Cisco Systems 3560 사용자 설명서

Switch# show mls qos maps cos-dscp

Cos-dscp map:

        cos:   0  1  2  3  4  5  6  7

     --------------------------------

       dscp:   10 15 20 25 30 35 40 45

You use the IP-precedence-to-DSCP map to map IP precedence values in incoming packets to a DSCP 
value that QoS uses internally to represent the priority of the traffic. 

 shows the default IP-precedence-to-DSCP map:

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 IP-precedence-to-DSCP map. 
This procedure is optional.

To return to the default map, use the no mls qos ip-prec-dscp global configuration command.

This example shows how to modify and display the IP-precedence-to-DSCP map:

Switch(config)# mls qos map ip-prec-dscp 10 15 20 25 30 35 40 45

Switch(config)# end

0

0

1

8

2

16

3

24

4

32

5

40

6

48

7

56

Enter global configuration mode.

mls qos map ip-prec-dscp 
dscp1...dscp8

Modify the IP-precedence-to-DSCP map. 

For dscp1...dscp8, enter eight DSCP values that correspond to the IP 
precedence 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.