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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 4-61. IP DSCP to CoS Vales
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 Port, IP Precedence or 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)#
show map ip port
Use this command to show the IP port priority map.
Syntax
show map ip port [interface]
interface
• ethernet unit/port
- unit - This is device 1.
- port - Port number.
• port-channel channel-id (Range: 1-4)
CoS Value
0
1
2
3
4
5
6
7
Priority Commands
4-173
4
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