Set Ip Dscp (Policy-Map Configuration) - Cisco MWR 2941 Command Reference Manual

set ip dscp (policy-map configuration)

set ip dscp (policy-map configuration)
To mark a packet by setting the IP differentiated services code point (DSCP) value in the type of service
(ToS) byte, use the set ip dscp command in policy-map configuration mode. To remove a previously set
IP DSCP value, use the no form of this command.
Syntax Description ip-dscp-value
Command Default This command has no default settings.
Command Modes Policy-map configuration
Command History Release
12.2(14)SX
12.2(17d)SXB
12.2(33)SRA
12.4(20)MR
12.2(33)MRA
15.0(1)MR
Usage Guidelines You can enter reserved keywords EF (expedited forwarding), AF11 (assured forwarding class AF11),
and AF12 (assured forwarding class AF12) instead of numeric values for ip-dscp-value.
After the IP DSCP bit is set, other quality of service (QoS) features can operate on the bit settings.
You cannot mark a packet by the IP precedence using the set ip precedence (policy-map configuration)
command and then mark the same packet with an IP DSCP value using the set ip dscp command.
The network gives priority (or some type of expedited handling) to marked traffic. Typically, you set IP
precedence at the edge of the network (or administrative domain); data is queued based on the
precedence. Weighted Fair Queueing (WFQ) can speed up handling for high-precedence traffic at
congestion points. Weighted Random Early Detection (WRED) ensures that high-precedence traffic has
lower loss rates than other traffic during traffic congestion.
The set ip precedence (policy-map configuration) command is applied when you create a service policy
in QoS policy-map configuration mode. This service policy is not attached to an interface or to an ATM
virtual circuit. See the service-policy command for information on attaching a service policy to an
interface.
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
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set ip dscp ip-dscp-value
no set ip dscp ip-dscp-value
IP DSCP value; valid values are from 0 to 63. See the "Usage Guidelines"
section for additional information.
Modification
Support for this command was introduced on the Supervisor Engine 720.
This command was implemented on the Supervisor Engine 2 and integrated
into Cisco IOS Release 12.2(17d)SXB.
This command was integrated into Cisco IOS Release 12.2(33)SRA.
This command was integrated into Cisco IOS Release 12.4(20)MR.
This command was integrated into Cisco IOS Release 12.2(33)MRA.
This command was integrated into Cisco IOS Release 15.0(1)MR. This
release does not support WRED.
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
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