remark dscp

Function

The remark dscp command re-marks the DSCP value of an IPv4 or IPv6 packet.

The undo remark dscp command cancels the configuration.

By default, re-marking the DSCP value of an IPv4 or IPv6 packet is not configured in traffic behavior view.

Format

remark ipv6 dscp dscp-value

remark dscp { dscp-value | af11 | af12 | af13 | af21 | af22 | af23 | af31 | af32 | af33 | af41 | af42 | af43 | cs1 | cs2 | cs3 | cs4 | cs5 | cs6 | cs7 | default | ef }

undo remark ipv6 dscp [ dscp-value ]

undo remark dscp [ dscp-value | af11 | af12 | af13 | af21 | af22 | af23 | af31 | af32 | af33 | af41 | af42 | af43 | cs1 | cs2 | cs3 | cs4 | cs5 | cs6 | cs7 | default | ef ]

Parameters

Parameter	Description	Value
dscp-value	Specifies the DSCP value of IPv4 or IPv6 packets to be matched.	The value is an integer ranging from 0 to 63.
af11	DSCP value is af11.	-
af12	DSCP value is af12.	-
af13	DSCP value is af13.	-
af21	DSCP value is af21.	-
af22	DSCP value is af22.	-
af23	DSCP value is af23.	-
af31	DSCP value is af31.	-
af32	DSCP value is af32.	-
af33	DSCP value is af33.	-
af41	DSCP value is af41.	-
af42	DSCP value is af42.	-
af43	DSCP value is af43.	-
cs1	DSCP value is cs1.	-
cs2	DSCP value is cs2.	-
cs3	DSCP value is cs3.	-
cs4	DSCP value is cs4.	-
cs5	DSCP value is cs5.	-
cs6	DSCP value is cs6.	-
cs7	DSCP value is cs7.	-
default	DSCP value is default.	-
ef	DSCP value is ef.	-
ipv6	Specifies an IPv6 packets.	-

Views

Traffic behavior view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
qos	write

Usage Guidelines

Usage Scenario

The DSCP value of packets needs to be re-marked in certain cases. For example, the DSCP value has already been marked before service traffic passes the ingress (if the packets are sent from a DSCP domain or a user marks the DSCP value). The DSCP value still needs to be re-marked according to the SLA.

To modify the priority of IPv4or IPv6 packets in the traffic classifier, you can run this command to re-mark the DSCP value of the packets and adjust the priority of the packets.

Prerequisites

The traffic behavior is configured.

Follow-up Procedure

The traffic policy is configured and applied to interfaces.

Precautions

If ipv6 is used, it indicates that the DSCP value of IPv6 packets is re-marked. If ipv6 is not used, it indicates that the DSCP value of IPv4 packets is re-marked. If the remark [ ipv6 ] dscp command is run repeatedly in the same traffic behavior view, the later configuration overrides the previous one.

This command re-marks only the outermost label of packets.

Example

# Re-mark the DSCP value of packets as EF.

<HUAWEI> system-view
[~HUAWEI] traffic behavior b1
[*HUAWEI-behavior-b1] remark dscp ef

# Set the DSCP value of IPv6 packets to 20.

<HUAWEI> system-view
[~HUAWEI] traffic behavior b1
[*HUAWEI-behavior-b1] remark ipv6 dscp 20