Mls Qos Dscp-Mutation - Cisco Catalyst 3560-X Command Reference Manual

mls qos dscp-mutation

mls qos dscp-mutation
Syntax Description
Defaults
Command Modes
Command History
Usage Guidelines
Examples
Catalyst 3750-X and 3560-X Switch Command Reference
2-370
Downloaded from www.Manualslib.com
Use the mls qos dscp-mutation interface configuration command on the switch stack or on a standalone
switch to apply a Differentiated Services Code Point (DSCP)-to-DSCP-mutation map to a DSCP-trusted
port. Use the no form of this command to return the map to the default settings (no DSCP mutation).
mls qos dscp-mutation dscp-mutation-name
no mls qos dscp-mutation dscp-mutation-name
dscp-mutation-name
The default DSCP-to-DSCP-mutation map is a null map, which maps incoming DSCPs to the same
DSCP values.
Interface configuration
Release Modification
12.2(53)SE2 This command was introduced.
If two quality of service (QoS) domains have different DSCP definitions, use the
DSCP-to-DSCP-mutation map to translate one set of DSCP values to match the definition of another
domain. You apply the DSCP-to-DSCP-mutation map to the receiving port (ingress mutation) at the
boundary of a quality of service (QoS) administrative domain.
With ingress mutation, the new DSCP value overwrites the one in the packet, and QoS handles the packet
with this new value. The switch sends the packet out the port with the new DSCP value.
You can configure multiple DSCP-to-DSCP-mutation maps on ingress ports.
You apply the map only to DSCP-trusted ports. If you apply the DSCP mutation map to an untrusted
port, to class of service (CoS) or IP-precedence trusted port, the command has no immediate effect until
the port becomes DSCP-trusted.
This example shows how to define the DSCP-to-DSCP-mutation map named dscpmutation1and to apply
the map to a port:
Switch(config)# mls qos map dscp-mutation dscpmutation1 10 11 12 13 to 30
Switch(config)# interface gigabitethernet3/0/1
Switch(config-if)# mls qos trust dscp
Switch(config-if)# mls qos dscp-mutation dscpmutation1
manuals search engine
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
Name of the DSCP-to-DSCP-mutation map. This map was previously
defined with the mls qos map dscp-mutation global configuration
command.
OL-21522-02