Cisco WS-C6506 Software Manual page 1306

Configuring QoS on the Switch
Mapping the Received IP Precedence Values to the Internal DSCP Values
To map the received IP precedence values to the internal DSCP value (see the
section on page
Task
Step 1
Map the received IP precedence values to the
internal DSCP values.
Step 2 Verify the configuration.
Enter 8 internal DSCP values to which QoS maps received IP precedence values 0–7. This example
shows how to map the received IP precedence values to the internal DSCP values:
Console> (enable) set qos ipprec-dscp-map 20 30 1 43 63 12 13 8
QoS ipprec-dscp-map set successfully.
Console> (enable)
To revert to the default IP precedence-to-DSCP value mapping, perform this task in privileged mode:
Task
Step 1 Revert to the default IP precedence-to-DSCP
value mapping.
Step 2
Verify the configuration.
This example shows how to revert to the QoS map defaults:
Console> (enable) clear qos ipprec-dscp-map
QoS ipprec-dscp-map setting restored to default.
Console> (enable)
Mapping the Internal DSCP Values to the Egress CoS Values
To map the internal DSCP values to the egress CoS values that are used for egress port scheduling and
congestion avoidance, perform this task in privileged mode:
Task
Step 1 Map the internal DSCP values to the egress CoS
values.
Step 2
Verify the configuration.
For more information, see the
Port Scheduling, Congestion Avoidance, and Marking" section on page
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
52-74
52-16), perform this task in privileged mode:
"Internal DSCP Values" section on page 52-16
Command
set qos ipprec-dscp-map dscp1 dscp2 dscp3
dscp4 dscp5 dscp6 dscp7 dscp8
show qos maps {config | runtime}
[cos-dscp-map | ipprec-dscp-map |
dscp-cos-map | policed-dscp-map]
Command
clear qos ipprec-dscp-map
show qos maps {config | runtime}
[cos-dscp-map | ipprec-dscp-map |
dscp-cos-map | policed-dscp-map]
Command
set qos dscp-cos-map dscp_list:cos ...
show qos maps {config | runtime}
[cos-dscp-map | ipprec-dscp-map |
dscp-cos-map | policed-dscp-map]
52-28.
Chapter 52 Configuring QoS
"Internal DSCP Values"
and the "Ethernet Egress
OL-8978-04