Configuring Dscp Value Maps - Cisco 6500 Series Software Configuration Manual

Configuring PFC QoS
This example shows how to set the transmit-queue size ratio for Gigabit Ethernet port 1/2:
Router# configure terminal
Enter configuration commands, one per line.
Router(config)# interface gigabitethernet 1/2
Router(config-if)# wrr-queue queue-limit 75 15
Router(config-if)# end
Router#
This example shows how to verify the configuration:
Router# show queueing interface gigabitethernet 1/2 | include queue-limit
Router#

Configuring DSCP Value Maps

These sections describe how DSCP values are mapped to other values:
•
•
•
•
Mapping Received CoS Values to Internal DSCP Values
To configure the mapping of received CoS values to the DSCP value that PFC QoS uses internally on the
PFC (see the
Command
Step 1
Router(config)# mls qos map cos-dscp dscp1 dscp2
dscp3 dscp4 dscp5 dscp6 dscp7 dscp8
Router(config)# no mls qos map cos-dscp
Step 2
Router(config)# end
Step 3
Router# show mls qos maps
This example shows how to configure the received CoS to internal DSCP map:
Router# configure terminal
Enter configuration commands, one per line.
Router(config)# mls qos map cos-dscp 0 1 2 3 4 5 6 7
Router(config)# end
Router#
This example shows how to verify the configuration:
Router# show mls qos maps | begin Cos-dscp map
Cos-dscp map:
<...Output Truncated...>
Router#
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
31-66
queue-limit ratios:
Mapping Received CoS Values to Internal DSCP Values, page 31-66
Mapping Received IP Precedence Values to Internal DSCP Values, page 31-67
Mapping Internal DSCP Values to Egress CoS Values, page 31-67
Configuring DSCP Markdown Values, page 31-68
"Internal DSCP Values" section on page
cos: 0 1 2 3
----------------------------------
dscp: 0 1 2 3
End with CNTL/Z.
75[queue 1] 25[queue 2]
31-17), perform this task:
Purpose
Configures the received CoS to internal DSCP map. You
must enter 8 DSCP values to which PFC QoS maps CoS
values 0 through 7.
Reverts to the default map.
Exits configuration mode.
Verifies the configuration.
End with CNTL/Z.
4 5 6 7
4 5 6 7
Chapter 31 Configuring PFC QoS
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