4
Command Line Interface
Default Setting
The DSCP default values are defined in the following table. Note that all the
DSCP values that are not specified are mapped to CoS value 0.
Table 4-84
IP DSCP Value
0
8
10, 12, 14, 16
18, 20, 22, 24
26, 28, 30, 32, 34, 36
38, 40, 42
48
46, 56
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• The precedence for priority mapping is IP DSCP and default switchport
priority.
• DSCP priority values are mapped to default Class of Service values according
to recommendations in the IEEE 802.1p standard, and then subsequently
mapped to the four hardware priority queues.
• This command sets the IP DSCP priority for all interfaces.
Example
The following example shows how to map IP DSCP value 1 to CoS value 0:
Console(config)#interface ethernet 1/5
Console(config-if)#map ip dscp 1 cos 0
Console(config-if)#
4-314
IP DSCP to CoS Vales
CoS Value
0
1
2
3
4
5
6
7