Configuring The Cos-To-Dscp Map - Cisco WS-C2960-24LC-S Software Configuration Manual

Configuring Standard QoS
•
•
All the maps, except the DSCP-to-DSCP-mutation map, are globally defined and are applied to all ports.

Configuring the CoS-to-DSCP Map

You use the CoS-to-DSCP map to map CoS values in incoming packets to a DSCP value that QoS uses
internally to represent the priority of the traffic.
Table 28-12
Table 28-12
CoS Value
0
1
2
3
4
5
6
7
If these values are not appropriate for your network, you need to modify them.
Beginning in privileged EXEC mode, follow these steps to modify the CoS-to-DSCP map. This
procedure is optional.
Command
Step 1 configure terminal
Step 2 mls qos map cos-dscp dscp1...dscp8
Step 3
end
Step 4 show mls qos maps cos-dscp
Step 5 copy running-config startup-config
To return to the default map, use the no mls qos cos-dscp global configuration command.
Catalyst 2960 Switch Software Configuration Guide
28-52
Configuring the DSCP-to-CoS Map, page 28-55
Configuring the DSCP-to-DSCP-Mutation Map, page 28-56
map are not appropriate)
shows the default CoS-to-DSCP map.
Default CoS-to-DSCP Map
DSCP Value
0
8
16
24
32
40
48
56
Purpose
Enter global configuration mode.
Modify the CoS-to-DSCP map.
For dscp1...dscp8, enter eight DSCP values that correspond to CoS values
0 to 7. Separate each DSCP value with a space.
The DSCP range is 0 to 63.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Chapter 28
(optional)
(optional, unless the null settings in the
Configuring QoS
OL-8603-04