if-match mpls-exp

Function

The if-match mpls-exp command configures a matching rule based on the EXP priority of MPLS packets in a traffic classifier.

The undo if-match mpls-exp command deletes a matching rule based on the EXP priority of MPLS packets in a traffic classifier.

By default, a matching rule based on the EXP priority of MPLS packets is not configured in a traffic classifier.

Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730S-H, and S6730-H support this command.

Format

if-match mpls-exp exp-value &<1-8>

undo if-match mpls-exp

Parameters

Parameter	Description	Value
exp-value	Specifies the EXP priority of MPLS packets.	The value is an integer that ranges from 0 to 7. A larger value indicates a higher priority of MPLS packets.

Views

Traffic classifier view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

You can run the if-match mpls-exp command to classify MPLS packets based on the EXP priority so that the device processes packets matching the same traffic classifier in the same manner.

Prerequisites

A traffic classifier has been created using the traffic classifier command in the system view.

Precautions

If you enter multiple values of EXP priorities in the command, a packet matches the traffic classifier as long as it matches one of the EXP priorities, regardless of whether the relationship between traffic classification rules is AND or OR.

If a traffic classifier in the traffic policy contains if-match mpls-exp, the traffic policy cannot be applied to the outbound direction on the S5720-EI, S6720-EI, and S6720S-EI.

If you run the if-match mpls-exp command in the same traffic classifier view multiple times, only the latest configuration takes effect.

Example

# Configure a matching rule based on the EXP priority of 1 or 4 in the traffic classifier class1.

<HUAWEI> system-view
[HUAWEI] traffic classifier class1
[HUAWEI-classifier-class1] if-match mpls-exp 1 4