Cisco WS-C3020 Software Configuration Manual page 673

Chapter 32 Configuring QoS
Figure 32-13 DSCP-Trusted State on a Port Bordering Another QoS Domain
QoS Domain 1
Beginning in privileged EXEC mode, follow these steps to configure the DSCP-trusted state on a port
and modify the DSCP-to-DSCP-mutation map. To ensure a consistent mapping strategy across both QoS
domains, you must perform this procedure on the ports in both domains:
Command
Step 1 configure terminal
Step 2
mls qos map dscp-mutation
dscp-mutation-name in-dscp to out-dscp
Step 3 interface interface-id
Step 4 mls qos trust dscp
Step 5
mls qos dscp-mutation
dscp-mutation-name
Step 6 end
Step 7 show mls qos maps dscp-mutation
Step 8 copy running-config startup-config
OL-8915-03
IP traffic
Set interface to the DSCP-trusted state.
Configure the DSCP-to-DSCP-mutation map.
Purpose
Enter global configuration mode.
Modify the DSCP-to-DSCP-mutation map.
The default DSCP-to-DSCP-mutation map is a null map, which maps
an incoming DSCP value to the same DSCP value.
•
•
•
The DSCP range is 0 to 63.
Specify the port to be trusted, and enter interface configuration mode.
Valid interfaces include physical ports.
Configure the ingress port as a DSCP-trusted port. By default, the port
is not trusted.
Apply the map to the specified ingress DSCP-trusted port.
For dscp-mutation-name, specify the mutation map name created in
Step 2.
You can configure multiple DSCP-to-DSCP-mutation maps on an
ingress port.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
QoS Domain 2
For dscp-mutation-name, enter the mutation map name. You can
create more than one map by specifying a new name.
For in-dscp, enter up to eight DSCP values separated by spaces.
Then enter the to keyword.
For out-dscp, enter a single DSCP value.
Configuring Standard QoS
32-41