Set Dscp - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

set dscp

To mark a packet by setting the differentiated services code point (DSCP) value in the type of service
(ToS) byte, use the set dscp command in policy-map class configuration mode. To remove a previously
set DSCP value, use the no form of this command.
Syntax Description
ip
dscp-value
from-field
table
table-map-name
Command Default Disabled
Command Modes
Policy-map class configuration mode
Command History Release
12.2(8a)EW
12.2(40)SG
OL-27596 -01
set [ip] dscp {dscp-value | from-field [table table-map-name]}
no set [ip] dscp {dscp-value | from-field [table table-map-name]
(Optional) Specifies that the match is for IPv4 packets only. If not used, the
match is on both IPv4 and IPv6 packets.
A number from 0 to 63 that sets the DSCP value. A mnemonic name for
commonly used values can also be used.
Specific packet-marking category to be used to set the DSCP value of the
packet. If you are using a table map for mapping and converting
packet-marking values, this establishes the "map from" packet-marking
category. Packet-marking category keywords are as follows:
•
•
•
•
(Optional) Used in conjunction with the from-field argument. Indicates that
the values set in a specified table map will be used to set the DSCP value.
(Optional) Used in conjunction with the table keyword. Name of the table
map used to specify the DSCP value. The name can be a maximum of 64
alphanumeric characters.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Added support for from-field on Supervisor Engine 6-E and Catalyst 4900M.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
cos
qos-group
dscp
precedence
set dscp
2-625