Dell POWEREDGE M1000E User Manual

Page 827

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36-41

Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide

OL-13270-03

Chapter 36 Configuring QoS

Configuring Standard QoS

Figure 36-13

DSCP-Trusted State on a Port Bordering Another QoS Domain

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:

101235

QoS Domain 1

QoS Domain 2

Set interface to the DSCP-trusted state.

Configure the DSCP-to-DSCP-mutation map.

IP traffic

Command

Purpose

Step 1

configure terminal

Enter global configuration mode.

Step 2

mls qos map dscp-mutation
dscp-mutation-name in-dscp to out-dscp

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.

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.

The DSCP range is 0 to 63.

Step 3

interface interface-id

Specify the port to be trusted, and enter interface configuration mode.

Valid interfaces include physical ports.

Step 4

mls qos trust dscp

Configure the ingress port as a DSCP-trusted port. By default, the port
is not trusted.

Step 5

mls qos dscp-mutation
dscp-mutation-name

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.

Step 6

end

Return to privileged EXEC mode.

Step 7

show mls qos maps dscp-mutation

Verify your entries.

Step 8

copy running-config startup-config

(Optional) Save your entries in the configuration file.

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