Table of Contents
Advertisement
Command Line Interface
Command Usage
• The precedence for priority mapping is IP Port, IP Precedence or IP DSCP, and
default switchport priority.
• IP Precedence and IP DSCP cannot both be enabled. Enabling one of these
priority types will automatically disable the other type.
Example
The following example shows how to enable IP DSCP mapping globally:
Console(config)#map ip dscp
Console(config)#
map ip dscp (Interface Configuration)
This command sets IP DSCP priority (i.e., Differentiated Services Code Point
priority). Use the no form to restore the default table.
Syntax
map ip dscp dscp-value cos cos-value
no map ip dscp
•
dscp-value - 8-bit DSCP value. (Range: 0-255)
•
cos-value - Class-of-Service value (Range: 0-7)
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.
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 eight hardware priority queues.
• This command sets the IP DSCP priority for all interfaces.
4-154
CoS Value
0
1
2
3
4
5
6
7
Advertisement
Table of Contents
