preferred-control-word(VSI-LDP-PW view)

Function

The preferred-control-word command enables the preferred control word function for a VPLS PW.

The undo preferred-control-word command disables the preferred control word function for a VPLS PW.

By default, the preferred control word function is disabled for a VPLS PW.

Format

preferred-control-word

undo preferred-control-word

Parameters

Parameter	Description	Value
preferred-control-word	Preferred control word.	-

Parameter

Description

Value

preferred-control-word

Preferred control word.

Views

VSI-LDP-PW view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2vpn	write

Usage Guidelines

Usage Scenario

In load balancing mode, packets may arrive out of order. In this case, you can add the control word to packets for sequence identification.

Prerequisites

A VSI and the corresponding VPLS PW have been configured.

Example

# Enable the preferred control word function for a VPLS PW.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] quit
[*HUAWEI] mpls l2vpn
[*HUAWEI-l2vpn] quit
[*HUAWEI] vsi vsi1
[*HUAWEI-vsi-vsi1] pwsignal ldp
[*HUAWEI-vsi-vsi1-ldp] vsi-id 100
[*HUAWEI-vsi-vsi1-ldp] peer 2.2.2.2
[*HUAWEI-vsi-vsi1-ldp] peer 2.2.2.2 pw pw1
[*HUAWEI-vsi-vsi1-ldp-pw1] preferred-control-word