mpls lsp exp-mode

Function

The mpls lsp exp-mode command configures an MPLS DiffServ mode for a device.

The undo mpls lsp exp-mode command restores the default MPLS DiffServ mode.

The default MPLS DiffServ mode is Uniform.

Format

mpls lsp exp-mode { pipe | uniform }

undo mpls lsp exp-mode

Parameters

Parameter	Description	Value
pipe	Indicates that the MPLS DiffServ mode is Pipe. In this mode, the EXP value of an outer label is not copied to the EXP value of an inner label.	-
uniform	Indicates that the MPLS DiffServ mode is Uniform. In this mode, the EXP value of an outer label is copied to the EXP value of an inner label.	-

Parameter

Description

Value

pipe

Indicates that the MPLS DiffServ mode is Pipe. In this mode, the EXP value of an outer label is not copied to the EXP value of an inner label.

uniform

Indicates that the MPLS DiffServ mode is Uniform. In this mode, the EXP value of an outer label is copied to the EXP value of an inner label.

Views

MPLS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-base	write

Usage Guidelines

Usage Scenario

The mpls lsp exp-mode command can be used on the penultimate hop to globally control the copy of the EXP value of an outer label to the EXP value of an inner label.

Precautions

The configured mode by running this command takes effect only on new LPSs. The reset mpls ldp command can be used to re-establish the original LSPs. Then, the configured mode can take effect on the reestablished LSPs.
The mpls lsp exp-mode command is configured only on the penultimate hop to control the copy of the EXP value of an outer label to the EXP value of an inner label.
If an MPLS DiffServ mode is configured on the MPLS TE ingress node and the mpls lsp exp-mode command is configured on the penultimate node, the penultimate node processes label mapping in a mode specified using the mpls lsp exp-mode command.

Example

# Set the MPLS DiffServ mode to pipe on a device.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls lsp exp-mode pipe