ingress and to
DSCP-trusted ports. Applying this map to a port causes IP packets to be
rewritten with newly mapped DSCP values at the ingress ports.
If the DSCP to DSCP mutation map is applied to an untrusted port, class
of service (CoS) or IP-precedence trusted port, this command has no
immediate effect until the port becomes DSCP-trusted.
Example
The following example applies the DSCP Mutation Map to system DSCP
trusted ports.
qos map
dscp-mutation
The qos map dscp-mutation Global Configuration mode command
modifies the DSCP to DSCP mutation map. To restore the default DSCP to
DSCP mutation map, use the no form of this command.
Console(config)#
qos dscp-mutation