User Guide

31-68
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
78-14099-04
Chapter 31 Configuring PFC QoS
Configuring PFC QoS
This example shows how to configure internal DSCP values 0, 8, 16, 24, 32, 40, 48, and 54 to be mapped
to egress CoS value 0:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# mls qos map dscp-cos 0 8 16 24 32 40 48 54 to 0
Router(config)# end
Router#
This example shows how to verify the configuration:
Router# show mls qos map | begin Dscp-cos map
Dscp-cos map: (dscp= d1d2)
d1 : d2 0 1 2 3 4 5 6 7 8 9
-------------------------------------
0 : 00 00 00 00 00 00 00 00 00 01
1 : 01 01 01 01 01 01 00 02 02 02
2 : 02 02 02 02 00 03 03 03 03 03
3 : 03 03 00 04 04 04 04 04 04 04
4 : 00 05 05 05 05 05 05 05 00 06
5 : 06 06 06 06 00 06 07 07 07 07
6 : 07 07 07 07
<...Output Truncated...>
Router#
Note In the Dscp-cos display, the CoS values are shown in the body of the matrix; the first digit of the DSCP
value is in the column labeled d1 and the second digit is in the top row. In the example shown, DSCP
values 41 through 47 all map to CoS 05.
Configuring DSCP Markdown Values
To configure the mapping of DSCP markdown values used by policers (see the “Policers” section on
page 31-19), perform this task:
When configuring a DSCP markdown map, note the following:
• You can enter the normal-burst keyword to configure the markdown map used by the
exceed-action policed-dscp-transmit keywords.
• You can enter the max-burst keyword to configure the markdown map used by the violate-action
policed-dscp-transmit keywords.
Command Purpose
Step 1
Router(config)# mls qos map policed-dscp
{normal-burst | max-burst} dscp1 [dscp2 [dscp3
[dscp4 [dscp5 [dscp6 [dscp7 [dscp8]]]]]]] to
markdown_dscp
Configures a DSCP markdown map.
Router(config)# no mls qos map policed-dscp
{normal-burst | max-burst}
Reverts to the default map.
Step 2
Router(config)# end
Exits configuration mode.
Step 3
Router# show mls qos maps
Verifies the configuration.