Cisco Catalyst 2960 Software Configuration Manual page 804
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Also See for Catalyst 2960:
- Configuration manual (2288 pages) ,
- Command reference manual (800 pages) ,
- Hardware installation manual (108 pages)
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Configuring Standard QoS
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.
This example shows how to modify and display the CoS-to-DSCP map:
Switch(config)# mls qos map cos-dscp 10 15 20 25 30 35 40 45
Switch(config)# end
Switch# show mls qos maps cos-dscp
Cos-dscp map:
Configuring the IP-Precedence-to-DSCP Map
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.
Table 33-14
Table 33-14
IP Precedence Value
0
1
2
3
4
5
6
7
If these values are not appropriate for your network, you need to modify them.
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
33-66
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.
cos:
0
1
2
3
4
--------------------------------
dscp:
10 15 20 25 30 35 40 45
shows the default IP-precedence-to-DSCP map:
Default IP-Precedence-to-DSCP Map
DSCP Value
0
8
16
24
32
40
48
56
5
6
7
Chapter 33
Configuring QoS
OL-26520-01
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